Laboratory Name Accreditation Standard Certificate Number ...

S.No Discipline / Group Product / Material ofTest

Specific TestPerformed

Test MethodSpecificationagainst which testsare performed

Range of Testing/Limits of Detection

1530 ELECTRICAL-CABLES & WIRES

Winding Wires forsubmersible motors -Part 4 Specification forindividual wires:Section 3 Polyesterand PolypropyleneInsulated WindingWires

Water Absorption Test(Gravimetric)

IS 8783 (Part 4, Sec 3):1995

0 mg/cm² to 20 mg/cm²

1531 ELECTRICAL-INDUCTORS &TRANSFORMERS

Dry-Type PowerTransformers

Winding Resistance IS 11171: 1985 1.9999 m ohm to1.9999 K ohm


Dry-Type PowerTransformers upto 1.25MVA & 11 kV

Short CircuitImpedance and LoadLoss

IEC 60076-11: 2005 1V, 1A, 1W to 900V,100A, 300 kW



No Load Loss andCurrent

IS 11171: 1985 1 V, 500 mA, 1 W to900V, 20A, 18 kW




IEC 60076-11: 2005 1V, 500 mA, 1W to900V, 20A, 18 kW


Dry-Type PowerTransformers upto 11kV, 1250 kVA


IS 11171: 1985 1V, 1A, 1W to 900V,100A, 300 kW


Dry-Type PowerTransformers upto 11kV, 1250 kVA

Temperature Rise IS 11171: 1985 Ambient to 100 oC


Dry-Type PowerTransformers upto 33kV

Lightening Impulsevoltage withstand

IS 11171: 1985 Qualitative

This is annexure to 'Certificate of Accreditation' and does not require any signature.

Laboratory Name RAJASTHAN TEST & RESEARCH CENTRE, PLOT NO. 296, SECTOR-7, GURGAON,HARYANA, INDIA

Accreditation Standard ISO/IEC 17025:2017

Certificate Number TC-5073 Page No. : 248 / 256

Validity 08/12/2018 to 07/12/2020 Last Amended on 12/02/2019






Dry-Type PowerTransformers upto 33kV

Separate Sourcevoltage withstand(Primary & SecondaryWinding)

IS 11171: 1985 3 kV to 75 kV


Dry-Type PowerTransformers upto 33kV & 1250 kVA

Induced over voltagewithstand

IS 11171: 1985 1 V to 1000 V


Dry-Type PowerTransformers upto 33kV & 1250 kVA

Voltage ratio and checkof phase displacement

IS 11171: 1985 2 to 200


Dry-type transformers Induced over voltagewithstand

IEC 60076-11: 2018 1 V to 1000 V


Dry-type transformers Lightening Impulsevoltage withstand

IEC 60076-11: 2018 Qualitative


Dry-type transformers Separate Sourcevoltage withstand(Primary & SecondaryWinding)

IEC 60076-11: 2018 3 V to 75 kV


Dry-type transformersupto 1.25 MVA & 33 kV


IEC 60076-11: 2005 2 to 200


Dry-type transformersupto 1.25 MVA & 33 kV

Winding Resistance IEC 60076-11: 2005 1.9999 m ohm to1.9999 K ohm


Dry-type transformersupto 11 kV, 1250 kVA

Temperature Rise IEC 60076-11: 2005 -10 oC to 100 oC











Insulating Oils Oil Breakdown Voltage IS 6792: 2003 20 KV to 100 kV


Outdoor type three-phase distributiontransformers up to andincluding 100 kVA 11kV

Air Pressure IS 1180 (Part 2): 1989 0 kg/cm2 to 1.06kg/cm2


Outdoor type three-phase distributiontransformers up to andincluding 100 kVA 11kV, Part 2: Sealed type

