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Voltage RegulatorTAPCON

Operating Instructions

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All rights reserved by Maschinenfabrik Reinhausen

Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibitedunless expressly permitted.

Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents,utility models or designs.

The product may have been altered since this document was published.

We reserve the right to change the technical data, design and scope of supply.

Generally the information provided and agreements made when processing the individual quotations and ordersare binding.

The original operating instructions were written in German.

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Table of contents

Maschinenfabrik Reinhausen 2014 33587317/02 EN TAPCON

Table of contents

1 Introduction ......................................................................................................................... 8

1.1 Manufacturer ....................................................................................................................................... 8

1.2 Subject to change without notice......................................................................................................... 8

1.3 Completeness...................................................................................................................................... 8

1.4 Supporting documents......................................................................................................................... 8

1.5 Safekeeping......................................................................................................................................... 9

1.6 Notation conventions........................................................................................................................... 9

1.6.1 Hazard communication system ............................................................................................................................. 9

1.6.2 Information system.............................................................................................................................................. 10

1.6.3 Instruction system ............................................................................................................................................... 10

1.6.4 Typographic conventions .................................................................................................................................... 11

2 Safety ................................................................................................................................. 12

2.1 General safety information ................................................................................................................ 12

2.2 Appropriate use ................................................................................................................................. 12

2.3 Inappropriate use............................................................................................................................... 12

2.4 Personnel qualification ...................................................................................................................... 13

2.5 Operator's duty of care ...................................................................................................................... 13

3 Product description .......................................................................................................... 14

3.1 Scope of delivery............................................................................................................................... 14

3.2 Function description of the voltage regulation ................................................................................... 14

3.3 Performance features........................................................................................................................ 15

3.4 Operating modes ............................................................................................................................... 16

3.5 Hardware........................................................................................................................................... 17

3.5.1 Operating controls ............................................................................................................................................... 17

3.5.2 Display elements ................................................................................................................................................. 183.5.3 Front interface ..................................................................................................................................................... 20

3.5.4 Assemblies .......................................................................................................................................................... 21

3.6 Operating concept ............................................................................................................................. 25

4 Packaging, transport and storage................................................................................... 28

4.1 Packaging, transport and storage...................................................................................................... 28

4.1.1 Suitability, structure and production ................................................................................................................... 28

4.1.2 Markings.............................................................................................................................................................. 28

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Maschinenfabrik Reinhausen 20144 3587317/02 ENTAPCON

4.2 Transportation, receipt and handling of shipments............................................................................ 28

4.3 Storage of shipments......................................................................................................................... 29

5 Mounting............................................................................................................................ 30

5.1 Preparation ........................................................................................................................................ 30

5.2 Mounting device ................................................................................................................................ 30

5.3 Connecting device ............................................................................................................................. 31

5.3.1 Cable recommendation ....................................................................................................................................... 31

5.3.2 Information about laying fiber-optic cable............................................................................................................ 32

5.3.3 Electromagnetic compatibility .............................................................................................................................. 32

5.3.4 Connecting cables to the system periphery ........................................................................................................ 36

5.3.5 Wiring device....................................................................................................................................................... 36

5.3.6 Checking functional reliability.............................................................................................................................. 37

5.3.7 Mounting terminating resistor of CAN bus........................................................................................................... 38

6 Commissioning ................................................................................................................. 39

6.1 Commissioning wizard....................................................................................................................... 39

6.2 Setting parameters ............................................................................................................................ 40

6.2.1 Setting the language ........................................................................................................................................... 40

6.2.2 Setting date and time .......................................................................................................................................... 41

6.2.3 Setting further parameters................................................................................................................................... 426.3 Function tests .................................................................................................................................... 44

6.3.1 Testing a control function .................................................................................................................................... 44

6.3.2 Checking parallel operation................................................................................................................................. 45

7 Functions and settings..................................................................................................... 50

7.1 Control ............................................................................................................................................... 50

7.1.1 Desired values..................................................................................................................................................... 52

7.1.2 Active power-dependent adjustment of desired voltage value (optional) ............................................................ 53

7.1.3 Bandwidth............................................................................................................................................................ 57

7.1.4 Delay time T1 ...................................................................................................................................................... 58

7.1.5 Delay time T2 ...................................................................................................................................................... 59

7.1.6 Remote behavior ................................................................................................................................................. 60

7.2 Transformer data............................................................................................................................... 60

7.2.1 Setting the primary transformer voltage .............................................................................................................. 61

7.2.2 Setting the secondary transformer voltage.......................................................................................................... 61

7.2.3 Setting primary transformer current..................................................................................................................... 61

7.2.4 Setting the secondary transformer current .......................................................................................................... 62

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7.2.5 Setting circuit for current transformer/voltage transformer and phase angle correction...................................... 62

7.2.6 Setting measured value display .......................................................................................................................... 677.3 Control of the motor-drive unit........................................................................................................... 67

7.3.1 Setting the switching pulse for controlling the motor-drive unit ........................................................................... 68

7.3.2 Setting motor runtime monitoring ........................................................................................................................ 70

7.3.3 Setting the switching direction............................................................................................................................. 70

7.3.4 Setting switching direction monitoring................................................................................................................. 71

7.4 Line drop compensation .................................................................................................................... 71

7.4.1 R&X compensation.............................................................................................................................................. 72

7.4.2 Z compensation................................................................................................................................................... 74

7.5 Tap position capture .......................................................................................................................... 757.5.1 Digital tap position capture .................................................................................................................................. 75

7.5.2 Analog tap position capture................................................................................................................................. 76

7.6 Parallel operation............................................................................................................................... 77

7.6.1 Activating parallel operation ................................................................................................................................ 78

7.6.2 Selecting parallel operation method .................................................................................................................... 78

7.6.3 Assigning a CAN bus address............................................................................................................................. 81

7.6.4 Setting the behavior for communication failure ................................................................................................... 81

7.6.5 Setting delay time for parallel operation error messages .................................................................................... 81

7.6.6 TAPCON 2xx retrofit ......................................................................................................................................... 827.7 Limit values........................................................................................................................................ 83

7.7.1 Voltage monitoring .............................................................................................................................................. 85

7.7.2 Current monitoring............................................................................................................................................... 86

7.7.3 Power monitoring ................................................................................................................................................ 87

7.7.4 Bandwidth monitoring.......................................................................................................................................... 87

7.7.5 Switching interval monitoring............................................................................................................................... 88

7.7.6 Tap position monitoring....................................................................................................................................... 89

7.8 Function monitoring ........................................................................................................................... 90

7.9 Reversal of power flow ...................................................................................................................... 917.10 Target-tap-position operation ............................................................................................................ 93

