>400kVA Rang

HET 400kVA/30kV Exciter Transformer | Quad-Range HV Testing (5-30kV) with 20-300Hz Frequency

The HET 400kVA/30kV Exciter Transformer delivers four voltage ranges (5-30kV) with 20-300Hz frequency flexibility, <6% impedance, and electrostatic shielding for precision high-voltage testing applications.

US$ 24,919.00
Lead time: 30 days

Send email to us

>>>WhatsApp Communication<<<

Product Details

Product Tags

HET 400kVA/30kV Exciter Transformer - Multi-Range Frequency-Variable Testing

The HET 400kVA/30kV,20kV,10kV,5kV Exciter Transformer provides unparalleled testing versatility with four independent HV outputs, wide frequency range (20-300Hz), and advanced electrostatic shielding for critical power equipment evaluation.

Technical Specifications

Parameter	Specification
Rated Capacity	400kVA
Frequency Range	20-300Hz
HV Winding Voltage	5kV, 10kV, 20kV, 30kV (Independent)
HV Winding Current	80A (5kV), 40A (10kV), 20A (20kV), 16.6A (30kV)
LV Winding Voltage	2×400V, 2×460V, 2×500V
LV Winding Current	2×434.8A
No-Load Current	<8%
Impedance Voltage	<6%
Cooling Method	ONAN (Oil Natural Air Natural)
Temperature Rise	Winding <65K, Oil <55K
Noise Level	≤60dB

Advanced Design Features

Core & Winding Technology

Premium Core Material: D0130-30 cold-rolled silicon steel with ultra-low Bm value
Quad Independent Windings: Four separate HV coils for precise voltage selection
Electrostatic Shielding: Isolation filter between LV/HV windings prevents interference

Monitoring & Protection

Integrated Measurement: HV-side voltage measurement coil for precision monitoring
Oil Management System:

Expansion tank with moisture absorber
Temperature thermograph and level indicator

Structural Advantages

Shell-Type Construction: Oil-immersed design with transport-optimized components
Safety-Spaced Windings: Prevents partial discharge and corona effects
Copper Lead Wires: High-conductivity connections for 434.8A LV current

Performance Benefits

Wide Frequency Range

20-300Hz operation for specialized test protocols

Four Voltage Ranges

5kV to 30kV coverage in one unit

High Current Capacity

80A at 5kV for demanding test scenarios

Thermal Stability

ONAN cooling with 25# transformer oil

Industrial Applications

Frequency-dependent withstand voltage tests
Power transformer diagnostic testing
High-voltage cable partial discharge measurement
Research lab insulation aging studies

Standards Compliance

IEC 60076 (Power Transformers)
IEEE C57.12.90 (Test Code)
EN 60296 (Transformer Oil Standards)

Why Choose This Transformer?

Unmatched Flexibility: Combines 4 voltage ranges with wide frequency bandwidth
Measurement Precision: Integrated HV monitoring for accurate results
Industrial Durability: Designed for continuous operation
Future-Proof Design: Adaptable to evolving testing standards

Conclusion

The HET 400kVA/30kV Exciter Transformer represents the pinnacle of high-voltage testing technology, combining exceptional range flexibility with laboratory-grade precision for utility, manufacturing, and research applications.