Over Fluxing IS 1180 (Part 2): 1989 500 mA, 1 V to 20 A,1000 V


Outdoor/Indoor TypeOil ImmersedDistributionTransformer upto 1.25MVA & 33 kV

Air Pressure CBIP Manual oftransformer-295: 2006

0 kg/cm2 to 1.06kg/cm2



Air Pressure CBIP Maual ofTransformer 317: 2013

0 kg/cm2 to 1.06kg/cm2



Lightning Impulsevoltage withstand

IEEE 57.12.90: 2015 Qualitative












Magnetic Balance CBIP Publication -Manual of TransformerGP-295: 2006

300 mV to 750 V



Magnetic Balance CBIP Manual ofTransformer GP-317:2013

300 mV to 750 V



Unbalance Current CBIP Manual ofTransformer -317: 2013

60 mA to 20 A



Unbalance Current CBIP Manual oftransformer 275: 1999

60 mA to 20 A



Vacuum Test up to 200kVA

CBIP Manual ofTransformer -317: 2013

0 mm Hg to -760 mmHg


Outdoor/Indoor TypeOil ImmersedDistributionTransformer upto 200kVA & 33 kV

Vacuum Test CBIP Manual ofTransformer 295: 2006

0 mm Hg to -760 mmHg











Outdoor/Indoor TypeOil ImmersedDistributionTransformers Up toand Including 1250kVA, 11 kV


IS 1180 (Part 1): 2014 1V, 1A 1W to 900V,100A, 300 kW


Outdoor/Indoor TypeOil ImmersedDistributionTransformers Up toand Including 1250kVA, 11 kV

Temperature Rise IS 1180 (Part 1): 2014 ambient to 100 oC


Outdoor/Indoor TypeOil ImmersedDistributionTransformers Up toand Including 1250kVA, 33kV

Air Pressure IS 1180 (Part 1): 2014 0 kg/cm2 to 1.06kg/cm2


Outdoor/Indoor TypeOil ImmersedDistributionTransformers Up toand Including 1250kVA, 33kV


IS 1180 (Part 1): 2014 1V, 500 mA, 1W to205V, 20A, 18 kW


Outdoor/Indoor TypeOil ImmersedDistributionTransformers Up toand Including 2 500kVA, 33 kV

Winding Resistance IS 1180 (Part 1): 2014 1.9999 m ohm to1.9999 K ohm











Outdoor/Indoor TypeOil ImmersedDistributionTransformers Up toand Including 2 500kVA, 33kV


IS 1180 (Part 1): 2014 1 V to 1000 V



Insulation Resistance IS 1180 (Part 1): 2014 1 M ohm to 5000 Mohm



Oil Leakage Test IS 1180 (Part 1): 2014 0 kg/cm2 to 1.06kg/cm2



Over Fluxing IS 1180 (Part 1): 2014 500 mA to 20 A




IS 1180 (Part 1): 2014 3 kV to 75 kV












Vacuum Test up to 200kVA

IS 1180 (Part 1): 2014 0 mm Hg to -760 mmHg




IS 1180 (Part 1): 2014 2 to 200


Power transformer upto33 kV


IS 2026 (Part 1): 2011 1 V to 1000 V


Power transformers Separate Sourcevoltage withstand(Primary & SecondaryWinding)

IEC 60076-1: 2011 3 V to 75 kV


Power transformers Short CircuitImpedance and LoadLoss

IS 2026 (Part 1): 2011 0 V to 1008 V


Power transformers Winding Resistance IS 2026 (Part 1): 2011 1.9999 m ohm to1.9999 K ohm


Power transformers Winding Resistance IEC 60076-1: 2011 1.9999 m ohm to1.9999 K ohm


Power transformersupto 33 kV

Insulation Resistance IS 60076-1: 2011 1 M ohm to 5000 Mohm











Power transformersupto 1.25 MVA & 33 kV


IS 2026 (Part 1): 2011 1V, 500 mA, 1W to900V, 20A, 18 kW


Power transformersupto 11 kV & 1250 kVA


IEC 60076-1: 2011 1V,1A, 1W to 900V,100A, 300 kW


Power transformersupto 11 kV & 1250 kVA

Temperature Rise IEC 60076-2: 2011 Ambient to 100 oC


Power transformersupto 11 kV, 1250 kVA

Temperature Rise IS 2026 (Part 2): 2011 Amibent oC to 100 oC




IEC 60076-1: 2011 1 V to 1000 V



Insulation Resistance IS 2026 (Part 1): 2011 1 M ohm to 5000 Mohm




IEEE 57.12.60: 2009 Qualitative


Power Transformersupto 33 kV


IS 2026 (Part 3): 2009 Qualitative




IEC 60076-3: 2013 Qualitative













IS 2026 (Part 1): 2011 3 kV to 75 kV




IS 60076-1: 2011 2 to 200


Power transformersupto 33 kV & 1.25 MVA


IEC 60076-1: 2011 1V, 500 mA, 1W to900V, 20A, 18 kW


Power transformers, Voltage ratio and checkof phase displacement

IS 2026 (Part 1): 2011 2 to 200






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