150kV ~ 400kV
LQHDR 400KV/5KΩ High-Voltage Protecting Resistor
Industrial-grade load resistor for high-voltage test systems requiring precision protection and stability under extreme electrical stress.
Technical Specifications
Parameter | Value | Standard |
---|---|---|
Rated Voltage | 400KV | IEC 60273 |
Resistance | 5.2kΩ ±1% | IEC 60076 |
Rated Current | 0.625A | IEC 60060 |
Rated Power | 2kW | |
Partial Discharge (PD) | <5pC @ 400KV | IEC 60270 |
Temperature Rise | <80K @ full load | IEC 60505 |
Continuous Operation | 60 min @ 100% load | IEC 60076-14 |
Key Performance Features
Ultra-Low Partial Discharge: <5pC at rated voltage ensures measurement accuracy in sensitive HV tests
Thermal Stability: Max 80K temperature rise under continuous full-load operation
Precision Resistance: 5.2kΩ ±1% tolerance for consistent voltage division
Compact Design: Space-efficient 100×500×3000mm dimensions
Lightweight Construction: Under 25kg for easy installation and transport
Industrial Applications
High-Voltage Testing Systems
Provides critical protection for:
Transformer impulse testing
Cable fault detection systems
Switchgear dielectric verification
Research & Development
Essential for:
High-energy physics experiments
Renewable energy component testing
Power electronics development
Safety & Compliance
Designed to meet international standards for high-voltage equipment:
IEC 60273: Requirements for series resistors
IEC 60060: High-voltage test techniques
IEC 60270: Partial discharge measurements
CAT IV 400KV safety rating
Warning: Installation requires certified HV technicians with appropriate PPE.
Environmental Specifications
Operating Temp: -25°C to +55°C
Humidity: 0-85% non-condensing
Altitude: Up to 2000m ASL
Cooling: Natural convection (forced air optional)