Technical Specifications

• Rated Voltage: 120kV AC RMS

• Nominal Capacitance: 12,000pF (12nF)

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

• Frequency: 60Hz (50-400Hz optional)

• Dielectric Loss: <0.2% @ 25°C

• Insulation Withstand: 132kV/1min (110% rated voltage)

• Cooling System: ONAN (Oil Natural Air Natural)

• Operating Duration: 60 minutes continuous @ 100% voltage

Industrial Structural Design

Optimized Construction

• Aluminum Corona Rings: Lightweight alloy reduces shipping costs while preventing corona discharge

• Removable Pedestal: Heavy-duty cast base with quick-release maintenance access

• Scalable HV Connections: Corona-free terminals support multiple configurations

• Oil-Immersed Design: Mineral oil insulation for thermal stability

Measurement System

• Special Measuring Lead-Wire: Direct interface with 50-400Hz variable frequency sources

• Dual-Stage Operation: Single-stage or series configurations for flexible testing

• Corona-Free HV Connection: Prevents measurement interference at high voltages

Performance Validation

Compliance: Meets IEC 61869-11, IEEE C57.13, and ANSI/NETA MTS-2023 standards.

Industrial Applications

Power Transmission

• EHV substation monitoring

• Transformer diagnostic testing

• Switchgear commissioning

Industrial Testing

• High-power motor testing

• Generator step-up system validation

• Industrial furnace power systems

Energy Research

• Renewable energy converter testing

• Power electronics validation

• Capacitive energy storage analysis

Operational Advantages

• High-Capacity Performance: 12,000pF capacitance for energy-intensive applications

• Measurement Flexibility: Dual-stage configuration for versatile test setups

• Thermal Management: ONAN cooling ensures stability during extended operation

• Maintenance Optimized: Removable base enables field servicing

• Transport Efficient: Aluminum components reduce shipping costs

Installation & Integration

Foundation Requirements

• Base Area: Minimum 0.3m² reinforced concrete

• Anchoring: Four M16 anchor bolts

• Clearance: 2.5m radial clearance at full voltage

Electrical Connection Protocol

1. Establish dual 35mm² ground cables to earth grid

2. Connect special measuring lead-wire to variable frequency source

3. Configure for single-stage or dual-stage operation

4. Implement corona-free HV connections

5. Perform step-test at 25%, 50%, 75%, 100% voltage

Safety & Maintenance

Critical Procedures

• Pre-Operation Check: Verify oil level and grounding integrity

• Thermal Monitoring: Continuous temperature tracking during operation

• Discharge Protocol: 10-minute discharge time after operation

• Preventive Maintenance: Annual dielectric fluid analysis

Calibration Schedule