HET 200kVA/25kV Exciter Transformer - Triple-Range HV Testing Solution

Technical Specifications

Key Features

Advanced Electrical Performance

• Three selectable output voltages

• Wide frequency operation (30-300Hz)

• Ultra-low partial discharge (<5pC)

• Electrostatic shielding between windings

Premium Construction

• Oil-immersed shell-type design

• DQ130-30 high-grade silicon steel core

• Double-coil copper wire windings

• Integrated measuring coil for HV monitoring

≤5%    Impedance

65K/55K    Temp. Limits

≤60dB    Noise Level

Design Advantages

1. Optimized Bm value core reduces energy losses

2. Ample HV/LV winding clearance prevents partial discharge

3. Corona-free operation up to 25kV

4. Transport-friendly component layout

Insulation System

• LV Winding: 5kV/1min withstand

• HV Winding: 50kV/60s withstand

• Turn-to-turn insulation layers

• Isolation filter functionality

Monitoring & Safety

• Oil expansion tank with moisture absorber

• Temperature thermograph monitoring

• Visual oil level indicator

• Class A heat resistance (25# transformer oil)

Typical Applications

• High-voltage cable testing

• Power transformer manufacturing tests

• Switchgear and circuit breaker validation

• Research laboratory applications

The HET 200kVA/25kV exciter transformer delivers exceptional testing flexibility with its triple voltage outputs and wide frequency range, engineered for reliable performance in demanding high-voltage applications.