7.11 SCADA .............................................................................................................................................. 93

7.11.1 Configuring IEC 61850 (optional) ........................................................................................................................ 94

7.11.2 Configuring IEC 60870-5-101 (optional).............................................................................................................. 96

7.11.3 Configuring IEC 60870-5-103 (optional).............................................................................................................. 99

7.11.4 Configuring IEC 60870-5-104 (optional)............................................................................................................ 101

7.11.5 Configuring Modbus (optional) .......................................................................................................................... 102

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7.11.6 Configuring DNP3 (optional) ............................................................................................................................. 105

7.12 Time synchronization....................................................................................................................... 1097.12.1 Activating time synchronization using SNTP..................................................................................................... 110

7.12.2 Entering the time server address ...................................................................................................................... 110

7.12.3 Setting the time zone......................................................................................................................................... 111

7.12.4 Setting synchronization interval......................................................................................................................... 111

7.12.5 Reference time.................................................................................................................................................. 111

7.13 User administration.......................................................................................................................... 112

7.13.1 User roles.......................................................................................................................................................... 112

7.13.2 Changing password........................................................................................................................................... 113

7.13.3 Creating, editing and deleting users.................................................................................................................. 1147.13.4 Setting access rights to parameters and events ............................................................................................... 115

7.14 Visualization .................................................................................................................................... 116

7.14.1 Configuring visualization ................................................................................................................................... 116

7.14.2 Establishing connection..................................................................................................................................... 117

7.14.3 Accessing online help........................................................................................................................................ 118

7.15 Event management ......................................................................................................................... 119

7.15.1 Displaying and acknowledging events .............................................................................................................. 119

7.15.2 Configuring events ............................................................................................................................................ 119

7.15.3 Displaying event memory.................................................................................................................................. 1217.16 Information about device ................................................................................................................. 122

7.17 Import/export manager .................................................................................................................... 124

7.17.1 Exporting data ................................................................................................................................................... 125

7.17.2 Importing data ................................................................................................................................................... 125

8 Fault elimination.............................................................................................................. 127

8.1 General faults .................................................................................................................................. 127

8.2 No regulation in AUTO mode .......................................................................................................... 127

8.3 Unwanted on-load tap-change operation ........................................................................................ 127

8.4 Man-machine interface.................................................................................................................... 128

8.5 Incorrect measured values .............................................................................................................. 128

8.6 Parallel operation faults ................................................................................................................... 129

8.7 Tap position capture incorrect ......................................................................................................... 129

8.8 Assemblies ...................................................................................................................................... 130

8.9 Other faults ...................................................................................................................................... 130

9 Messages......................................................................................................................... 132

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9.1 Event messages .............................................................................................................................. 132

10 Disposal ........................................................................................................................... 137

11 Overview of parameters ................................................................................................. 138

12 Technical data ................................................................................................................. 147

12.1 Display elements ............................................................................................................................. 147

12.2 Voltage supply ................................................................................................................................. 147

12.3 Voltage measurement and current measurement ........................................................................... 147

12.4 Digital inputs and outputs ................................................................................................................ 148

12.5 Analog inputs and outputs ............................................................................................................... 150

12.6 Central processing unit.................................................................................................................... 151

12.7 System networking .......................................................................................................................... 152

12.8 Dimensions and weight ................................................................................................................... 154

12.9 Ambient conditions .......................................................................................................................... 155

12.10 Tests................................................................................................................................................ 155

Glossary........................................................................................................................... 157

List of key words............................................................................................................. 158

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1 Introduction


Introduction

This technical file contains detailed descriptions on the safe and proper in-stallation, connection, commissioning and monitoring of the product.

It also includes safety instructions and general information about the prod-uct.

This technical file is intended solely for specially trained and authorized per-sonnel.

Manufacturer

The product is manufactured by:

Maschinenfabrik Reinhausen GmbH

Falkensteinstrae 893059 Regensburg, GermanyTel.: (+49) 9 41/40 90-0Fax: (+49) 9 41/40 90-7001E-mail: [email protected]

Further information on the product and copies of this technical file are avail-able from this address if required.

Subject to change without notice

The information contained in this technical file comprises the technical speci-fications approved at the time of printing. Significant modifications will be in-cluded in a new edition of the technical file.

The document number and version number of this technical file are shown inthe footer.

Completeness

This technical file is incomplete without the supporting documentation.

Supporting documents

The following documents apply to this product:

Operating instructions

Connection diagrams

Also observe generally valid legislation, standards, guidelines and specifica-tions on accident prevention and environmental protection in the respectivecountry of use.

1

1.1

1.2

1.3

1.4

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1 Introduction


Safekeeping

This technical file and all supporting documents must be kept ready at handand accessible for future use at all times.

Notation conventions

This section contains an overview of the symbols and textual emphasisused.

Hazard communication system

Warnings in this technical file are displayed as follows.

Warning relating to section

Warnings relating to sections refer to entire chapters or sections, sub-sec-tions or several paragraphs within this technical file. Warnings relating tosections use the following format:

WARNING Type and source of danger

Consequences

Action

Action

Embedded warning

Embedded warnings refer to a particular part within a section. These warn-ings apply to smaller units of information than the warnings relating to sec-tions. Embedded warnings use the following format:

DANGER! Instruction for avoiding a dangerous situation.

Signal words and pictograms

The following signal words are used:

Signalword

Meaning

DANGER Indicates a hazardous situation which, if not avoided, willresult in death or serious injury.

WARNING Indicates a hazardous situation which, if not avoided, couldresult in death or serious injury.

CAUTION Indicates a hazardous situation which, if not avoided, couldresult in injury.

NOTICE Indicates measures to be taken to prevent damage toproperty.

Table 1: Signal words in warning notices

1.5

1.6

1.6.1

1.6.1.1

1.6.1.2

1.6.1.3

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1 Introduction


Pictograms warn of dangers:

Pictogram MeaningWarning of a danger point

Warning of dangerous electrical voltage

Warning of combustible substances

Warning of danger of tipping

Table 2: Pictograms used in warning notices

Information system

Information is designed to simplify and improve understanding of particularprocedures. In this technical file it is laid out as follows:

Important information.

Instruction system

This technical file contains single-step and multi-step instructions.

Single-step instructions

Instructions which consist of only a single process step are structured as fol-lows:

Aim of action

Requirements (optional).

Step 1 of 1.

Result of step (optional).

Result of action (optional).

1.6.2

1.6.3

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1 Introduction


Multi-step instructions

Instructions which consist of several process steps are structured as follows:Aim of action

Requirements (optional).

1. Step 1.


2. Step 2.


Result of action (optional).

