HET 50kVA Dual-Output Exciter Transformer (16kV/8kV)

Engineered for precision high-voltage applications, the HET 50kVA exciter transformer delivers stable 8kV and 16kV outputs with optimized electrostatic shielding and corona-free operation. Ideal for laboratory and field testing environments requiring dual voltage ranges.

Technical Specifications

Core Design Features

Advanced Insulation System

• Electrostatic Shielding: Dedicated layer between HV and LV windings

• Cylinder-Type Windings: Balanced top/bottom area distribution

• Compound Insulation Tube: Reduces partial discharge and shields iron core

• Voltage Distribution Control: Electrostatic compensation for uniform initial voltage

Mechanical Construction

• ONAN Cooling: Oil Natural Air Natural system for efficient thermal management

• Steel Housing: Shell-type oil tank with conservator

• Mobile Design: Wheel-mounted with movable base

• Corona-Free Bushings: Fiberglass HV bushings with rings (16kV rating)

Safety & Protection Systems

Electrical Protection

• Zinc oxide arresters on all HV outputs and ground connections

• Piezoresistors installed per HV terminal

• Isovolumetric capacitance core for HV bushings

Structural Safety

• Porcelain bushings for LV connections

• Multi-layer turn-to-turn insulation

• Flashover protection for main and minor insulation

Performance Highlights

1. Dual Voltage Output: Switchable 8kV/16kV operation

2. Low Impedance: <5% voltage drop under load

3. Corona-Free Operation: Verified at 16kV

4. Field-Deployable: Wheeled base for test site mobility

Typical Applications

• Power transformer testing

• High-voltage cable evaluation

• Insulation material research

• Switchgear dielectric tests

Manufactured in compliance with IEC 60076 and IEEE C57.12.01 standards. Recommended maintenance interval: 2 years or 1500 operational hours.