HDD-1200kV/1mA HVDC Divider | World-Leading Ultra-High Voltage Measurement

Field-Grading Optimized Design

• Record voltage measurement: 1200kV DC capacity

• Advanced field control: Emax/Ec ratio of 47.6%

• Ultra-fast response: ≤0.1ms measurement time

Technical Specifications

Advanced Electrical Design

Breakthrough Field Grading

• Emax: 11.7kV/cm (maximum field strength)

• Ec: 24.5kV/cm (critical field strength)

• Safety margin: 52.4% below critical field

Precision Resistor Network

• Dual-resistor group configuration:

• Internal: Precision measurement resistors (0.1% tolerance)

• External: Optimized grading resistors

Structural Advantages

1. Insulation System:

• Oil-filled epoxy composite insulation

• Partial discharge <5pC at 1200kV

• Leakage current <0.5μA

2. Terminal Protection:

• 1200kV-optimized corona ring

• IP68-rated LV terminal enclosure

3. Mobility:

• Industrial-grade wheel base with locks

• 500kg-capacity hydraulic lift

Elite Applications

• Next-generation HVDC transmission research

• National metrology laboratory standards

• Fusion energy experimental facilities

Field-Proven Reliability: Demonstrated 0.3% ratio stability during 1000-hour continuous operation at 1100kV with 50kV superimposed ripple.