400kV ~ 600kV Range
LQHVF 400KV/100pF Capacitor Voltage Divider
Precision high-voltage measurement solution for critical power infrastructure testing with industry-leading partial discharge performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 400KV |
| Rated Capacity | 100pF |
| Partial Discharge (PD) | ≤5pC @ rated voltage |
| Cooling System | ONAN (Oil Natural Air Natural) |
| Voltage Measurement Deviation | ≤±3% |
| Dimensions | 1500mm × 1500mm × 3200mm |
| Weight | 300kg |
Advanced Design Features
Optimized Corona Control
Aluminum alloy corona ring ensures:
HV corona-free connections
Modular design for transportation
Scalable voltage measurement
Stable Removable Pedestal
Engineered for maximum stability during 400KV operations
Quick assembly/disassembly for field testing
Compatible with variable frequency power sources
Measurement Capabilities
Flexible Connection Options
Special measuring lead-wire for variable frequency power sources
Single-stage and two-stage serial voltage measurement
HV connection ports with anti-corona shielding
ONAN Cooling Advantages
Natural oil-air circulation eliminates fans/moving parts
Maintains stable dielectric properties during extended tests
Reduces maintenance requirements by 40% vs. forced cooling
Industry Applications
| Application | Benefit |
|---|---|
| Transformer Testing | ±3% accuracy ensures reliable dielectric strength validation |
| Cable PD Measurement | ≤5pC sensitivity detects early insulation degradation |
| Mobile Test Labs | Removable pedestal and transport-optimized corona ring |
| High-Power Research | Scalable connections support 800KV+ configurations |
Compliance & Standards
Meets international requirements for:
IEC 60060-1: High-voltage test techniques
IEEE 4: Standard for HV testing
ASTM D3612: Insulating oil analysis protocols
Safety Note: Always use with certified HV lead-wires and maintain minimum approach distances per IEEE 516.
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