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Gaodian Electric Power Co., Ltd

High Voltage Test Equipment

Lightning Impulse Test System

Impulse voltage generator producing standard lightning and switching impulse waveforms for insulation coordination and type tests on transformers and other high-voltage equipment.

Lightning Impulse Test System
Standards
IEC 60076-3 · GB/T 1094.3
Applications
Type test lab · Research institute · HV equipment factory

Overview

Impulse voltage generator producing standard lightning and switching impulse waveforms for insulation coordination and type tests on transformers and other high-voltage equipment.

Applicable Standards

  • IEC 60076-3
  • GB/T 1094.3

Application Scenarios

Type test labResearch instituteHV equipment factory

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Frequently Asked Questions

What is a lightning impulse test on a transformer?
It applies a standard impulse waveform — typically 1.2/50 microseconds for a full lightning impulse — to the transformer terminals to verify that the insulation withstands transient overvoltages from lightning strikes and switching operations.
Is this a type test or a routine test?
Lightning impulse testing is a type test. It is performed in type test laboratories, research institutes and HV equipment factories, not as part of routine production testing.
Which standard specifies the impulse test?
Impulse testing of power transformers is specified in IEC 60076-3 and GB/T 1094.3, which define the waveform, test sequence and failure criteria.

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