HET 200kVA/20kV Exciter Transformer - Precision High Voltage Testing Solution

Technical Specifications

Key Features

Advanced Electrical Protection

• Zinc oxide arresters on all ground connections

• Piezoresistors for each HV output

• 20kV corona-free bushings

• Electrostatic shielding between windings

Precision Engineering

• Isovolumetric capacitance core design

• Balanced top/bottom winding areas

• Fiberglass bushings with corona rings

• Compound insulation tube winding skeleton

Operational Reliability

• ONAN cooling with 25# transformer oil

• Steel housing with integrated wheels

• Porcelain bushings for LV connections

• Oil conservator with level indicator

Performance Highlights

≤5%    Impedance

50Hz    Rated Frequency

≤5pC    Partial Discharge

Insulation System

1. Turn-to-turn insulation layers

2. Electrostatic compensation shielding

3. Iron core electromagnetic shielding

4. Flashover prevention design

Safety Features

• Main and minor insulation protection

• External potential surge prevention

• Transport-optimized component layout

• Moisture-resistant oil system

Industry Applications

• Power transformer manufacturing tests

• High-voltage cable qualification

• Switchgear withstand voltage testing

• Research laboratory applications

Engineered for precision measurements, the HET 200kVA exciter transformer delivers exceptional performance with its ultra-low partial discharge characteristics and dual-voltage flexibility, making it ideal for critical high-voltage testing applications.