Transformer Lightning Impulse Test System – High Voltage 1.2/50 μs Impulse Generator for Power Transformer Dielectric Withstand, Insulation Performance and Type Testing

The Transformer Lightning Impulse Test System is specially designed for evaluating the insulation performance of power and distribution transformers under standardized lightning impulse voltage.

Transformer impulse testing places specific demands on the generator, test circuit, measuring system, waveform control and laboratory layout.

• Lightning impulse withstand test
• Full-wave impulse test
• Chopped-wave test
• Switching impulse test
• Transformer insulation evaluation
• Winding impulse response testing
• Waveform measurement
• Test waveform recording
• Automatic parameter calculation
• Test report generation

• Power transformers
• Distribution transformers
• Dry-type transformers
• Oil-immersed transformers
• Step-up transformers
• Step-down transformers
• Special transformers

High test voltage

The generator must provide sufficient voltage and energy for the transformer under test.

Large test object capacitance

The generator and wave-shaping network must be matched to the test object.

Waveform distortion

The measuring and generating circuit must be designed to achieve the required impulse waveform.

Laboratory safety

The complete system needs appropriate grounding, interlocking, discharge and safety protection.

Can you design the generator according to transformer capacity?

Yes. Generator parameters should be selected based on transformer voltage class, insulation level, test standard, capacitance and laboratory layout.