What Is High Voltage Transformer？
A Yüksek Gerilim Trafosu is an essential electrical device designed to step up or step down voltage levels in power transmission and distribution systems. Typically operating at voltages above 1kV AC, these transformers are critical for minimizing energy loss over long-distance power transmission, as well as for supplying high-voltage power to industrial machinery, medical equipment (e.g., X-ray machines), laboratory instruments, and renewable energy systems such as solar farms and wind turbines.
High voltage transformers work on the principle of electromagnetic induction, using primary and secondary windings around a laminated core to efficiently transfer electrical energy between circuits while maintaining isolation and safety. Depending on the application, they can be oil-immersed for better cooling and insulation or dry-type for indoor and environmentally sensitive installations.
Working Conditions of the High Voltage Transformer
- Standart tasarım yüksekliği: Deniz seviyesinden ≤ 1.000 metre yükseklikte
- Indoor dry-type units: –5°C to +40°C
- Maximum relative humidity: 95% (non-condensing) at +40°C
- Indoor: Must be installed in well-ventilated
- Outdoor oil-immersed units: –25°C to +40°C
Ürün Parametreleri
| Product Type | Nominal Gerilim Oranı (kV) | Accuracy Classes Combination | Accuracy Class and Rated Output (COSφ=0.8 lagging, VA) | Accuracy Class and Rated Output (COSφ=0.8 lagging, VA) | Accuracy Class and Rated Output (COSφ=0.8 lagging, VA) | Thermal Limit Output Capacity (VA) |
|---|---|---|---|---|---|---|
| 0.2 | 0.5 | 1 | ||||
| JSZV18-10R | 10/0.1 | 0.2 0.5 1.0 | 50 | 100 | 150 | 2*400 |
| JSZV18-10R | 10/0.1/0.22 | 0.2 0.5 1.0 | 40 | 80 | 150 | Max. Power Output 2*300 |
Why Choose ZHIMING's High Voltage Transformer?
Superior Build Quality
ZHIMING transformers are manufactured using high-grade silicon steel cores, oxygen-free copper windings, and premium insulation materials. This results in lower core losses, reduced heat generation, and extended service life — even under continuous heavy loads.
Optimized Energy Efficiency
Our designs achieve efficiency ratings of up to 98.5%, significantly reducing energy waste and operational costs over the transformer's lifespan. Lower no-load losses and impedance-optimized windings mean more power reaches your equipment and less is lost as heat.
Uncompromising Safety Standards
Every ZHIMING high voltage transformer undergoes rigorous testing — including partial discharge, insulation resistance, temperature rise, and impulse voltage tests — to comply with international standards such as IEC 60076, IEEE C57.12, and CSA. You get peace of mind knowing your system is protected against electrical faults.
Superior Thermal Management
Whether you choose oil-immersed or dry-type configurations, our transformers are engineered with advanced cooling systems (ONAN, ONAF, or forced air) that keep operating temperatures within safe limits even in demanding environments.
Customization & Scalability
Need a specific voltage ratio, power rating (from 100 kVA to 50 MVA+), or enclosure type? ZHIMING offers tailored solutions for industrial plants, utility substations, renewable energy projects, and railway systems. Our engineering team works closely with you to match exact specifications.
SSS
What is the typical lifespan of a ZHIMING high voltage transformer?
With proper maintenance, our oil-immersed transformers can last 25–30 years, while dry-type units typically exceed 20 years. Routine oil testing and insulation resistance checks help maximize service life.
Can I use a ZHIMING high voltage transformer outdoors?
Yes. We offer weatherproof enclosures (IP54, IP65) and oil-immersed designs that are well-suited for outdoor substations. For harsh environments (high humidity, salt mist, dust), we recommend additional protective coatings or specialized enclosures.
How efficient are ZHIMING high voltage transformers?
Our standard units achieve 97–98.5% efficiency at full load. For projects requiring premium efficiency (e.g., green energy certifications or utility incentives), we can design amorphous core transformers that surpass 99% efficiency.
What's the difference between dry-type and oil-immersed high voltage transformers?
Dry-type transformers use air or resin as insulation — ideal for indoor use (buildings, hospitals, tunnels) where fire safety is critical. Oil-immersed transformers use mineral oil or biodegradable ester fluids for better cooling and dielectric strength, making them preferred for outdoor and high-power applications.
Do you provide custom voltage ratios?
Absolutely. We manufacture transformers for primary voltages up to 35kV (and higher upon request) with custom secondary voltage outputs tailored to your equipment or local grid requirements.
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