Your Professional Impulse Voltage Generator Supplier
Founded in 1992 and formally incorporated as Wuhan Moen Intelligent Electrical Co., Ltd. on November 12, 2012, with a registered capital of RMB 36 million, we are a professional technology company specializing in the research, development, and production of high-voltage test equipment. Our 8,000 m² facility in Wuhan East Lake High-Tech Development Zone houses dedicated production lines, R&D centers, and administrative facilities. With an experienced technical and production team, Moen focuses on core products including test transformers, series resonance systems, and other high-voltage testing equipment. Backed by years of industry experience, the company is committed to reliable manufacturing, continuous technical improvement, and providing practical solutions for global power utility and industrial customers.
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Why choose us
Our Certificate
We are certified in ISO 9001 (Quality), ISO 45001 (Health & Safety), and ISO 14001 (Environment), ensuring high standards in all aspects of our operations.
Strong R&D Capability
Committed to technological breakthroughs, including investments to develop 750kV reactor solutions.
Experienced Technical Team
A growing team of 61 employees supporting product development, production, and customer service.
Complete Pre & After-Sales Service
From solution design and technical support to installation, maintenance, and fast response service.
Lightning Impulse Generator is a device used to generate standard lightning impulse voltage waveform, mainly used to test the insulation performance of power equipment (such as transformers, insulators, cables, etc.) under high voltage impulse. Its core principle is to generate lightning impulse waveform that meets standard requirements by charging and discharging capacitor banks.
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DC high voltage |
≥ 40.5 kV |
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Impulse voltage wave |
Shock wave pre-wave time: 1.2 µs ± 30% |
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Peak voltage |
3 kV ~ 30.5 kV ≤ ± 3% |
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Impact interval time |
5 ~ 99 (s) |
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Note: When the test voltage is >15kV, the charging time should be at least 10 seconds |
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Number of impacts |
1 ~ 9999 |
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Polarity |
Positive and Negative |
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Working power supply |
Rated voltage: ~ 220 V ± 10 % 50Hz |
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Dimensions and weight |
External dimensions (width, height, depth): 700 × 1300 × 600 (mm) |
Accurate Simulation of Lightning Surges
Generates standard lightning impulse waveforms to simulate real lightning and surge conditions, helping evaluate equipment performance under overvoltage stress.
High Voltage Capability
Produces high impulse voltages suitable for testing transformers, cables, insulators, switchgear, and other high-voltage equipment.
Reliable Insulation Assessment
Helps detect insulation defects and weak points before equipment is put into service.
Flexible Testing Configurations
Allows adjustment of voltage levels, waveform parameters, and polarity to meet different testing requirements.
Enhanced Product Quality and Safety
Improves product reliability and reduces the risk of insulation failure in actual operation.
Types of Lightning Impulse Voltage Generator
Single-Stage Impulse Generator
A single-stage generator consists of one energy storage capacitor and associated charging and discharge components. It is commonly used for low-voltage impulse testing, laboratory demonstrations, and educational purposes.
Portable Impulse Generator
Portable systems are compact and lightweight, designed for field testing, on-site diagnostics, and maintenance activities. They are commonly used when transporting large equipment to a laboratory is impractical.
Automatic Impulse Voltage Generator
These generators incorporate computerized control systems for automatic charging, triggering, waveform adjustment, data acquisition, and test reporting. They improve testing efficiency, repeatability, and operator safety.
Research and Development Impulse Generator
Specialized generators used in research laboratories often provide a wide range of waveform adjustments and advanced diagnostic capabilities. They are employed for insulation studies, material research, and the development of new high-voltage technologies.
Hybrid Impulse Generator
Hybrid systems can generate multiple types of impulse waveforms, such as lightning impulses, switching impulses, and chopped impulses, within a single platform. They offer greater versatility for comprehensive high-voltage testing programs.
Applications of Lightning Impulse Voltage Generator
In the power grid industry, lightning impulse voltage generators are used to test the insulation performance of transformers, circuit breakers, insulators, and other high - voltage equipment. By subjecting these components to simulated lightning impulses, engineers can detect potential insulation defects and ensure their reliability under extreme conditions.
Electrical equipment manufacturers use lightning impulse voltage generators to test the quality and performance of their products during the production process. This helps to ensure that the products meet the relevant international and national standards and can withstand the effects of lightning strikes in real - world applications.
In research institutions and universities, lightning impulse voltage generators are used for scientific research and development. They are used to study the electrical breakdown characteristics of different materials, develop new insulation materials, and improve the design of high - voltage equipment.
☆High-voltage DC power supply: Provide charging voltage for the capacitor bank. Usually a rectifier circuit or a high-voltage generator is used, and the output voltage can reach tens of kilovolts to hundreds of kilovolts.
☆Capacitor bank: Used to store electrical energy. The capacity and number of capacitors determine the output energy of the generator.
★Wavefront resistor (Rf) and wavetail resistor (Rt):
☆Wavefront resistor (Rf): Controls the rise time (wavefront time) of the waveform.
☆Wavetail resistor (Rt): Controls the fall time (wavetail time) of the waveform. By adjusting these two resistors, a lightning impulse waveform that meets the standard can be generated.
☆Trigger device: Controls the discharge time of the capacitor bank. Spark gaps or electronic switches are usually used to achieve fast discharge.
☆Measurement system: Includes a voltage divider and an oscilloscope to measure and record the output voltage waveform.
Working Principle of Lightning Impulse Voltage Generator
Charging stage
Use high-voltage DC power supply to charge the capacitor bank and store electrical energy.
Discharging stage
Control the discharge of the capacitor bank through the trigger device, and form a standard lightning impulse waveform through the wave front resistor and wave tail resistor.
Testing Methods and Steps of Lightning Impulse Voltage Generator
Preparation stage
Before conducting the test, a detailed inspection should be carried out on the equipment under test to ensure that it is in good condition. At the same time, the testing environment should meet the requirements of relevant standards to avoid interference from external factors.
Parameter setting
According to the rated voltage and application environment of the equipment, set the amplitude, rise time, and duration of the impulse voltage. The selection of these parameters directly affects the reliability of the test results.
Applying the impulse voltage
Through the impulse voltage generator, apply the set voltage to the equipment. During this process, the response of the equipment needs to be monitored in real time, and the changes in voltage and current should be recorded.
Result analysis
After the test is completed, the data needs to be analyzed to determine whether the equipment has experienced breakdown or other failure phenomena under the impulse voltage. At the same time, the recovery ability and subsequent performance of the equipment also need to be evaluated.
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