900kV/90kJ Lightning Impulse Voltage Generator

The Lightning Impulse Generator (HMCJ-900kV/90kJ Impulse Voltage Generator) is a high-voltage pulse simulation testing device specifically designed to simulate natural lightning or transient high-voltage pulses in power systems. This impulse voltage generator is mainly used to produce full wave standard lightning impulse voltage, lightning impulse voltage wave and the oscillation lightning impulse voltage, standard operating impulse voltage wave, impulse voltage wave oscillation operation, steep impulse voltage wave, for insulator, air gap, casing, power transmission and transformation equipment such as power transformer, lightning arrester, GIS impulse voltage test and other scientific experiments.

• Efficient energy output: Adopting high-density solid capacitors (lightweight and compact design), the energy storage efficiency is high, with a standard lightning impulse wave efficiency of over 90% when unloaded, ensuring accurate and reliable test results.
• Intelligent control system: The PLC based control system supports automatic charging, triggering, and grounding operations, with real-time monitoring functions (such as charging voltage and ball gap distance display), reducing human operation errors.
• Modular design: The equipment adopts a three-level insulation column support structure, and each level of capacitor and resistor can be independently maintained, making it easy to expand and customize (such as adding cutoff gaps or splitters).
• Safety protection mechanism: Built in grounding switch and abnormal protection (such as overcurrent and overvoltage protection), automatic discharge in case of fault, ensuring the safety of operators.
•  Waveform adjustability: By adjusting the resistance of the wave head and tail, standard lightning impulse waves (1.2/50 μ s), chopped waves (2-6 μ s), or other customized waveforms can be flexibly generated to meet different testing needs.
• High stability: Output peak voltage instability ≤ 1.0%, synchronous discharge error rate<2%, ensuring consistency in repeated testing.

• Altitude: ≤1000m

• Ambient temperature: -15°C to +45°C

• Relative humidity: ≤90%

• Maximum daily temperature variation: ≤25°C

• Installation location: Indoor (avoid outdoor exposure)

• No conductive dust, no fire or explosion hazards, no corrosive gases

• Shock resistance: Seismic rating ≤ 8

• The impact measurement and control systemcan select different sub-screen for controloperation on the display of the operatingtable.
• The charging voltage can automatically trackand set the charging voltage value, anddisplay the charging transformer low-voltageside current and voltage value of the impulsevoltage generator;
• The charging voltage can automatically trackand set the charging voltage value, and displaythe charging transformer low-voltage sidecurrent and voltage value of the impulsevoltage generator;

Optimized for Global Clients This system combines cutting - edge technology with robust safety features, making it the ultimate solution for high - voltage impulse testing in power equipment R&D and quality assurance.

Keywords: Lightning Impulse Voltage Generator, High Voltage Testing Equipment, Insulation Testing, IEC - Compliant, 1800kV/180kJ, Steep - Front Impulse Waves.

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1.Nominal voltage: 900kV

2. Rated step voltage: 100kV

3. Rated charging voltage: 100kV

4. Nominal energy: 90kJ

5. Total impulse capacitance: 0.222µF (single pulse capacitor, 2.0µF/100kV, 9 units total)

6. Number of steps: 9

7. Step capacitance: 2.0µF

8. Step energy: 10kJ

9. Impulse voltage waveform parameters: When the load capacitance is 300-4000pF, it can produce the following:

9.1 Standard lightning impulse voltage full wave: 1.2±30%µs/50±20%µs,

Amplitude: ±3%, with oscillation at the peak not exceeding 5% of the amplitude;

9.2 Standard lightning impulse switching voltage wave: 250±20%µs/2500±60%µs.

10.Charging Voltage Instability: ≤±3.0%

11. Voltage Accuracy: ≤1.0%

12. Partial Response Time: Ta≤100nS

13. Voltage Divider Ratio Accuracy: ≤±1.0%

14. Amplitude Adjustment Voltage Error: ≤1.0%