HDVR-1200kV/30mA Ultra-HVDC Protection Resistor

Product Overview

Engineered for extreme voltage applications, the HDVR-1200kV resistor provides essential protection for 1.2MV DC test systems with its precision 120kΩ current-limiting design and 30mA continuous rating, capable of handling 36kW continuous power dissipation.

Technical Specifications

Protection System Architecture

Dual-Resistor Network

• AC Side Protection: 10kΩ charging transformer resistor

• DC Side Protection: 120kΩ main limiting resistor

• Robotic positioning system with 0.05mm accuracy

Failure Protection Mechanism

Unprotected System Risks

1. Fault currents exceed 150A during shorts

2. Rectifier stacks destroyed in <10μs

3. Complete system failure

4. Six-figure repair costs

HDVR Protection Benefits

1. Peak current limited to <36mA

2. Voltage transients capped at 104%

3. 98% reduction in component damage

4. Automatic fault isolation

Design Features

• Voltage Grading: 12-stage active grading with AI control

• Thermal Management: Submerged dielectric oil cooling

• Mechanical: 4.5m quartz-epoxy core with hexagon corona shields

• Monitoring: Dual-redundant fiber-optic sensors

Protection Performance

Installation Requirements

1. Minimum 9m clearance from grounded surfaces

2. Laser-aligned vertical installation (<0.25° deviation)

3. Monthly automated resistance verification (±1% tolerance)

4. Pre-commissioning test at 1440kV for 60 minutes

5. Real-time partial discharge monitoring

Compliance Standards

• IEC 62271-1 (1200kV+ equipment)

• IEEE Std 1845 (Extreme HVDC systems)

• MIL-PRF-39005 (Military power resistors)

• ITER EL-01 (Fusion reactor standards)

Typical Applications

• Fusion reactor power conditioning

• Next-gen HVDC transmission

• Particle accelerator energy storage

• National high-voltage laboratories

• Space propulsion test facilities

The HDVR-1200kV/30mA represents the cutting edge of ultra-high voltage protection, with its 120kΩ precision resistance and 20μs response time ensuring safety in 1.2MV systems testing capacitive loads up to 25nF. The military-grade construction exceeds requirements for fusion research and aerospace applications.