Typographic conventions

The following typographic conventions are used in this technical file:

Typographic convention Purpose Example

UPPERCASE Operating controls, switches ON/OFF

[Brackets] PC keyboard [Ctrl] + [Alt]

Bold Software operating controls PressContinue button

>> Menu paths Parameter > Control parameter

Italics System messages, error mes-sages, signals

Function monitoring alarm trig-gered

[ Number of pages]. Cross reference [ 41].

Table 3: Typographic conventions

1.6.4

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2 Safety


Safety

General safety information

The technical file contains detailed descriptions on the safe and proper in-stallation, connection, commissioning and monitoring of the product.

Read this technical file through carefully to familiarize yourself with theproduct.

Particular attention should be paid to the information given in this chap-ter.

Appropriate use

The product and associated equipment and special tools supplied with itcomply with the relevant legislation, regulations and standards, particularlyhealth and safety requirements, applicable at the time of delivery.

If used as intended and in compliance with the specified requirements andconditions in this technical file as well as the warning notices in this technicalfile and attached to the product, then the product does not present any haz-ards to people, property or the environment. This applies throughout theproduct's entire life, from delivery through installation and operation to disas-sembly and disposal.

The operational quality assurance system ensures a consistently high qualitystandard, particularly in regard to the observance of health and safety re-

quirements.The following is considered appropriate use

The product must be operated in accordance with this technical file andthe agreed delivery conditions and technical data

The equipment and special tools supplied must be used solely for the in-tended purpose and in accordance with the specifications of this techni-cal file

Inappropriate use

Use is considered to be inappropriate if the product is used other than as de-

scribed in the Appropriate use section. Please also note the following: Risk of explosion and fire from highly flammable or explosive gases, va-

pors, or dusts. Do not operate product in areas at risk of explosion.

Unauthorized or inappropriate changes to the product may lead to per-sonal injury, material damage, and operational faults. Only modify prod-uct following discussion with Maschinenfabrik Reinhausen GmbH.

2

2.1

2.2

2.3

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2 Safety


Personnel qualification

The product is designed solely for use in electrical energy systems and facili-ties operated by appropriately trained staff. This staff comprises people whoare familiar with the installation, assembly, commissioning and operation ofsuch products.

Operator's duty of care

To prevent accidents, disruptions and damage as well as unacceptable ad-verse effects on the environment, those responsible for transport, installa-tion, operation, maintenance and disposal of the product or parts of the prod-uct must ensure the following:

All warning and hazard notices are complied with.

Personnel are instructed regularly in all relevant aspects of operationalsafety, the operating instructions and particularly the safety instructionscontained therein.

Regulations and operating instructions for safe working as well as therelevant instructions for staff procedures in the case of accidents andfires are kept on hand at all times and are displayed in the workplacewhere applicable.

The product is only used when in a sound operational condition andsafety equipment in particular is checked regularly for operational relia-bility.

Only replacement parts, lubricants and auxiliary materials which are au-

thorized by the manufacturer are used. The specified operating conditions and requirements of the installationlocation are complied with.

All necessary devices and personal protective equipment for the specificactivity are made available.

The prescribed maintenance intervals and the relevant regulations arecomplied with.

Installation, electrical connection and commissioning of the product mayonly be carried out by qualified and trained personnel in accordancewith this technical file.

The operator must ensure appropriate use of the product.

2.4

2.5

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3 Product description


Product description

This chapter contains an overview of the design and function of the product.

Scope of delivery

The following items are included in the delivery:

TAPCON

Terminating resistor for CAN bus (optional)

Technical files

Please note the following:

Check the shipment for completeness on the basis of the shipping docu-

ments. Store the parts in a dry place until installation.

Function description of the voltage regulation

The TAPCON serves to keep constant the output voltage of a transformerwith an on-load tap-changer.

The TAPCON compares the transformer's measured voltage (Vactual) with adefined reference voltage (Vdesired). The difference between Vactualand Vdesiredis the control deviation (dV).

The TAPCON parameters can be optimally adjusted to the line voltage re-sponse to achieve a balanced control response with a small number of tap-change operations.

The following diagram shows an overview of voltage regulation.

3

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3.2

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Summer Winter

Load profile of grid

Control variable

Line voltage

Control path

Regulating transformer

Automatic voltage regulator

TAPCON

Desired value

Line voltage

Measurementtransformer

Automatic voltage regulator

TAPCON

Such as for parallel operation of up to 16 transformers

Substation control system

Long-distance communication and control center

Inputs

Digital and analog

Figure 1: Overview of voltage regulation

Performance features

The TAPCON is responsible for controlling tapped transformers.

Apart from control tasks, the TAPCON provides additional functions suchas:

Integrated protective functions:

Voltage monitoring

Current monitoring

Apparent power monitoring

Active power monitoring

Reactive power monitoring

Power factor monitoring

Line drop compensation

R&X compensation: Compensation for voltage drops on the line

Z compensation: Compensation for voltage fluctuations in the mesh-ed grid

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Freely configurable events

Display of all measured values such as voltage, current, active power,apparent power or reactive power

Up to 5 different desired values can be selected (optional)

You can select the tap position capture when ordering:

Analog signal (020 mA; 420 mA or 010 V)

Digital signal via BCD code

Parallel operation of up to 16 transformers in 2 groups using the follow-ing methods:

Master/Follower

Circulating reactive current minimization

Web-based visualization

SCADA

IEC 60870-5-101

IEC 60870-5-103

IEC 60870-5-104

IEC 61850 (edition 1 and edition 2)

Modbus (RTU and TCP)

DNP3

Operating modes

The device can be operated in the following operating modes:

Auto mode (AVR AUTO)

In auto mode, the device automatically regulates the voltage in accordancewith the set parameters. Manual tap-change operations using operating con-trols, inputs or a control system are not possible.

Manual mode (AVR MANUAL)

In manual mode, you can perform manual tap-change operations to increaseor decrease the voltage. The voltage is not regulated automatically.

Local mode (LOCAL)

In the Local operating mode, you can make entries and input commands us-ing the device's operating controls. You cannot use inputs or the control sys-tem to make entries or enter commands.

Remote mode (REMOTE)

In the Remote operating mode, you can make entries and carry out com-mands using digital inputs or the control system, depending on the setting ofthe Remote behavior [60] parameter.

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AVR AUTO AVR MANUAL

LOCAL REMOTE LOCAL REMOTEAutomatic regulation Yes Yes No No

Tap-change operationusing operating controls

No No Yes No

Tap-change operationusing inputs

No Yes No Yes2)

Tap-change operationusing SCADA1)

No No No Yes2)

Value adjustment usingSCADA1)

No Yes No Yes2)

Table 4: Overview of operating modes

1)Optional when connecting TAPCON to a control system (SCADA)2)You can use the Remote behavior [60] parameter to set the behavior

Hardware

The device is designed as a 19 inch slide-in housing with modular hardwareequipment. The device's individual assemblies are described in the followingsection.

