HET 300kVA/35kV Exciter Transformer - Multi-Range High-Voltage Testing

The HET 300kVA/35kV,20kV,10kV,5kV Exciter Transformer sets new standards in high-voltage testing with four precise output ranges, ultra-low partial discharge (<2pC), and advanced operator protection systems for industrial and laboratory applications.

Technical Specifications

Key Design Features

Advanced Insulation System

• Electrostatic Shielding: Dedicated layer between HV/LV windings prevents interference

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

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

Safety & Protection

• Piezoresistor Arrays: Each HV output protected against surges

• Zinc Oxide Arresters: Ground connection for input/output terminals

• Corona-Free Design: Fiberglass bushings with corona rings ensure 35kV operation

Structural Advantages

• Mobile Steel Housing: Wheel-mounted with shell-type oil tank

• Precision Bushings:

• HV: Isovolumetric capacitance core fiberglass

• LV: Porcelain bushings by voltage grade

• Oil Management: Conservator maintains optimal oil levels

Performance Highlights

Ultra-Low Discharge

<2pC ensures measurement accuracy in sensitive tests

4-Range Flexibility

5kV-35kV outputs cover diverse testing needs

Operator Safety

Multi-layer protection meets IEC 60076 standards

Thermal Stability

ONAN cooling with 25# transformer oil

Applications

• Power transformer withstand voltage tests

• High-voltage cable diagnostics

• Switchgear and breaker testing

• Research lab insulation studies

Why This Exciter Transformer?

1. Industry-Leading Safety: Comprehensive protection against flashovers and surges

2. Measurement Precision: Minimal partial discharge for reliable results

3. Future-Proof Design: Handles both current (35kV) and legacy (5kV) test requirements

4. Reduced Downtime: Robust construction minimizes maintenance needs

Technical Certifications

Complies with:

• IEC 6