Optimized High-Voltage Testing Platform

The LQHIVG 600KV-7.5KJ delivers exceptional efficiency in lightning impulse testing. With 85% voltage utilization at <1000pF loads and a 6-stage modular design, this generator provides precision dielectric validation for power transformers, switchgear, and transmission equipment with ≤1.0% voltage instability.

Global Standards Compliance

Certified for international high-voltage testing protocols:

• IEC 60060-1/2-2010: Test definitions & measurement systems

• IEC 61083-1/2: Digital measurement requirements

• ANSI/IEEE 4a-2001: High-voltage techniques

• ASTM D2484/D2518: Insulation testing standards

Core Technical Specifications

Lightning Impulse Performance

Standard Waveform (300-2000pF load)

• Front time (T1): 1.2μs ±30%

• Tail time (T2): 50μs ±20%

• Peak deviation: ≤3%

Chopping Wave Capability

• Adjustable chopping time: 2-5μs

• Peak deviation: ≤3%

Voltage Utilization Efficiency

Control System & Reliability

Operational Efficiency

Cycling Performance

• High-voltage mode (>66% rated voltage): 90s charge/discharge cycles

• Standard mode (<66% rated voltage): 45s charge/discharge cycles

Industrial Applications

• EHV transformer impulse withstand testing (IEC 60076)

• Gas-insulated substation (GIS) commissioning

• High-voltage cable system validation

• Power utility equipment certification

Safety & Calibration

1. Annual calibration per IEC 61083-2 requirements

2. IEEE 4a safety margin enforcement

3. ASTM D2518 dielectric verification

4. Remote operation capability for >300kV tests

Performance Validation

System verification includes:

• NIST-traceable voltage calibration

• High-speed oscilloscopic waveform analysis

• Load-specific efficiency testing (300-2000pF range)