Figure 2: Front view

Operating controls

The device has 7 pushbuttons and a knob. The illustration below is an over-view of all the device's operating controls.

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Figure 3: Operating controls

REMOTE key Select the operating mode:

On: REMOTE

Off: LOCAL

AVR AUTO key Activate auto mode.

RAISE key Send a control command to the motor-drive unit to increase the voltage. Onlypossible in manual mode.

AVR Manual key Activate manual mode.

LOWER key Send a control command to the motor-drive unit to reduce the voltage. Onlypossible in manual mode.

ENTER key Confirm selection and save modifiedparameters.

Rotary knob Navigation through individual menuitems and parameters.

BACK key Exit the current menu. Go to the previ-ous menu level.

Display elements

The device has a graphics display and 8 LEDs, which indicate the variousoperating statuses or events.

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Figure 4: Display elements

1 Power indicator LED 6 RAISE VOLTAGELED

2 AVR STATUSLED 7 AVR MANUALLED

3 ALARMLED 8 LOWER VOLTAGELED

4 REMOTELED 9 Display

5 AVR AUTOLED

Display

The display for the TAPCON is divided into the following areas:

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Figure 5: Display

1 Display area 3 Primary navigation

2 Secondary navigation or navi-gation path

4 Status bar

Front interface

The parameters for the device can be set using a PC. The RJ45 Ethernet in-terface on the front panel is provided for this purpose. To establish a con-nection with the device, note the Visualization [116] section.

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Figure 6: Device connection to a PC

Assemblies

Depending on configuration, the device may have various assemblies whichperform the functions required. The functions of the assemblies are descri-bed in the following sections. You can find more information about the as-semblies in the Technical data section.

Central processing unit

The CPU I assembly is the central computing unit for the device. It containsthe following interfaces:

System interface RS232 (COM1)

Serial interface RS232/422/485 (COM2)

2x Ethernet (ETH1, ETH 2.2)

1x Ethernet for front assembly (ETH 2.1)

USB (USB 2.0)

2x CAN bus (CAN 1, CAN 2)

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Figure 7: CPU I assembly

Voltage measurement and current measurement

The UI 1 and UI 3 assemblies are used for measuring voltage and current:

UI 1: Single-phase measurement of voltage and current

UI 3: 3-phase measurement of voltage and current

Figure 8: UI 3 assembly

Digital inputs and outputs

The DIO 28-15 and DIO 42-20 assemblies provide a different number of digi-tal inputs and outputs depending on the version:

DIO 28-15: 28 inputs, 15 outputs (6 normally open contacts, 9 change-over contacts)

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DIO 42-20: 42 inputs, 20 outputs (8 normally open contacts, 12 change-over contacts)

Figure 9: DIO 42-20 assembly

Analog inputs and outputs

The AIO288 assembly provides analog inputs and outputs. The AIO assem-bly supports the following signal types:

Input Output

Voltage Current Voltage Current

10 V1 V

100 mV

20 mA4...20 mA

0...10 V 0...2 mA

PT100, PT1000

Resistance measurement

Table 5: Signal types supported by the AIO assembly

Media converter

The MC 2-2 assembly is a media converter, which converts 2 electrical con-nections (RJ45) to one fiber-optic cable connection each. Each is converted

independently of the other. The following interfaces are available: 2x RJ45 (ETH12, ETH22)

2x Duplex-LC (SFP module) (ETH11, ETH21)

The media converter is designed to be transparent for the network and doesnot have its own IP address.

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Figure 10: MC 2-2 assembly

Media converter with managed switch

The SW 3-3 assembly is a media converter with managed switch, which al-lows you to convert an electrical connection (RJ45) to a fiber-optic cableconnection and to create a redundant network. The following interfaces andredundancy functions*)are available:

3x RJ45 (ETH12, ETH23, ETH24)

3x duplex LC (SFP) (ETH11, ETH21, ETH22) RSTP and PRP

*)redundancy function depends on order

Figure 11: SW 3-3 assembly

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Operating concept

You can operate the device using the controls on the front panel or using theweb-based ISM Intuitive Control Interface visualization via a PC. Thescope of function and structure of both options is virtually identical. Any dif-ferences are highlighted in these operating instructions.

User rights and user roles

The device is fitted with a rights system and a roles system. The display andaccess rights to device settings or events can therefore be controlled at userlevel.

You can configure the rights system and roles system to meet your require-ments. You will find more information about user rights and user roles in the

User administration [112] section.You can only modify the device settings or parameters if you have the nec-essary user rights.

Login/logout

The control of access rights to device settings and parameters is userbased. Various users can log in at the same time (e.g. via the visualization)and access the device.

If you want to operate the device via the operating controls and visualizationat the same time, you have to log in on the device and via the visualization.

To log in as user, proceed as follows:

1. Press the LOGINbutton in the status line.

2. Enter your user name and password and select the Okbutton.

Logged in user appears in status line.

To log out as user, proceed as follows:

Press the LOGOUTbutton in the status line.

Navigation

If you are operating the device using the controls on the front panel, you canuse the rotary knob to navigate through the entire menu. The currently se-lected menu has a blue border. To open the highlighted menu, you must

press the key. Pressing the key takes you back to the previousmenu level.

If you are operating the device using the web-based visualization, you cannavigate to the various buttons by clicking on them.

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To navigate to the desired value 1 parameter, proceed as follows:

1. Go to Settings.

2. Select Parameter.

3. Select Control.

4. Select Desired value 1.

In these operating instructions, the path for navigating to a parameter is al-ways shown in an abridged form: Go to Settings > Parameter > Control >Desired value 1.

Setting the parameters

Depending on the parameter, you can undertake the settings in variousways.

To select a list entry, proceed as follows:

1. Use rotary knob to navigate to list and press the key.

Figure 12: Selecting entry from list

2. Use rotary knob to highlight entry from list and press the key.

3. Press the Acceptbutton to save the modified parameter.

To enter a value, proceed as follows:

1. Use rotary knob to select the field for the value and press thekey.

If operating via the front panel, the numerical keypad appears.

Example

Selecting list

Entering value

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Figure 13: Entering value

2. Enter the value you want and confirm with .


To enter text, proceed as follows:

1. Use rotary knob to select the text box and press the key.

If operating via the front panel, the keyboard appears.

