100kVA ~ 400kVA Range
HET 150kVA Wide-Frequency Exciter Transformer
Variable Frequency Testing Solution
This 150kVA exciter transformer features an exceptional 45-300Hz operating range with dual low-voltage inputs, designed for precision high-current testing applications.
Electrical Specifications
Parameter | Low Voltage Side | High Voltage Side |
---|---|---|
Voltage | 350V × 2 | 0.7kV / 1.4kV |
Current | 428.6A (max) | 105A |
Frequency Range: 45-300Hz | Capacity: 150kVA | Partial Discharge: <10pC |
Key Features
Wide 45-300Hz operating frequency
Dual 350V input configuration
High-current 428.6A capacity
Low-loss D0130-30 silicon steel core
Electrostatic shielding between windings
Technical Specifications
Core Design
D0130-30 high-quality silicon steel
Optimized low Bm value
Double-coil construction
Copper lead wire windings
Cooling System
ONAN cooling (Oil Natural Air Natural)
25# transformer oil (Class A)
Oil expansion tank with moisture absorber
Temperature monitoring system
Advanced Features
Measurement System
Built-in measuring coil for HV voltage
Oil temperature thermograph
Oil level indicator
Safety Design
Ample HV/LV winding clearance
Partial discharge prevention
Corona-free operation
Transport-optimized component layout
Performance Characteristics
Parameter | Specification |
---|---|
Thermal Limits | Winding ΔT ≤65K, Oil ΔT ≤55K |
Duty Cycle | 1 hour ON / 2 hours OFF (3 cycles/day) |
Sound Level | ≤65dB |
Partial Discharge | <10pC |
Typical Applications
Variable frequency resonant testing
Power transformer excitation
High-current component testing
Insulation diagnostic systems
Electrical research laboratories
Quality Assurance
Precision electrostatic shielding
Optimized magnetic circuit design
Thermally validated performance
Industrial-grade components
The HET 150kVA exciter transformer combines wide frequency operation with high-current capacity, delivering exceptional performance for demanding electrical testing applications.