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10-35kv Oil Transformer

When it comes to medium-voltage power distribution, the reliability and efficiency of your transformers are paramount. Our high-performance 10-35kV Oil Transformers are engineered for exceptional durability and performance in demanding industrial, commercial, and utility applications. For projects requiring robust and cost-effective solutions, our Aluminum Winding Transformer series offers an excellent balance of conductivity and economy. When enhanced cooling and longevity within an oil-immersed design are critical, our specialized Aluminum Winding Oil Transformer provides superior thermal management and insulation. Furthermore, for renewable energy integration, our Oil Photovolta Transformer is specifically designed to handle the variable loads and environmental conditions of solar farms, ensuring stable power conversion and grid connection. Each unit is built to international standards, featuring advanced core designs and meticulous construction for minimized losses and maximum operational life.


The core of any reliable electrical network is a transformer built to last. Our 10-35kV Oil Transformer is the culmination of decades of engineering expertise, designed to deliver unwavering performance under continuous operation. Utilizing high-grade, low-loss silicon steel cores and precision-wound copper or aluminum windings, these transformers ensure optimal efficiency and reduced energy waste. The tank is constructed from robust steel with advanced anti-corrosion treatment, and the proprietary insulating oil system provides superior dielectric strength and effective heat dissipation. We understand that every installation has unique demands, which is why our 10-35kV Oil Transformer is available in a range of standard and customized configurations. From on-load tap changers for precise voltage regulation to specialized bushings and protective devices, we tailor each unit to seamlessly integrate into your specific power infrastructure, providing a foundation of stability and safety.

Key Features & Specifications

Standard Technical Parameters (Example for 10kV Class)

Rated Capacity (kVA) No-Load Loss (W) Load Loss (W) Impedance Voltage (%) Sound Level (dB)
100 220 1500 4 ≤55
315 450 3650 4 ≤58
630 720 6200 4.5 ≤60
1000 980 10300 4.5 ≤62
2000 1700 17800 5 ≤65

Optional Accessories & Configurations

Component Description Benefit
On-Load Tap Changer (OLTC) Allows voltage adjustment under full load. Maintains optimal voltage levels, improves grid stability.
Temperature Control & Monitoring Integrated WTI/OTI gauges and PT100 sensors. Real-time thermal monitoring, enables predictive maintenance.
Pressure Relief Device Rapid pressure venting with alarm signal. Enhances safety by preventing tank over-pressure.
Silica Gel Breather Absorbs moisture from incoming air. Preserves oil insulation quality and dielectric strength.
Corrosion-Resistant Finish Specialized paint or galvanization. Extends service life in coastal or industrial environments.

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