Technical Specifications

• Rated Voltage: 270kV AC (50/60Hz)

• Nominal Resistance: 5kΩ ±3%

• Rated Current: 0.2A continuous

• Partial Discharge (PD):

• <5pC at 270kV (100% rated voltage)

• <3pC at 216kV (80% rated voltage)

• Operating Duration: 60 minutes at full 270kV/0.2A load

• Dimensions: Ø300mm (inner) / Ø360mm (outer) × 8000mm

• Weight: <20kg

• Termination: Dual corona-reduced HV bushings

• Standards Compliance: IEC 60270 Partial Discharge Measurements

Key Performance Features

• Ultra-Low PD Design: Specialized shielding for sensitive measurement environments

• Precision Waveform Control: Non-inductive winding technique (±0.05µH)

• Thermal Management: Aluminum oxide-filled epoxy composite for optimal heat dissipation

• Compact Construction: Highest voltage-to-size ratio in class (270kV in 8m length)

• Lightweight Solution: 40% lighter than conventional HV resistors

Application Matrix

Installation Guidelines

1. Mount horizontally using V-insulators at 1.5m intervals

2. Maintain minimum 1.8m clearance to grounded objects

3. Use silicone-coated HV cables (minimum 300kV rating)

4. Ground both ends during HV system de-energization

5. Ambient temperature: -25°C to +50°C operational range

Critical Safety Note: PD measurements require electromagnetic shielding of entire test circuit. Minimum 40dB attenuation recommended for measurements below 10pC.

Compliance & Validation

• Partial discharge testing per IEC 60270:2015 Class II

• Dielectric validation per IEC 60060-1:2010

• Thermal rise certification: ΔT ≤ 65K at 0.2A (IEC 60505)

• Environmental rating: IP54 (dust and moisture resistant)

• Quality assurance: ISO 9001:2015 manufacturing

Maintenance Protocol

• Annual Verification:

• Resistance tolerance check at 1kV DC

• Surface contamination test (≤0.05mg/cm²)

• 3-Year Calibration:

• Full partial discharge characterization

• Dielectric strength test at 300kV AC

• Cleaning Procedure: Non-abrasive, non-conductive cleaners only