Multi-wave High Voltage Test System

A Multi-wave High Voltage Test System is a specialized device used to simulate complex electrical disturbances encountered in real-world environments. It is mainly used to evaluate the interference resistance capability and insulation integrity of power equipment, electronic products, and insulating materials when subjected to extreme high-voltage conditions such as lightning strikes and power grid switching operations.

Applications

Multi-wave High Voltage Test System can generate 200kV HVAC, 280kV HVDC and 400 kV lightning voltage and switching voltage. The system can carry the insulation withstand test for insulating materials and power equipment, it meets the requirements of IEC 60099-4 and relevant standards.

Standards

IEC 60099-4

Technical Parameters

Features

Multi-Waveform Compatibility: Supports the generation of multiple standard-compliant waveforms in accordance with international standards such as IEC and ANSI/IEEE, including 1.2/50 μs lightning impulse, 250/2500 μs switching impulse, and damped oscillatory waveforms, meeting the testing requirements of different electrical equipment.

Multi-Stage Impulse Generator (Marx Circuit): Adopts the classic Marx generator architecture, in which capacitors are charged in parallel and discharged in series to multiply the output voltage.

Flexible Waveform Adjustment: The system is equipped with waveform shaping resistors and inductance networks, enabling convenient and precise adjustment of front time and time to half-value to accommodate highly capacitive loads.

Automation and Control: Modern systems are equipped with digital measurement and control systems, enabling automatic constant-current charging control, automatic polarity reversal, and precise triggering and analysis of transient waveforms.

High Reliability and Safety: Includes automatic grounding and discharge devices, high-voltage isolation, and safety interlock grounding chains to ensure the safety of both operators and equipment.

Maintenance Information

Regular Cleaning: After each use of the test system, a thorough cleaning is required. A vacuum cleaner or a clean lint-free cloth should be used to remove dust from high-voltage components and insulating materials. If necessary, only cleaning solvents recommended by the manufacturer should be applied.

Visual Inspection: Periodically inspect test cables, connectors, insulators, and high-voltage leads for damage, cracks, corona discharge traces, or any form of physical deterioration.

Electrical Connection Inspection: Ensure that all terminal connections are clean and securely tightened. Special attention should be given to the integrity of the grounding system (Ground Integrity) to prevent floating potentials.

FAQ

1. What is a Multi-wave High Voltage Test System?

It is an integrated testing system capable of generating and outputting multiple types of voltage waveforms (such as AC/DC, pulse waves, lightning impulse waves, or specific ripple waveforms). It is used to evaluate the insulation strength and electromagnetic immunity of electrical equipment under high-voltage conditions.

2. Which industries is it mainly used in?

It is widely used in the high-voltage power industry (insulation testing of transformers, cables, and GIS switchgear), new energy vehicles (electrical immunity testing of high-voltage wiring harnesses, inverters, and onboard components), and electromagnetic compatibility (EMC) laboratories.

3. What common waveforms does the system support?

Typical supported waveforms include power-frequency AC, DC, lightning impulse waveforms (such as 1.2/50 μs), switching impulse waveforms, and voltage ripple waveforms defined by automotive standards such as LV123 and VW 80300.

4. Why use “multi-waveform” instead of single-wave testing?

In real-world conditions, electrical equipment is exposed to various transient and steady-state electromagnetic environments, such as lightning strikes, switching surges, and power supply ripple. A multi-waveform system enables comprehensive testing against multiple standards on a single platform, offering higher test coverage and improved cost efficiency.

5. How is personnel and equipment safety ensured during testing?

The system is typically equipped with multiple safety interlocks, such as emergency stop buttons, overcurrent and overvoltage protection, and discharge grounding circuits. In addition, operation is required to be carried out inside a Faraday cage or a properly insulated testing area.