150kV ~ 400kV

LQHDR 250kV/10kΩ/0.08A Damping Resistor | High-Voltage Testing | 60-Min Continuous Operation

Industrial-grade LQHDR 250kV damping resistor with 10kΩ resistance and 0.08A rating. Designed for 60-minute continuous operation in demanding high-voltage testing applications.

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Lead time: 30days

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Product Details

Product Tags

LQHDR 250kV/10kΩ/0.08A Damping Resistor: High-Voltage Testing Performance

Precision Damping for Critical HV Applications

The LQHDR 250kV/10kΩ damping resistor delivers reliable oscillation suppression in high-voltage testing circuits up to 250kV. Engineered for 50Hz systems at 0.08A current, this specialized component ensures measurement accuracy during extended test cycles. With its certified 60-minute continuous operation at full load, it's essential for transformer impulse testing, cable diagnostics, and high-voltage research requiring stable performance under demanding conditions.

Technical Specifications

Parameter	Specification
Model	LQHDR 250kV/10kΩ/0.08A
Rated Frequency	50Hz
Rated Voltage	250kV
Rated Current	0.08A
Nominal Resistance	10kΩ ±1%
Calculated Power Rating	64W (P = I²R = 0.08² × 10000)
Operating Time	60 minutes continuous at 100% load
Compliance Standards	IEC 60060-1, IEEE 4

Performance Advantages

High-Voltage Stability

Specialized construction for 250kV systems with corona-free design. Voltage grading technology prevents surface tracking, ensuring reliable operation in humid environments.

Extended Operation Capability

Certified for continuous 60-minute operation at full 250kV/0.08A load - 35% longer duty cycle than standard HV resistors. Proprietary cooling design maintains stable resistance throughout test cycles.

Precision Damping Characteristics

Optimized 10kΩ resistance provides critical damping for:

Lightning impulse wave shaping (1.2/50μs)
Switching surge suppression (250/2500μs)
Partial discharge measurement circuits

Industrial Applications

Industry	Application	Benefit
Power Utilities	Transformer impulse testing	Waveform control per IEC 60076-3
Cable Manufacturers	HV cable partial discharge testing	Measurement stability for IEC 60502 compliance
Research Facilities	Dielectric strength experiments	Extended test duration capability
High-Voltage Labs	Circuit breaker testing	Surge suppression for accurate timing measurements

Installation & Safety

Mounting Requirements

Minimum clearance: 2.0m to grounded surfaces
Vertical orientation recommended (HV terminal upward)
Grounding: 16mm² copper minimum with secure bonding

Operational Protocols

Pre-heat at 10% voltage for 10 minutes before full-load tests
Monitor surface temperature with IR thermometer during operation
Allow 90-minute cooldown between test cycles

Safety Compliance: Meets IEC 61010-1 requirements for HV test equipment.

Technical Comparison

Feature	Standard 250kV Resistor	LQHDR 250kV/10kΩ
Continuous Operation	30-45 minutes	60 minutes
Current Range	0.1A minimum	0.08A precision rating
Resistance Tolerance	±5%	±1%
Waveform Control	Basic damping	Precision impulse shaping