HET 80kVA Dual-Tap Exciter Transformer Specifications

High Voltage Testing Transformer

This 80kVA single-phase exciter transformer features two selectable high-voltage outputs with ONAN cooling, designed for precision testing applications up to 20kV.

Electrical Parameters

Key Features

• Dual voltage output (10kV/20kV)

• Electrostatic shield between HV windings

• 5kV corona-free bushings

• ONAN cooling system

• Wheel-mounted steel enclosure

Protection System

Electrical Protection

• Piezoresistors on all HV outputs

• Zinc oxide arresters for grounding

• Fiber glass bushings with corona rings

Structural Protection

• Steel housing with movable wheel base

• Shell-type oil tank with conservator

• Porcelain bushings for LV connections

Insulation System

1. Cylinder Winding Design with turn-to-turn insulation

2. Electrostatic Shielding for balanced voltage distribution

3. Compound Insulation Tube skeleton reduces partial discharge

4. Oil-Immersed design for thermal stability

Performance Data

Typical Applications

• Circuit breaker testing

• Transformer excitation systems

• High-voltage cable testing

• Insulation resistance measurement

• Electrical research laboratories

Safety Features

• Flashover protection from external surges

• Protected main and minor insulation systems

• Isovolumetric capacitance core design

• Working cycle matched to reactor specifications

The HET 80kVA dual-tap exciter transformer provides reliable high-voltage outputs with exceptional partial discharge performance (<10pC), making it ideal for demanding electrical testing applications.