Electrical Specifications

Partial Discharge Performance

• ≤5pC at 100% rated voltage (1000kV)

• ≤2pC at 80% rated voltage (800kV)

• Tested per IEC 60270 with EMI-shielded chamber

Ultra-low discharge characteristics ensure measurement accuracy in sensitive high-voltage circuits.

Thermal Management & Operation

Continuous Operation: 60 minutes at:

• 100% rated voltage (1000kV)

• 100% rated current (0.5A)

• Full power dissipation (1.25kW)

Temperature Rise: ≤100K after 60 minutes continuous operation

Enhanced Current Capability

• 50% higher current capacity than standard models (0.5A vs 0.3A)

• Maintains ±0.1% resistance stability at full load

• Optimized for extended test cycles in calibration systems

Precision Engineering Features

• Low TCR: 3ppm/°C temperature coefficient

• Voltage Coefficient:

  <0.0005%>

• Construction: Vacuum-impregnated manganin windings

• Thermal Path: Copper-beryllium heat spreaders

Critical Applications

• High-voltage calibrator reference circuits

• Partial discharge measurement systems

• UHV transformer diagnostic equipment

• National metrology laboratory standards

• Dielectric response analyzers

Thermal Performance Data

Operational Protocols

1. Pre-operation resistance verification (±0.05% tolerance)

2. Ambient stabilization at 23°C ±1°C

3. Maximum 60-minute continuous operation cycles

4. 90-minute cooldown between full-power tests

Compliance & Certification

• IEC 60273: High-voltage resistors

• IEEE 4-2013: HV testing standards

• ISO/IEC 17025: Calibration requirements

• EN 61326-1: EMC for measurement equipment