2400kV High Energy Lightning Impulse Generator for EHV and UHV Testing 240kJ Impulse Voltage Test System for Large Power Transformers, GIS and High Voltage Laboratories

The 2400kV High Energy Lightning Impulse Generator is a specialized testing solution intended for demanding high-voltage laboratory applications. A configuration rated at 2400kV and 240kJ can be considered for suitable extra-high-voltage insulation testing projects where the required peak voltage, stored energy, waveform performance, and test-object loading are compatible with the equipment design.

This type of impulse generator is intended for professional testing facilities working with large power transformers, high-voltage insulation systems, selected GIS equipment, bushings, insulators, and other electrical apparatus requiring high-amplitude impulse voltage testing.

The generator uses a multistage impulse circuit and associated charging and wave-shaping components to produce the specified impulse voltage waveform. The complete installation may include a control room, high-voltage test area, impulse measuring divider, transient recorder, safety interlocks, grounding system, and specialized test connections.

The final system configuration must be verified against the actual test object and applicable test specification.

• High-voltage configuration for demanding laboratory applications.
• High stored-energy capacity for compatible test requirements.
• Multistage impulse generation architecture.
• Configurable lightning impulse waveform.
• Optional chopped-wave and switching impulse functions.
• Digital waveform recording and measurement.
• Customized control and safety arrangements.
• Engineering support for complete high-voltage laboratory projects.

Generates the specified full-wave lightning impulse for insulation withstand evaluation.

A compatible chopping system can be included when the test program requires chopped impulse waveforms.

A switching impulse configuration may be provided for suitable applications when specified in the project requirements.

A suitable measuring divider and transient recording system are required to capture and evaluate impulse voltage parameters.

System engineering considers the electrical and physical characteristics of the test object, including capacitance, connection geometry, clearances, and required waveform performance.

• Extra-high-voltage power transformer testing
• Selected gas-insulated switchgear testing
• High-voltage bushing and insulator testing
• High-voltage insulation research
• National and industrial electrical testing laboratories
• Power equipment manufacturer type-test facilities
• High-voltage research and development centers

1. Rated voltage and stored energy

The rated voltage and energy must be considered together with the test object and required test conditions. A high voltage rating alone does not guarantee suitability for every load.

2. Waveform performance under load

Request technical information demonstrating waveform performance under representative loading conditions, where available.

3. Measuring system compatibility

The measuring divider and recording equipment must have appropriate voltage ratings, bandwidth, calibration, and performance for the intended tests.

4. Laboratory infrastructure

High-voltage impulse systems require carefully designed electrical clearances, grounding, interlocks, access control, and installation arrangements.

5. Scope of supply

Clarify whether the quotation includes the generator, charging unit, wave-shaping components, measurement equipment, control software, installation guidance, commissioning, and training.

Q1: Is a 2400kV, 240kJ impulse generator suitable for every EHV transformer?

No. Suitability depends on the transformer's required impulse test level, capacitance, waveform requirements, and applicable test specification. Engineering verification is essential.

Q2: Can this system perform both lightning and switching impulse tests?

It can be configured for both when the required switching impulse circuit, wave-shaping components, measurement equipment, and control functions are included.

Q3: Is a complete measuring system available?

A complete solution can include a suitable high-voltage divider, digital transient recorder, waveform analysis software, and associated measurement accessories.

Q4: Can the system be designed for a new high-voltage laboratory?

Yes. The project can include technical configuration, equipment layout, interface planning, and installation requirements, subject to the agreed scope of supply.

Q5: What should we submit for technical evaluation?

Provide the required peak voltage, stored energy or test-object capacitance, equipment under test, required waveforms, applicable standards, and laboratory layout information.

For a high-energy impulse testing system, technical evaluation should precede final equipment selection. Send your project specifications to receive a configuration review and a proposal tailored to your laboratory requirements.