HET 400kVA/40kV Exciter Transformer - Dual-Output Testing Solution

The HET 400kVA/40kV,10kV Exciter Transformer delivers flexible high-voltage testing with dual output taps (10kV/40kV), 3kV input configuration, and robust protection systems for industrial and laboratory applications.

Technical Specifications

Key Design Features

Voltage Configuration

• Dual-Output Design: 40kV main output + 10kV tap (three-bushing configuration)

• 3kV Input Optimization: Specialized for medium-voltage supply systems

• Electrostatic Shielding: Cylinder-type windings with balanced area distribution

Safety Systems

• Dual-Protection Mechanism:

• Piezoresistor arrays on HV outputs

• Zinc oxide arresters (IEEE C62.11 compliant)

• 40kV Corona-Free: Fiberglass bushings with isovolumetric capacitance cores

• Flashover Prevention: Turn-to-turn insulation withstands 110% voltage

Structural Advantages

• Mobile Platform: Wheel-mounted steel enclosure with shell-type oil tank

• Advanced Bushings:

• Porcelain LV bushings (IEC 60137)

• Triple-corona-ring HV bushings

• Oil Management: Conservator with temperature-compensated level indicator

Performance Benefits

Flexible Outputs

40kV/10kV taps for diverse testing needs

Medium-Voltage Input

3kV input simplifies system integrat