HET 350kVA/4kV Exciter Transformer - High-Capacity Multi-Range Solution

The HET 350kVA/4kV,3.5kV,2.5kV,1.75kV Exciter Transformer provides laboratory-grade testing capabilities with four voltage outputs, industry-leading impedance performance (<3%), and robust protection systems for demanding industrial applications.

Technical Specifications

Advanced Design Features

Voltage & Insulation System

• Quad-Range Precision: 1.75kV to 4kV outputs with identical current density

• Electrostatic Shielding: Multi-layer isolation between HV windings

• Cylinder Windings: Balanced top/bottom area with shield compensation

Safety & Protection

• Dual-Protection Mechanism:

• Piezoresistor arrays on each HV output

• Zinc oxide arresters (IEEE C62.11 compliant)

• 5kV Corona-Free: Fiberglass bushings with integrated rings

• Flashover Prevention: Turn-to-turn insulation withstands 150% surges

Structural Engineering

• Mobile Test Platform: Wheel-mounted steel enclosure (900×600×1200mm)

• Advanced Bushings:

• HV: Isovolumetric capacitance core fiberglass

• LV: Porcelain bushings per IEC 60137

• Oil Management: Conservator with magnetic oil level indicator

Performance Advantages

Ultra-Low Impedance

<3% ensures minimal voltage regulation loss

High Current Capacity

875A LV current for heavy-duty applications

Multi-Test Flexibility

4 voltage ranges cover diverse testing needs

Enhanced Safety

Redundant protection systems meet IEC 60076

Industrial Applications

• Industrial motor and generator testing

• Power transformer routine maintenance

• Medium-voltage cable factory tests

• Research lab insulation studies

Certifications & Compliance

• IEC 60076 (Power Transformers)

• IEEE C57.12.00 (Safety Requirements)

• EN 50588 (Partial Discharge Testing)

Why Choose This Model?

1. Exceptional Efficiency: <3% impedance maximizes power transfer

2. Test Versatility: Handles 1.75kV to 4kV requirements

3. Industrial Durability: Robust construction for harsh environments

4. Maintenance-Friendly: Wheeled design with visual indicators

Conclusion

The HET 350kVA/4kV Exciter Transformer sets new benchmarks for high-current, low-voltage testing, combining four precision ranges with military-grade protection systems for industrial and utility applications.