High Voltage Lightning Impulse Generator for Power Transformer Testing Transformer Impulse Withstand Test System for Insulation Performance Evaluation

The High Voltage Lightning Impulse Generator for Power Transformer Testing is designed to evaluate transformer insulation performance under specified impulse voltage conditions.

Power transformers can experience transient overvoltages during service. Lightning impulse testing helps manufacturers verify insulation withstand performance and assess compliance with applicable product specifications and test standards.

The system can be configured for power transformers, distribution transformers, reactors, and other compatible electrical equipment. Its configuration depends on the transformer insulation level, winding arrangement, test voltage, capacitance, required waveform, and test procedure.

A complete transformer impulse test system may include a multistage impulse generator, charging unit, wave-shaping resistors, chopping device where required, high-voltage measuring divider, digital transient recorder, and control system.

• Configurable voltage and energy ratings.

• Full-wave lightning impulse testing.

• Optional chopped-wave testing.

• Digital waveform recording and analysis.

• Adjustable charging parameters within the equipment's operating range.

• Integrated measurement and control options.

• Customized connections and accessories.

• Engineering support for transformer test laboratory projects.

Transformer Lightning Impulse Withstand Testing: Applies the specified impulse voltage to assess the insulation performance of compatible transformer windings and insulation structures.

Chopped-Wave Testing: Supports specified chopped-wave tests when the applicable procedure requires the corresponding equipment configuration.

Impulse Waveform Recording: Records the applied waveform for evaluation of peak voltage and timing parameters.

Test Data Management: Compatible software can store and export waveform records to support quality documentation.

• Power transformer manufacturing plants

• Distribution transformer factories

• Large transformer testing laboratories

• Transformer type-test facilities

• Electrical equipment research centers

• Third-party testing laboratories

• Utility acceptance testing projects

Difficulty selecting the correct generator rating: Transformer test requirements vary according to the insulation level and test procedure. Review the transformer's specifications before selecting the equipment.

Uncertain waveform performance: The generator, wave-shaping network, test object, connections, and measurement arrangement all affect waveform performance.

Incomplete scope of supply: Confirm whether the quotation includes the chopping device, measuring divider, digital recorder, software, and required accessories.

Need to document test results: Ask about waveform storage, report generation, data export, and measurement calibration.

Q1: Can this system test both distribution and power transformers?

Yes, provided the selected configuration meets the test voltage, energy, waveform, and measurement requirements of each transformer.

Q2: Is a chopped-wave device always necessary?

No. Required waveforms depend on the applicable standard, transformer specification, and agreed test program.

Q3: What information is needed for a quotation?

Provide the transformer voltage class, transformer type, required impulse voltage, applicable standard, waveform requirements, and preferred scope of supply.

Q4: Can the system record the impulse waveform?

A suitable digital transient recorder can capture and display the waveform. Confirm the included recording and analysis functions in the quotation.

Q5: Can you supply a complete transformer impulse test system?

A complete solution can be configured with the generator, charging system, wave-shaping components, measuring divider, recorder, and control cabinet.

Share your transformer specifications and testing requirements. We can review the required generator capacity, waveform configuration, measurement system, and accessories before preparing a technical proposal.