Ultra-High Voltage Testing Solution

The LQHIVG 3000KV-75KJ Impulse Voltage Generator delivers unprecedented 3000kV output for specialized high-voltage testing. With its 15-stage architecture and unique steep wave impulse capability (>1000kV/μs), this system is engineered for precision testing of composite insulators, transmission equipment, and other critical high-voltage components.

Technical Specifications

Advanced Waveform Capabilities

1. Standard Lightning Impulse (IEC 60060-1)

• Waveform: 1.2μs ±30% / 50μs ±20%

• Peak Oscillation: ≤5% amplitude

2. Switching Impulse Wave

• Waveform: 250μs ±20% / 2500μs ±60%

3. Steep Wave Impulse (Composite Insulator Testing)

• Wavefront Steepness: >1000kV/μs

• Amplitude: 600kV

Performance Metrics

• Voltage Utilization:

• Lightning Impulse: ≥90% (load <1000pF)

• Switching Impulse: ≥85% (load <1000pF)

• Synchronization: ±20% range at 20-100% rated voltage

• Discharge Control: <2% uncontrolled rate

• Voltage Stability: Charging fluctuation <±1.0%

• Sparking Range: 10-100% Un

• Duty Cycle:

• 120s cycle at >66% rated voltage

• 60s cycle at <66% rated voltage

Compliance with International Standards

• IEC 60060-1/2 (2010): High-voltage test definitions

• IEC 61083-1/2: Impulse measurement instruments

• ANSI/IEEE 4a, 376, 1122: Impulse testing standards

• ASTM D2484/D2518: Electrical insulation testing

• GB311/GB16927: Chinese national standards

Specialized Applications

1. Composite insulator steep wave testing

2. Ultra-high voltage transmission equipment validation

3. Lightning protection system performance verification

4. Power transformer impulse testing

5. High-voltage research & development

The generator's unique >1000kV/μs steep wave capability makes it particularly valuable for assessing insulation performance under extreme transient conditions.