Technical Specifications

• Rated Voltage: 120kV AC RMS

• Nominal Capacitance: 4000pF (per unit)

• Overall Capacitance: 12nF (system total)

• Rated Current: 10A continuous

• Dividing Ratio: 2000:1 (±1% accuracy)

• Frequency: 50Hz (40-500Hz optional)

• Dielectric Loss: <0.2% @ 25°C

• Partial Discharge: <3pC at 120kV

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

• Operating Duration: Continuous @ 100% rated current

• Cooling System: ONAN (Oil Natural Air Natural)

High-Current Structural Design

Industrial-Grade Construction

• Aluminum Corona Rings: Optimized alloy for thermal management at 10A load

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

• Scalable HV Connections: Corona-free terminals rated for 10A continuous

• Multi-Unit Configuration: Three 4000pF units deliver 12nF overall capacitance

Measurement System

• Special Measuring Lead-Wire: 10A-rated interface with variable frequency sources

• Dual-Stage Operation: Single-stage or series configurations

• High-Resolution Ratio: 2000:1 division for precision measurements

Performance Validation

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

Industrial Applications

Power Transmission

• EHV substation busbar monitoring

• Transformer diagnostic testing

• High-current switchgear validation

Renewable Energy

• Solar farm central inverter monitoring

• Wind turbine step-up transformers

• Battery storage system integration

Industrial Processes

• Electrolytic manufacturing systems

• Industrial furnace power monitoring

• High-power motor drive testing

Operational Advantages

• High-Current Capacity: 10A continuous rating for demanding applications

• Dual-Function Design: Combines voltage division and coupling capabilities

• Scalable Capacitance: 12nF overall capacity through multi-unit configuration

• Precision Measurement: 2000:1 ratio enables detailed voltage analysis

• Thermal Management: ONAN cooling maintains stability at full load

Electrical Integration

Connection Methodology

1. Configure units in parallel for 12nF/10A capacity

2. Establish dual 50mm² ground connections to earth grid

3. Connect special 10A-rated lead-wire to variable frequency source

4. Implement HV corona-free connections

5. Select single-stage or dual-stage measurement mode

Current Handling Specifications

Safety & Maintenance

Critical Procedures

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

• Current Monitoring: Continuous amperage tracking during operation

• Thermal Supervision: IR monitoring of connections at >5A loads

• Discharge Protocol: 15-minute discharge after full-load operation

Maintenance Schedule