Figure 14: Entering text

2. Enter the text you want and confirm with .


Entering text

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4 Packaging, transport and storage


Packaging, transport and storage

Packaging, transport and storage

Suitability, structure and production

The goods are packaged in a sturdy cardboard box. This ensures that theshipment is secure when in the intended transportation position and thatnone of its parts touch the loading surface of the means of transport or touchthe ground after unloading.

The box is designed for a maximum load of 10 kg.

Inlays inside the box stabilize the goods, preventing impermissible changes

of position, and protect them from vibration.

Markings

The packaging bears a signature with instructions for safe transport and cor-rect storage. The following symbols apply to the shipment of non-hazardousgoods. Adherence to these symbols is mandatory.

Protectagainst

moisture

Top Fragile Attach liftinggear here

Center ofmass

Table 6: Shipping pictograms

Transportation, receipt and handling of shipments

In addition to oscillation stress and shock stress, jolts must also be expectedduring transportation. In order to prevent possible damage, avoid dropping,tipping, knocking over and colliding with the product.

If a crate tips over, falls from a certain height (e.g. when slings tear) or expe-riences an unbroken fall, damage must be expected regardless of theweight.

Every delivered shipment must be checked for the following by the recipientbefore acceptance (acknowledgment of receipt):

Completeness based on the delivery slip

External damage of any type.

The checks must take place after unloading when the crate or transport con-tainer can be accessed from all sides.

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If external transport damage is detected on receipt of the shipment, proceedas follows:

Immediately record the transport damage found in the shipping docu-ments and have this countersigned by the carrier.

In the event of severe damage, total loss or high damage costs, immedi-ately notify the sales department at Maschinenfabrik Reinhausen andthe relevant insurance company.

After identifying damage, do not modify the condition of the shipmentfurther and retain the packaging material until an inspection decisionhas been made by the transport company or the insurance company.

Record the details of the damage immediately onsite together with thecarrier involved. This is essential for any claim for damages!

If possible, photograph damage to packaging and packaged goods. This

also applies to signs of corrosion on the packaged goods due to mois-ture inside the packaging (rain, snow, condensation).

Be absolutely sure to also check the sealed packaging.

When damages are not determined until unpacking after receipt of the ship-ment (hidden damage), proceed as follows:

Make the party responsible for the damage liable as soon as possible bytelephone and in writing, and prepare a damage report.

Observe the time periods applicable to such actions in the respectivecountry. Inquire about these in good time.

With hidden damage, it is very hard to make the transportation company (or

other responsible party) liable. Any insurance claims for such damages canonly be successful if relevant provisions are expressly included in the insur-ance terms and conditions.

Storage of shipments

When selecting and setting up the storage location, ensure the following:

Protect stored goods against moisture (flooding, water from meltingsnow and ice), dirt, pests such as rats, mice, termites and so on, andagainst unauthorized access.

Store the crates on timber beams and planks as a protection against ris-ing damp and for better ventilation.

Ensure sufficient carrying capacity of the ground.

Keep entrance paths free.

Check stored goods at regular intervals. Also take appropriate action af-ter storms, heavy rain or snow and so on.

Visible damage

Hidden damage

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5 Mounting


Mounting

This chapter describes how to correctly mount and connect the device. Notethe connection diagrams provided.

WARNING Electric shock

Risk of fatal injury due to electrical voltage.

De-energize the device and system peripherals and lock them to pre-vent them from being switched back on.

Do so by short-circuiting the current transformer; do not idle the currenttransformer.

NOTICE

Electrostatic discharge

Damage to the device due to electrostatic discharge.

Take precautionary measures to prevent the build-up of electrostaticcharges on work surfaces and personnel.

Preparation

The following tools are needed for mounting:

Screwdriver for the fixing bolts (M6)

Small screwdriver for connecting the signal lines and supply lines

Depending on installation site and mounting variant, you may need addition-al tools and corresponding attachment material (screws, nuts, washers)which are not included in the scope of supply.

Mounting device

Depending on your order, you can mount the device in one of the followingvariants:

19" frame (in accordance with DIN 41494 Part 5)

19" flush control panel frame

Below you will find a description of how to mount the device in a 19" frame.For control panel installation or wall mounting, note the technical files sup-plied.

To mount the device in a 19" frame, proceed as follows:

1. Place cage nuts in the desired locations on the 19" frame, noting the de-vice dimensions.

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2. Place device in 19" frame and screw down.

Figure 15: Example of device mounting in a 19" frame

Connecting device

The following section describes how to establish the electrical connection tothe device.

WARNING Electric shock

Risk of fatal injury due to connection mistakes

Ground the device with a protective conductor using the groundingscrew on the housing.

Note the phase difference of the secondary terminals for the currenttransformer and voltage transformer.

Connect the output relays correctly to the motor-drive unit.

Supply the voltage via separators and ensure that current paths can beshort circuited. Fit the separator, clearly labeled, near the device's powersupply so that it is freely accessible. This will allow the device to be re-placed with ease in the event of a defect.

Cable recommendation

Please note the following recommendation from Maschinenfabrik Reinhau-sen when wiring the device.

Excessive line capacitance can prevent the relay contacts from breaking thecontact current. In control circuits operated with alternating current, take intoaccount the effect of the line capacitance of long control lines on the func-tion of the relay contacts.

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Cable Assembly Cable type Conductor cross-section

Max. length

Power supply Unshielded 1.5 mm -

Voltage measurement UI 1/UI 3 Shielded 2.5 mm -

Current measurement UI 1/UI 3 Unshielded -

Signal inputs DIO28-15/DIO42-20

Shielded 1.5 mm2 400 m (

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Wiring requirement of installation site

Note the following when selecting the installation site: The system's overvoltage protection must be effective.

The system's ground connection must comply with all technical regula-tions.

Separate system parts must be joined by a potential equalization.

The device and its wiring must be at least 10 m away from circuit-break-ers, load disconnectors and busbars.

Wiring requirement of operating site

Note the following when wiring the operating site:

The connection cables must be laid in metallic cable ducts with a groundconnection.

Do not route lines which cause interference (for example power lines)and lines susceptible to interference (for example signal lines) in thesame cable duct.

Maintain a gap of at least 100 mm between lines causing interferenceand those susceptible to interference.

Figure 16: Recommended wiring

1 Cable duct for lines causinginterference 3 Cable duct for lines suscepti-ble to interference

2 Interference-causing line (e.g.power line)

4 Line susceptible to interfer-ence (e.g. signal line)

Short-circuit and ground reserve lines.

The device must never be connected using multi-pin collective cables.

Signal lines must be routed in a shielded cable.

The individual conductors (outgoing conductors/return conductors) inthe cable core must be twisted in pairs.

