Technical Specifications

• Rated Voltage: 70kV AC RMS

• Nominal Capacitance: 300pF ±5%

• Dividing Ratio: 1000:1 (±1% accuracy)

• Frequency: 50/60Hz (40-500Hz customizable)

• Dielectric Loss: <0.5% @ 20°C

• Partial Discharge (PD): <3pC at 70kV

• Cooling System: ONAN (Oil Natural Air Natural)

• Operating Time:

• 60 mins continuous @ 100% rated voltage

• Unlimited operation @ 80% rated voltage

Structural Advantages

Oil-Immersed Modular Design

Mineral oil insulation ensures thermal stability and arc suppression. Removable components enable field maintenance:

• Corona Ring: Prevents ionization at HV terminals

• LY Arm: Low-voltage measurement interface

• HY Arm: High-voltage capacitive stack

• Removable Base: Facilitates oil replacement and inspection

Performance Validation

Compliance: Meets IEC 60060-1, IEC 61869-11, and IEEE C57.13 standards.

Industrial Applications

Power Systems

Accurate voltage measurement in:

• 33kV+ switchgear commissioning

• Transformer ratio verification

• Harmonic analysis in substations

Test Laboratories

Critical for:

• Partial discharge detection systems

• Dielectric withstand testing

• Calibration reference standards

Safety & Maintenance Protocols

1. Pre-Operation Check: Verify oil level indicators and grounding continuity

2. Thermal Management: Maintain ambient temperature below 40°C for ONAN efficiency

3. Calibration Cycle: Annual recertification recommended per ISO 17025

4. PD Monitoring: Quarterly tests when used >50% rated voltage

Why Choose This HV Divider?

• Ultra-Low PD: <3pC ensures measurement integrity in sensitive applications

• Removable Design: 60% faster maintenance vs. sealed units

• ONAN Cooling: Eliminates need for forced-air systems

• Extended Duty Cycle: Industry-leading 60-min full-voltage operation