HET 250kVA/50kV Exciter Transformer - Dual-Winding Configuration

Technical Specifications

Key Features

Flexible Winding Configuration

• Serial Mode: 50kV output for extra-high voltage tests

• Parallel Mode: 25kV/10A for high-current applications

• Independent winding design

Advanced Electrical Design

• Wide 30-300Hz frequency operation

• Electrostatic shielding between windings

• Isovolumetric capacitance core

• Integrated HV measurement coil

Robust Construction

• DQ130-30 silicon steel core (low Bm value)

• Oil-immersed shell-type design

• Double-coil copper windings

• Transport wheels for mobility

50kVSerial Output

10AParallel Current

300HzMax Frequency

Thermal Management

• ONAN cooling with 25# transformer oil

• 65°C winding / 55°C oil temperature limits

• Oil expansion tank with moisture absorber

• Temperature and level monitoring

Safety Systems

1. Corona-free design up to 50kV

2. Ample HV/LV winding clearance

3. Partial discharge prevention

4. Flashover-resistant insulation

Typical Applications

• EHV cable testing (50kV mode)

• Transformer impulse testing

• High-current component validation (25kV mode)

• Frequency response analysis

The HET 250kVA/50kV redefines testing flexibility with its dual-winding configuration, delivering both ultra-high voltage and high-current capabilities in one robust system.