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The shield must be fully (360) connected to the device or a nearbyground rail.

Using "pigtails" may limit the effectiveness of the shielding. Connect close-fitting shield to cover all areas.

Figure 17: Recommended connection of the shielding

1 Connection of the shieldingusing a "pigtail"

2 Shielding connection coveringall areas

Wiring requirement in control cabinet

Note the following when wiring the control cabinet:

The control cabinet where the device will be installed must be preparedin accordance with EMC requirements:

Functional division of control cabinet (physical separation)

Constant potential equalization (all metal parts are joined)

Line routing in accordance with EMC requirements (separation oflines which cause interference and those susceptible to interfer-ence)

Optimum shielding (metal housing)

Overvoltage protection (lightning protection) Collective grounding (main grounding rail)

Cable bushings in accordance with EMC requirements

Any contactor coils present must be interconnected

The device's connection cables must be laid in close contact with thegrounded metal housing or in metallic cable ducts with a ground con-nection.

Signal lines and power lines/switching lines must be laid in separate ca-ble ducts.

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The device must be grounded at the screw provided, the protectivegrounding connection, using a ground strap (cross-section min. 8 mm).

Figure 18: Ground connection

Information about shielding the CAN bus

In order for the CAN bus to operate faultlessly, you have to connect theshielding using one of the following variants. If you are not able to use any ofthe variants detailed below, we recommend using fiber optic cables. Fiberoptic cables decouple the voltage regulators and are not sensitive to electro-

magnetic interferences (surge and burst).

NOTICE

Damage to the device

If you connect the CAN bus cable to devices with different potential, currentmay flow over the shielding. This current may damage the device.

Connect the devices to a potential compensation rail to compensate forpotential.

If both devices have different potentials, only connect the CAN bus ca-ble's shielding to one device.

Variant 1: The connected devices share the same potential

If the devices to be connected share the same potential, proceed as follows:

1. Connect all devices to a potential compensation rail to compensate forthe potential.

2. Connect CAN bus cable's shielding to all connected devices.

Variant 2: The connected devices have different potential

Note that the shielding is less effective with this variant.

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If the devices to be connected have different potential, proceed as follows:

Connect CAN bus cable's shielding to just onedevice.

Connecting shielding

Connect the shielding for the CAN bus cable to the 9-pin D-sub connector:

Figure 19: Connection of CAN bus cable shielding to the 9-pin D-sub connector

Connecting cables to the system periphery

To obtain a better overview when connecting cables, only use as manyleads as necessary.

To connect cables to the system periphery, proceed as follows:

Use only the specified cables for wiring. Note the cable recommenda-tion.

Connect the lines to be wired to the device to the system periphery asshown in the connection diagrams supplied.

Wiring device

To obtain a better overview when connecting cables, only use as manyleads as necessary.

To wire the device, proceed as follows:

Note the connection diagram.

Use only the specified cables for wiring. Note the cable recommenda-tion.

Wire the lines to the system periphery [36].

1. Strip insulation from lines and leads.

2. Crimp stranded wires with wire end sleeves.

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3. Guide leads into corresponding connector terminals and fasten using ascrewdriver.

Figure 20: Example: Connector for voltage measurement

Figure 21: Example: Connector for current measurement

4. Plug connectors into the correct slots.

Checking functional reliability

To ensure that the device is wired correctly, check its functional reliability.

NOTICE

Damage to device and system periphery

An incorrectly connected device can lead to damages in the device and sys-tem periphery.

Check the entire configuration before commissioning.

Prior to commissioning, be sure to check the actual voltage and operat-ing voltage.

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Check the following:

Once you have connected the device to the grid, the display shows theMR logo and then the operating screen.

The green Power indicatorLED on the top left of the device's front panellights up.

The device is fully mounted and can be configured. The actions required forthis are described in the following chapter.

Mounting terminating resistor of CAN bus

If you want to operate the TAPCON in parallel operation, you need tomount a 120 terminating resistor at both ends of the CAN bus. Use theplug connector with terminating resistor provided as an option.

Figure 22: Terminating resistor of CAN bus

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Commissioning

To commission the device, you need to set several parameters and performfunction tests. There are 2 options available for this:

Commissioning wizard (TILA TAPCON Interactive Launch Assist)

Setting the parameters manually

These are described in the following sections.

NOTICE

Damage to device and system periphery

An incorrectly connected device can lead to damages in the device and sys-tem periphery.

Check the entire configuration before commissioning.

Prior to commissioning, be sure to check the actual voltage and operat-ing voltage.

Commissioning wizard

If you want the TAPCON to help when setting the relevant parameters, youcan use the commissioning wizard TILA (TAPCON Interactive Launch As-sist). The commissioning wizard provides a choice of parameters you canconfigure in order.

A detailed description of each of the parameters can be found in the Func-tions and settings [50] chapter.

To call up the commissioning wizard, you will need the necessary accessrights [112].

When in delivery status, you can log in as the administrator as follows:

User name: admin

Password: admin

To set the parameters with the help of the commissioning wizard, proceed

as follows:1. Log in as user with the access rights required.

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2. Go to Settings > Commissioning assistant.

Figure 23: Calling up commissioning wizard

3. Press the Nextbutton to launch the commissioning wizard.

4. Follow the on-screen instructions.

Once you have entered all of the parameters relevant to commissioning,continue with the function test [44].

Setting parameters

To commission the TAPCON, you must set the following parameters. Formore detailed information about the parameters, refer to the respective sec-tions.

To set the parameters, you need the necessary access rights [112].


User name: admin

Password: admin

Setting the language

You can use this parameter to set the display language for the device. Thedevice comes with a maximum of 4 languages. The following languages areavailable:

English Italian*

German Portuguese*

French* Russian*

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Spanish* Chinese*

Korean*

*) Language is available as an option

To set the language, proceed as follows:

1. Press the Languagebutton on the status bar.

Figure 24: Setting the language

2. Select the language you want from the list field.


The "Restart device" dialog appears.

4. Restart the device to apply the changed language setting.

Setting date and time

You can set the date and time in the following ways:

Setting manually

Time synchronization via control system (SCADA)

Time synchronization via SNTP time server

If you are using a control system, the device automatically synchronizes thedate and time with the control system. If you want to use an SNTP time serv-

er, you must set the following required parameters. Observe the informationprovided in the Time synchronization [109] section.

If you would like to set the date and time manually, you have to enter the val-ues in the following formats:

Date Time

DD.MM.YYYY HH:MM

Table 8: Formats

The time does not switch from daylight saving time to standard time andback automatically.

