100kVA ~ 400kVA Range
HET 125kVA Dual-Tap Exciter Transformer
High-Current Testing Solution
This industrial-grade 125kVA exciter transformer delivers dual high-voltage outputs with robust 312.5A input capacity, designed for demanding electrical testing environments.
Electrical Specifications
Parameter | Input | Output |
---|---|---|
Voltage | 0.4kV | 3.75kV / 5kV |
Current | 312.5A | 33A / 25A |
Frequency: 60Hz | Capacity: 125kVA | Impedance: <5% |
Key Features
High-current 312.5A input capacity
Dual voltage output configuration
5kV corona-free operation
Electrostatic shielding between windings
Industrial-duty construction
Technical Specifications
Insulation System
Cylinder winding design
Electrostatic shield between HV/LV windings
Balanced voltage distribution
Compound insulation tube
Structural Design
Heavy-gauge steel enclosure
Wheel-mounted for mobility
Shell-type oil tank with conservator
Fiber glass HV bushings with corona rings
Advanced Protection System
Electrical Protection
Piezoresistors on all HV outputs
Zinc oxide arresters for grounding
Isovolumetric capacitance core
Safety Features
Flashover protection
Main and minor insulation protection
5kV corona-free guarantee
Performance Characteristics
Feature | Specification |
---|---|
Maximum Output | 5kV (corona-free) |
Input Capacity | 312.5A @ 0.4kV |
Cooling Method | ONAN (Oil Natural Air Natural) |
Partial Discharge | Minimized through shielding design |
Industrial Applications
Circuit breaker testing
Transformer excitation systems
High-voltage equipment diagnostics
Insulation resistance testing
Electrical research laboratories
Quality Assurance
Precision-engineered voltage distribution
Electrostatic shield compensation
Iron core shielding technology
Industrial-grade components
The HET 125kVA exciter transformer combines high-current input capacity with dual voltage outputs, delivering reliable performance for professional electrical testing applications.