HFRS-T Series Variable Frequency Resonant Test Systems

Professional-grade resonant test solutions for 200kV to 400kV applications, featuring precision-engineered iron-core reactors with ±1% inductance accuracy and enhanced thermal management for field testing environments.

Configuration Options

Single Module (HFRS-T 200kV/10000kVA)

• Rated Voltage: 200kV (220kV/60s insulation withstand)

• Rated Current: 50A continuous

• System Capacity: 10,000kVA

• Inductance Accuracy: 20H ±1%

• Thermal Limits: 65K windings / 55K oil / 40K epoxy surface

Series Connection (HFRS-T 400kV/20000kVA)

• Stackable Design: 2×200kV reactors with 200kV-rated insulation supports

• Corona Protection: Integrated grading electrodes

• System Capacity: 20,000kVA at 400kV output

• Precision: Maintains <1% error in series configuration

Breakthrough Engineering Features

Enhanced Thermal Management

• Iron-shell oil tank for superior heat dissipation vs epoxy designs

• Breather capsule for oil expansion compensation

• Strict 55K oil temperature rise limit

Field-Optimized Architecture

• Segmented air-gap iron core with OFHC copper windings

• Military-spec lifting hooks and transport protection

• Vibration-resistant for rail/road transport (IEC 61373 Category 1 compliant)

Operational Parameters

Application Scenarios

• Power Cable Testing: 220kV XLPE cable commissioning tests

• Transformer Tests: Routine withstand voltage testing per IEC 60076

• GIS Maintenance: On-site partial discharge detection

• Generator Testing: Rotor winding insulation integrity checks

Why Choose Metal Tank Design?

• 30% better heat dissipation than epoxy tube designs

• Enhanced mechanical protection during transport

• Easier oil maintenance and sampling

• Reduced surface corona effect at 400kV operation

System Identification & Compliance

• Full-parameter nameplates for each operating mode

• Meets IEC 60296 (oil) & IEC 60060-3 (test equipment) standards

• Clear serial/parallel connection labeling