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Proceed as follows to set the date and time manually:

1. Go to Settings > Date and Time.

Figure 25: Setting date and time

2. Enter date and time.


Setting further parameters

Set further parameters to commission the device. More detailed information

about each of the parameters can be found in the Functions and settings[50] chapter.

Setting transformer data

Set the transformer data and phase difference of the current transformer andvoltage transformer:

1. Set measured value display [67].

2. Set primary transformer voltage [61].

3. Set secondary transformer voltage [61].

4. Set primary transformer current [61].

5. Set secondary transformer current [62].6. Set the current-transformer circuit, voltage-transformer circuit and phaseangle correction [62].

Setting control parameters

Set the following control parameters:

1. Set desired value 1 [52].

2. Set the bandwidth [57].

3. Set delay time T1 [58].

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Setting R&X compensation (optional)

If you need R&X compensation [72], you must set the parameters re-quired for this:

1. Select the "R&X compensation" compensation method.

2. Set the line data for the ohmic resistance load.

3. Set the line data for the inductive resistance load.

4. Set the line length.

Setting Z compensation (optional)

If you need Z compensation [74], you must set the parameters requiredfor this:

1. Select the "Z compensation" compensation method.2. Set voltage increase.

3. Set voltage limit value.

Setting parallel operation (optional)

If you need parallel operation, you must set the parameters required for this.You will find more information about parallel operation in the "Parallel opera-tion" [77] section:

1. Assign CAN bus address.

2. Set parallel operation method to circulating reactive current method.

3. Set circulating reactive current sensitivity.4. Set circulating reactive current blocking limit.

5. Activate parallel operation.

Setting tap position capture via analog input (optional)

If you want to capture the tap position via the analog input, you must set theparameters required for this:

Capture tap positions via analog input [76].

All parameters relevant to commissioning are entered. Continue with thefunction tests.

Setting control system protocol (optional)

If you need a control system protocol [93], you must set the parametersrequired for this. More detailed information about this can be found in the en-closed supplement for the control system protocol description.

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Function tests

Before switching from manual mode to auto mode, Maschinenfabrik Rein-hausen recommends carrying out function tests. These function tests are de-scribed in the following sections. Note the following points for all functiontests:

You must ensure that REMOTE mode is disabled before you can controlthe on-load tap-changer manually in manual mode.

You can only activate the on-load tap-changer manually in manual

mode using the and keys.

You have to be logged in to the device as a user with a parameter con-figurator or administrator user role.


User name: admin

Password: admin

During the function test, you must set the most important parameters. Detailson the parameters listed can be found in the Functions and settings [50]chapter.

Testing a control function

This section describes how you can check the device's control functions:

Supply voltage must be present.

1. Press to select manual mode.

2. Set transmission ratio for voltage transformer, current transformer andtransformer circuit.

3. Measure actual voltage and compare with the measured value dis-played on the device's main screen.

4. Select the Measured valuesmenu item to display the operating valuesfor current and power and compare them with the values of the opera-tion measurement instruments.

5. Control the on-load tap-changer manually with the or keysuntil the measured voltage Uactualreaches the desired voltage Udesired(de-

sired value 1).6. Set desired value 1 to the value you want [52].

7. Set bandwidth depending on step voltage [57].

8. Set delay time T1 to 20 seconds [58].

9. Set time response T1 to linear [58].

10. Press to raise the on-load tap-changer 1 step.

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11. Press to select auto mode.

If the actual voltage is outside the bandwidth, the device returns theon-load tap-changer to the original operating position after 20 sec-onds.


13. Press to lower the on-load tap-changer 1 step.


If the actual voltage is outside the bandwidth, the device returns theon-load tap-changer to the original operating position after 20 sec-onds.

15. Press to select manual mode.16. Set delay time T2 to 10 seconds and activate it [59].

17. Press twice to raise the on-load tap-changer 2 steps.


If the actual voltage is outside the bandwidth, after 20 seconds thedevice lowers the on-load tap-changer one step and after another10 seconds another step.


20. Set delay time T1 [58] and delay time T2 [59] to the desired

value.We recommend a temporary setting of 100 seconds for delay time T1whencommissioning the transformer. Depending on the operating conditions, youcan also specify the delay time following a longer observation period. In thisregard, it is useful to register how the actual voltage progresses and thenumber of tap-change operations per day.

Checking parallel operation

This section describes how you can run the function test for parallel opera-tion.

To obtain perfect functioning in parallel operation, the TAPCON must becommissioned in simplex mode. Make sure that the conditions below havebeen fulfilled.

All TAPCON units are set to the same operating parameters for "de-sired value" [52] and "delay time T1" [58]

"Activate parallel operation" [78] parameter set to ON

Parallel operation method [78] selected.

A different CAN bus address [81] ( 0) is set for all TAPCON

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Requirements

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The same parallel operation group input is set for all TAPCON

Checking circulating reactive current sensitivity

This section describes how to run the function test for circulating reactivecurrent sensitivity.

Select the "Circulating reactive current" parallel operation method[78].

Set circulating reactive current sensitivity to a value of 0% [78].

1. Adjust both transformers in simplex mode to the same actual voltage bymeans of the on-load tap-changer.

2. Connect the transformers in parallel and enable the parallel control.

The two TAPCON units must still be in a state of equilibrium.

The status display in the Parallel operationmenu lights up blue.

3. On one of the two transformers, raise the tap position of the on-load tap-changer by one setting; on the second transformer, lower the tap posi-tion of the on-load tap-changer by one setting.

The two TAPCON units must still be in a state of equilibrium.

4. Adjust the circulating reactive current sensitivity until the result displayedin the Measured valuesmenu item exceeds the set value for the band-width by approx. 0.2% to 0.3%.

5. Set the value given in the previous step for all TAPCON units in paral-lel operation.

6. Press to select auto mode for all TAPCON units. All of the TAPCON units return the on-load tap-changer units to

the original tap positions.

The function test for circulating reactive current sensitivity is complete.

If the earlier tap positions are not reached, increase the parameter value ofthe circulating reactive current sensitivity.

If one of the two on-load tap-changer units switches one or more tap posi-tions higher and the other switches the same amount lower, you need to re-duce the parameter value of the circulating reactive current sensitivity.

After you have set the "circulating reactive current sensitivity" parameter,

continue with the function test for the circulating reactive current blockinglimit described in the next section.

Also refer to

2 Display elements [18]

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Testing the circulating reactive current blocking limit

This section describes how to run the function test for circulating reactivecurrent blocking.

Set the circulating reactive current blocking limit to a value of 20%[78].

1. Press on a TAPCON to select manual mode.

2. Using manual control, adjust the relevant motor-drive unit upwards (forexample 1 - 2 steps) by the maximum permitted tap difference in operat-ing positions between the parallel operating transformers.

