Testing & quality assurance

Rigorous testing. Assured performance.

Every Powertech product undergoes stringent testing at our in-house laboratory to ensure it meets national and international standards for safety, reliability and performance.

State-of-the-art

In-house testing lab

Our laboratory is equipped for the full routine and type test schedule — from winding resistance and ratio checks through applied and induced voltage withstand tests.

IS 1180

Oil-immersed distribution

IEC 60076

Power transformers

IEC 62271

HV switchgear

IEC 61439

LV assemblies

Laboratory capability

Four pillars of verification

Routine & type testing

All units tested as per IS / IEC standards for complete performance verification.

High voltage testing

Withstanding voltage and insulation tests for maximum safety.

Accuracy calibration

Precision calibration to ensure reliable measurement accuracy.

Insulation testing

Comprehensive insulation resistance and dielectric tests.

Transformers

Routine test schedule

All transformers are tested as per IS 1180 & IEC 60076 standards.

Measurement of winding resistance
Voltage ratio, polarity & vector group test
No load loss & no load current test
Load loss & impedance voltage test
Applied voltage withstand test
Induced over voltage withstand test
Insulation resistance (IR) test
Oil BDV test
Magnetic balance test
Functional checks on accessories

Panels

Every panel undergoes

Each panel is built with precision and tested for performance before it leaves the factory.

IR test

Insulation resistance test at 1000 V DC to ensure high insulation integrity.

HV withstand test (2.5 kV)

High voltage test applied to ensure dielectric strength and operator safety.

Earth continuity

Continuity test on the earth circuit to ensure effective earthing throughout.

Wiring continuity

All control and power wiring continuity verified for accuracy and reliability.

Functional testing

Complete functional testing of all incomers, feeders and interlocks.

Final inspection

Visual inspection, label verification and workmanship check before dispatch.

Our assurance

Quality is not an act, it is our habit.

100% tested

Every unit is fully tested before dispatch — no exceptions, no sampling.

Certified quality

Built as per national and international standards with full traceability.

Delivered ready-to-install

Tested, verified and dispatched for immediate installation on site.

Standards

Manufactured to the letter of the code

IS 1180	Outdoor type oil-immersed distribution transformers
IS 2026 / IEC 60076	Power transformers
IS 11171	Dry type power transformers
IEC 62271	High voltage switchgear and controlgear
IEC 61439 / IS 8623	Low voltage switchgear & controlgear assemblies
IEC 60947	Low voltage switchgear and controlgear
IS 2705 / IS 3156	Current transformers / voltage transformers