Lightning Impulse Voltage Generator HV Surge Impulse Test Set for Substation Equipment & High Voltage Switchgear Test

Product Introduction

The SXCY Series Impulse Voltage Generator is designed for high-voltage impulse testing of electrical equipment under lightning and switching overvoltage conditions.

It supports lightning impulse full-wave, chopped-wave, and switching impulse voltage tests, and can generate eight standard impulse waveforms, including lightning, switching, oscillating, steep-front, and transformer induced switching waves.

With technical parameters compliant with Chinese national standards and IEC standards, the SXCY Series provides a reliable solution for insulation performance testing of high-voltage electrical equipment.

Highlight

• Wide voltage range with a complete supporting assembly.
• Low-inductance return circuit for improved impulse waveform quality.
• Advanced band-stop filtering maintains standard waveforms under large-capacity loads.
• Strong load adaptability and high voltage utilization factor.
• Simple waveform adjustment and stable synchronization performance.
• Automatic constant-current charging for highly automated operation.
• Strong resistance to electromagnetic interference.
• Digital waveform analysis and online computer processing enhance test accuracy and efficiency.

Wide Testing Applications

Test Objects:

Power transformers, high-voltage insulators, HV cables, surge arresters, switchgears, CT/PT, bushings and other high-voltage equipment.

Application Sites:

High-voltage laboratories, third-party testing institutes, electrical equipment factories and power grid research centers.

Testing Purposes:

Type testing and routine factory testing.

FAQ

1. 1. What is the working principle of the SXCY Impulse Voltage Generator?

   The impulse generator stores electrical energy in multiple impulse capacitors and releases the stored energy through controlled triggering and series discharge to produce a high-voltage impulse.​

2. 2. How many stages are available?

   The SXCY Series can be configured with different numbers of stages according to the required output voltage. The product range shown includes configurations from 1–4 stages up to 18–24 stages.​

3. 3. What impulse energy can the system provide?

   The listed configurations provide impulse energy ranging from approximately 7.31 kJ to 320 kJ, depending on the rated voltage, capacitance and number of stages.​

4. 4. What is the capacitor configuration?

   The system uses impulse capacitors together with grading capacitors and wave-shaping components. Capacitor values are selected according to the required voltage and impulse waveform.​

5. 5. Why is low inductance important in an impulse generator?

   Low inductance in the return circuit helps reduce unwanted circuit effects during the very rapid impulse discharge process, supporting more accurate and stable waveform generation.