HET 250kVA/4kV Exciter Transformer - Variable Frequency Test Solution

Technical Specifications

Key Features

Advanced Electrical Design

• Independent HV winding for stable output

• 20-300Hz wide frequency operation

• Electrostatic shielding with isolation filter

• Integrated measuring coil for HV monitoring

Robust Construction

• Oil-immersed shell-type design

• DQ130-30 high-grade silicon steel core

• Double-coil copper windings

• Porcelain bushings for LV connections

250kVARated Capacity

300HzMax Frequency

≤60dBNoise Level

Design Advantages

1. Low Bm-value core reduces energy losses

2. Ample HV/LV clearance prevents partial discharge

3. Oil conservator with moisture absorber

4. Transport-optimized component layout

Thermal Management

• Class A heat resistance

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

• Temperature thermograph monitoring

• Oil level indicator

Typical Applications

• Variable frequency resonant testing

• Medium-voltage cable withstand tests

• Transformer and reactor testing

• Industrial equipment validation

Engineered for demanding test environments, the HET 250kVA/4kV combines high capacity with exceptional frequency flexibility, making it ideal for both factory and field testing applications.