Product Overview
The Lightning Impulse Voltage Generator is a specialized high-voltage testing system designed to simulate lightning-induced overvoltage conditions and evaluate the insulation withstand capability of electrical equipment. It is widely used by power equipment manufacturers, high-voltage testing laboratories, electrical utilities, research institutions, and third-party testing organizations.
Designed for reliable impulse voltage generation and accurate waveform measurement, this system can be configured to perform standard lightning impulse full-wave tests, chopped-wave tests, and other impulse voltage tests according to the requirements of the application and selected configuration.
The complete system can integrate an impulse voltage generator, charging unit, wave-shaping resistors, control system, high-voltage measuring divider, digital waveform recording equipment, and safety interlocks.
With a modular design and customizable voltage and energy ratings, the system can be engineered to meet different testing requirements, from conventional high-voltage equipment to demanding extra-high-voltage laboratory applications.
Key Features and Benefits
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High-voltage impulse generation for insulation withstand testing.
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Configurable rated voltage and stored energy.
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Standard lightning impulse waveform generation, typically 1.2/50 μs where applicable.
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Chopped-wave and switching impulse capabilities when included in the selected configuration.
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Adjustable charging voltage and impulse waveform parameters.
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Integrated control and measurement solutions.
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Digital waveform acquisition, analysis, and test data recording.
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Multiple safety functions, including interlocks and residual-voltage discharge provisions.
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Customized system design according to the test object, laboratory layout, and applicable standards.
Testing Functions
1. Lightning Impulse Full-Wave Test
Generates a standard lightning impulse voltage waveform to evaluate the insulation performance of electrical equipment subjected to lightning-related overvoltage conditions.
2. Chopped-Wave Impulse Test
With a suitable chopping device, the system can generate chopped impulse waveforms for testing applications requiring this waveform.
3. Switching Impulse Test
A switching impulse configuration can be provided when required by the test specification, particularly for selected extra-high-voltage insulation applications.
4. Impulse Waveform Measurement
The configured measuring system records the generated impulse waveform and supports evaluation of relevant parameters, such as peak voltage, wavefront time, and time to half-value.
5. Insulation Withstand Evaluation
The system supports insulation performance verification under specified test conditions. Acceptance criteria depend on the applicable standard and the test object.
Typical Applications
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Power transformers and reactors
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High-voltage bushings
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Porcelain and composite insulators
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Instrument transformers
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High-voltage circuit breakers and disconnectors
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Gas-insulated switchgear (GIS)
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Surge arresters, with a suitable test configuration
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Electrical insulation research and development
Why Choose Our Lightning Impulse Generator?
Every high-voltage laboratory has different testing requirements. Our engineering team can evaluate the required impulse voltage, energy level, test object capacitance, waveform requirements, measuring range, and installation conditions before recommending a suitable system.
Instead of selecting equipment based only on the rated voltage, customers can obtain a configuration designed around their actual test requirements.
We can discuss customized solutions for new laboratory projects, equipment upgrades, and replacement of existing impulse testing systems.
Frequently Asked Questions
Q1: What is a lightning impulse voltage generator used for?
It generates high-voltage impulse waveforms to assess the insulation withstand performance of electrical equipment under simulated lightning-related overvoltage conditions.
Q2: What is the standard lightning impulse waveform?
The commonly used standard lightning impulse voltage waveform is 1.2/50 μs. The applicable waveform tolerances and test procedure depend on the relevant standard and test object.
Q3: Which voltage ratings are available?
Voltage and energy ratings depend on the selected model and engineering configuration. Please provide your required test voltage, energy, and test objects for a suitable recommendation.
Q4: Can the system generate chopped waves and switching impulses?
These functions can be included when required. The necessary chopping devices, wave-shaping components, and control arrangements must be specified during system design.
Q5: Can the system be customized for our laboratory?
Yes. The system can be designed around your electrical equipment, test requirements, laboratory dimensions, safety provisions, and applicable standards.
Request a Technical Proposal
Please share your required impulse voltage, energy rating, test objects, waveform requirements, and destination country. Our engineering team can review your application and prepare a suitable technical proposal and quotation.