When setting the circulating reactive current blocking in the following proc-ess step, wait approximately 2 to 3 seconds between the individual steps.

3. In the Parallel operation > Parallel operation methodmenu item, setthe circulating reactive currentparallel operation method.

4. Reduce the circulating reactive current blocking limit parameter from theset value of 20% in steps of 1% until the message Circulating reactivecurrent blocking limitexceededis displayed.

Any further regulation is blocked.

After the set delay time for the parallel operation error message haselapsed, the circulating reactive current blocking message is dis-played

5. Increase the circulating reactive current blocking limit parameter againuntil the message Circulating reactive current limit exceededdisap-pears.


The motor-drive unit automatically returns to the original operatingposition.

7. Set the value determined for the "circulating reactive current blockinglimit" for the TAPCON units in parallel operation as well.

If one TAPCON or all of the TAPCON units indicate Circulating reactivecurrent blocking limit exceededeven though the control inputs are correctlyconnected for all TAPCON units, all of the TAPCON units block.

This could be due to various causes. Further information is given in thechapter Troubleshooting [127].

The function test for the circulating reactive current blocking limit is com-plete.

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Checking tap synchronization method

This section describes how to run the function test for tap synchronization(master/follower).

In parallel operation in accordance with the Automatic tap synchroniza-tionmethod, the tap positions of the transformers running in parallel arecompared. It is therefore necessary that the transformers have the sameposition designation and that the Raiseand Lowersignals produce thesame voltage change in all transformers.

NOTICE

Damage resulting from formation of circulating reactive current

If the parameters are not set correctly, damage may result from the forma-tion of circulating reactive current and the resulting overload of transmission

lines and transformers. Check transformer type plate.

Set TAPCON parameters in accordance with the configuration of thetransformers.

Before starting the function test, you must carry out the following steps:

1. Assign the master function to one TAPCON [79].

2. Assign the follower function to the other TAPCON units.

3. Compare the tap position displays of master and follower . Allof the TAPCON units must display the same tap position. If this is notthe case, switch all TAPCON units to the same tap position.

Figure 26: Comparing the tap position

1 Master 3 Tap position display

2 Follower

To perform the function test, proceed as follows:

1. Press on the follower to select manual mode.

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2. If necessary, set the follower tapping direction.

3. Press on the master to select manual mode.

4. Press or on the master to manually change the tap posi-tion.

5. Press on the follower to select auto mode.

The follower switches into the same tap position as the master.

6. Press on the master to select auto mode.

7. Press on the follower to select manual mode.

8. Press or on the follower to manually change the tap posi-

tion. After expiry of the set delay time for parallel operation errors, there

is a tap difference to follower on the master.

9. Press several times on the follower to manually increase the tapposition by the number of permitted steps ("Maximum permitted tap dif-ference") and then one more step.

After expiry of the set delay time for parallel operation errors, thereis a tap difference to follower on the master.

After expiry of the set delay time for parallel operation errors, thereis a tap difference to master on the follower.

10. Press on the follower to select auto mode. There is no response. All devices remain blocked.

11. Press on the master and follower to select manual mode.

12. Press or on the master and follower to manually set thedesired step.

The function tests for the tap synchronization method are complete.

Installation and commissioning of the device is complete.

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7 Functions and settings


Functions and settings

This chapter describes all the functions and setting options for the device.

Control

All of the parameters required for the regulation function are described in thissection. For voltage regulation, you can set the following parameters:

Desired values

Desired value 1

Desired value 1...3 (optional)

Desired value 1...5 (optional)

Selecting desired value (optional) Min./max. desired value setting (optional)

Active power-dependent adjustment of desired voltage value TDSC (op-tional)

Bandwidth

Delay time T1

Time response T1

Delay time T2

Remote behavior

Figure 27: Setting control parameters

For voltage regulation, you can set delay time T1 and also delay time T2.The following sections describe how the regulation function responds in bothcases:

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Behavior only with delay time T1

If the measured voltage Uactual is within the set bandwidth , no controlcommands are issued to the motor-drive unit for the tap-change operation.Control commands will also not be issued to the motor-drive unit if the meas-

ured voltage returns to the tolerance bandwidth within the set delay time

T1 . However, if the measured voltage deviates from the set bandwidth for

a long period , a tap-change command occurs after expiration of theset delay time T1. The on-load tap-changer carries out a tap-change in araise or lower direction to return to the tolerance bandwidth.

Figure 28: Behavior of the regulation function with delay time T1

1 + B %: Upper limit 4 Set delay time T1

2 Udesired: Desired value 5 Uactual: Measured voltage

3 - B %: Lower limit 6 B%: Tolerance bandwidth

A Uactualis outside the band-width. Delay time T1 starts.

B Uactualis within the bandwidthbefore delay time T1 is com-plete.

C Uactualis outside the band-

width. Delay time T1 starts.

D Uactualis still outside the band-

width when delay time T1 iscomplete. Tap-change opera-tion is initiated.

Behavior with delay times T1 and T2

Delay time T2 can be used to correct major control deviations more quickly.Ensure that you set a lower value in the "Delay time T2" parameter than inthe "Delay time T1" parameter.

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If the measured voltage Uactual deviates from the set bandwidth for a long

period , a control impulse is output to the motor-drive unit after the set de-

lay time T1 . If the measured voltage Uactualis still outside the bandwidth,

delay time T2 starts once delay time T1 is complete. Once delay time T2is complete, a control impulse is again output to the motor-drive unit for the

tap change to return to the tolerance bandwidth.

Figure 29: Behavior of the regulation function with delay times T1 and T2

1 + B %: Upper limit 4 Set delay times T1 and T2.

2 Udesired: Desired value 5 Uactual: Measured voltage

3 - B %: Lower limit 6 B%: Tolerance bandwidth

A Uactualis outside the band-width. Delay time T1 starts.

B Delay time T1 complete. Tapchange triggered.

C Delay time T2 complete. Tapchange triggered.

The following sections describe how to set the relevant control parameters.

Desired values

You can use the "Desired value" parameter to set up to 5 desired voltagevalues Udesireddepending on the equipment. The device always uses one ofthe set desired values for control. You can define the desired value used forcontrol by means of the "Select desired value" parameter.

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The device provides the following ways of changing the desired voltage val-ue during operation:

Using the operating screen in the control parameters menu item or theweb-based visualization

Desired value selection using binary inputs (optional)

Using an analog interface (020 mA, 420 mA or 010 V) dependingon the equipment (optional)

Desired values set in kV refer to the primary voltage of the voltage trans-former. Desired values set in V refer to the secondary voltage of the voltagetransformer. You

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