Technical Specifications

• Rated Voltage: 250kV AC/DC

• Nominal Resistance: 1kΩ ±5%

• Rated Current: 1A continuous

• Frequency: 50/60Hz operational

• Operating Duration: 60 minutes at full rated load

• Temperature Performance: Meets IEC 60076 thermal rise standards at rated current

• Termination: Dual shielded HV connectors

• Safety Compliance: IEC 61010-1 CAT IV

Core Functions & Design Features

• Voltage Stabilization: Suppresses transient oscillations in HV circuits

• Impulse Protection: Absorbs lightning impulse voltages up to 250kV

• Non-Inductive Design: Wirewound construction with controlled reactance

• Thermal Management: Forced-air cooling compatibility for extended operation

• Dielectric Housing: Silicone-coated epoxy resin encapsulation

Typical Applications

Installation & Safety Guidelines

1. Maintain minimum 1.5m clearance from grounded surfaces

2. Use only with Class 4 HV leads (300kV rating minimum)

3. Pre-operational check: Verify insulation resistance >10GΩ at 5kV DC

4. Thermal monitoring required during continuous 60-minute operation

5. Post-discharge procedure: Wait 5×RC time constant before handling

Warning: Operate only in temperature-controlled environments (0°C to 40°C)

Compliance & Standards

• IEC 60076-14: Power transformer testing

• IEEE C57.98-2011: Impulse testing guidance

• EN 60204-1: Electrical equipment safety

• Temperature rise validation per IEC 60505

Maintenance Protocol

• Annual dielectric strength verification at 150% rated voltage

• Resistance tolerance check: Quarterly calibration

• Surface cleaning: Isopropyl alcohol wipes only

• Storage: Humidity-controlled environment (

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