Dry Type
HFRS 270kV/270kVA Modular Dry Type Resonant System: Six-Stage Flexible Testing Solution
Advanced six-module configuration providing unmatched flexibility with multiple voltage/current combinations through series and parallel connections of 45kV/45kVA dry type reactor units.
System Configuration Options
| Configuration | Voltage | Current | Power | Inductance |
|---|---|---|---|---|
| 6S (All Series) | 270kV | 1A | 270kVA | 792H |
| 3S2P (3 Series × 2 Parallel) | 135kV | 2A | 270kVA | 198H |
| Single Module | 45kV | 1A | 45kVA | 132H |
Technical Specifications
Base Module: 45kV/45kVA dry type reactor
Total Modules: 6 (320kg total system weight)
Frequency Range: 30-300Hz
Continuous Operation: 60 minutes at rated power
AC Withstand: 110% of rated voltage
Temperature Rise: ≤65K after 60 minutes operation
Cooling Method: Natural air convection
Design Advantages
Modular Flexibility
Multiple configuration options (series/parallel combinations)
Individual module weight: 50kg (easy handling)
Quick-connect bushing system
Dry Type Technology
Epoxy tube insulation system
No flammable liquids - safer operation
Lower maintenance requirements
Environmentally friendly
Thermal Management
Optimized airflow design
Temperature rise within 65K at full load
Automatic thermal protection
Performance Comparison
| Feature | HFRS Dry Type | Conventional Oil Type |
|---|---|---|
| Max Voltage | 270kV | Typically 150kV |
| Weight | 320kg | 600kg+ |
| Maintenance | Annual inspection | Quarterly oil tests |
Typical Applications
High Voltage Cable Testing
270kV AC withstand testing
Partial discharge measurement
Transformer Testing
Winding resistance measurements
Frequency response analysis
GIS Commissioning
Gas-insulated switchgear testing
Three-phase simultaneous testing
Operation & Maintenance
Installation Requirements
Minimum 3m clearance for 270kV operation
Well-ventilated area
Level mounting surface
Maintenance Schedule
Visual inspection before each use
Annual dielectric test
Five-year comprehensive evaluation
