HFRS 600kV/6000kVA Resonant Test System: Technical Specifications & Field Applications

Modular Design Configuration

The HFRS system features a revolutionary dual-module design with flexible connection options:

Key Performance Parameters

• Frequency Range: 20-300Hz operational bandwidth

• Insulation Level: 330kV/1min (single module), 660kV/1min (dual module)

• Thermal Performance:

• Winding temperature rise: ≤80K

• Transformer oil temperature rise: ≤55K

• Epoxy tube surface rise: <40K

• Duty Cycle:

• Option 1: 15min ON / 1h OFF (4 cycles/day)

• Option 2: 1h ON / 3h OFF (3 cycles/day)

Advanced Structural Features

Core Construction

The reactor utilizes an iron core with segmented air gaps and precision copper winding technology, delivering:

• Superior magnetic flux control

• Reduced eddy current losses

• Enhanced thermal stability

Cooling System

Oil-immersed self-cooling design with:

• Iron shell construction for optimal heat dissipation

• Integrated breather capsule for oil expansion compensation

• Military-grade epoxy insulation

Field Deployment Advantages

Engineered for demanding field applications:

• Shock-resistant design for rail/road transport

• Suspension hooks for easy installation

• Dual-option nameplates (single/series configuration)

• All-weather metal tank construction (superior to epoxy tube designs)

Comparative Advantages

Typical Applications

1. Power Cable Testing

Ideal for 220kV-500kV XLPE cable systems with:

• Partial discharge measurement capability

• Tan delta testing at full operating voltage

2. GIS Field Commissioning

Essential for gas-insulated substations:

• 660kV withstand voltage verification

• SF₆ equipment diagnostic testing

3. Transformer Manufacturing

Critical for quality assurance:

• Lightning impulse simulation

• Turn-to-turn insulation verification

Operational Guidelines

Safety Precautions

• Maintain minimum 5m clearance during 600kV tests

• Always discharge capacitance before handling

• Monitor oil temperature during continuous operation

Maintenance Protocol

• Quarterly oil dielectric strength tests

• Annual winding resistance measurement

• Breather capsule inspection every 6 months

This resonant test system represents the pinnacle of high voltage testing technology, combining unparalleled safety features with exceptional field performance for utility-scale applications.