Lightning and switching overvoltages can seriously threaten the insulation performance of high-voltage electrical equipment. Lightning impulse testing is therefore an essential test for equipment development, factory inspection, and final quality verification.

Traditional impulse voltage test systems are often fixed installations, making them difficult to relocate and requiring dedicated testing areas.

To address these challenges, Sansion Power has developed the SXCF Mobile Impulse Voltage Test System, combining a compact mobile design, automatic control, high-quality impulse waveforms, and strong electromagnetic interference resistance.

It provides a flexible and efficient solution for 40.5 kV ring main units (RMUs), gas-insulated switchgear (GIS), transformers, and other high-voltage equipment.

Key Advantage: Mobile & Flexible Testing

The SXCF features a lightweight and compact structure supported by insulated columns. No permanent foundation or dedicated test bay is required.

The complete system can be easily relocated for in-line testing, equipment re-inspection, temporary quality checks, and workshop testing.

This flexible design allows manufacturers, testing laboratories, utilities, and research institutions to perform impulse voltage tests across different locations and operating conditions.

Six Core Features

1. Compact Circuit Design & Excellent Waveform Quality

   Based on a proven international compact circuit design, the system features low inductance and convenient waveform adjustment.

   It generates clean, stable standard lightning impulse waveforms, helping improve testing efficiency and consistency.

2. Fiber-Optic Isolation for Strong EMI Protection

   The system uses fiber-optic measurement, control, and communication, eliminating conventional control cables between the high-voltage and control sections.

   This design effectively reduces electromagnetic interference and ground potential rise, improving the safety and reliability of chopped-wave and steep-front impulse testing.

3. PLC Automatic Control & Easy Operation

   Equipped with a Mitsubishi PLC control system and touchscreen HMI, the SXCF supports manual, automatic, and programmed operation modes.

   Built-in testing procedures for transformer full-wave and chopped-wave impulse tests help simplify operation and reduce human errors.

4. Precise Electronic Chopping

   Electronic delay control enables stable 2–6 μs chopping delay, with chopping-time dispersion below 0.1 μs.

   The result is precise parameters, excellent repeatability, and consistent impulse testing performance.

5. Dry-Type Capacitors for Long Service Life

   The system uses fully dry-type encapsulated capacitors, eliminating oil leakage and deformation concerns.

   The robust design provides strong environmental adaptability, long service life, and low routine maintenance requirements.

6. Multiple Safety Interlocks

   The system integrates automatic grounding, charging-grounding interlocks, overvoltage protection, overcurrent protection, and abnormal-condition alarms.

   Multiple safety measures help protect both the equipment and operators throughout the testing process.

Applications

The SXCF Mobile Impulse Voltage Test System is primarily designed for full-wave and chopped-wave lightning impulse testing of 40.5 kV environmentally friendly gas-insulated, fully enclosed switchgear.

It can also be used for impulse insulation testing of:

• Transformers
• Instrument transformers
• High-voltage switchgear
• Surge arresters
• Power cables
• Insulators
• GIS equipment
• Other high-voltage electrical equipment

The system is suitable for electrical equipment manufacturers, testing laboratories, power utilities, research institutes, and universities.

Why Choose the SXCF Mobile Impulse Voltage Test System?

Mobile deployment. Easy operation. Accurate waveforms. Strong interference resistance. Reliable safety protection.

The SXCF provides a practical solution for customers who need flexible lightning impulse testing without a permanent test station.

Looking for a mobile impulse voltage generator or customized lightning impulse test system for your high-voltage equipment?

Contact Sansion Power for technical specifications, testing solutions, and a customized quotation.

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