250kVA 3300V 1140V/400V Mining Copper Step Down Electrical Isolation Dry Type 0-2000kVA/Custom Low Voltage 0V-3.3kv Distribution Power Transformer Price

1. High Efficiency & Strong Protection

Over 99% efficiency. Advanced copper wire winding and core design cut energy losses, stably outputting proper voltage, saving energy for harvester's long use. Class H insulation and three-proofing (waterproof, dustproof, anti-corrosion). The explosion-proof shell and sealed structure prevent explosion risks, protecting personnel and equipment.

2. Compact & Efficient Structure

Copper wire winding makes it compact. Full copper plate for heat conduction and water cooling system ensure good heat dissipation. Flatness ≤ 1.6μm for smooth ops and fitting complex underground layout.

• A) Altitude: Not exceeding 1000m, shall be derating used if above 1000m;
• B) Ambient Temperature: -25ºC~55ºC.
• C) Relative Humidity: ≤95%;
• D) Installation site: No bad effect on transformer insulation, chemical deposition, dust, and other explosive or erosive medium.
• E) Supply voltage: Approximates sinusoidal wave, three-phase voltage relatively balanced.

Established in 1975, the manufacturer specializes in the production and development of transformers and reactors, integrating both domestic and international advanced technologies.

Leading products include single-phase isolation transformers, three-phase isolation transformers, reactors, medium and high-frequency products, and specialized transformers for rail transit, wind power, photovoltaic, mining, and hydroelectric projects. With over fifty years of experience, the company has accumulated rich technical expertise in various application fields.

The company strictly adheres to the ISO 9001:2015 system standard, with most products certified by CE, TÜV, and PSE. The core philosophy is "Beyond Products, Delivering Solutions," constantly pursuing innovation with high-tech materials and processes.