high-voltage transformer

1. Product Introduction:

The 35 kV series oil-immersed transformer is a classic high-voltage distribution equipment developed in China using traditional high-quality manufacturing processes. Equipped with premium cold-rolled silicon steel sheets, high-conductivity oxygen-free copper conductors, and advanced core structures, this product demonstrates outstanding advantages in the 35 kV voltage range, including mature technology, stable operation, and excellent cost-performance ratio.

This product is reliably capable of converting and distributing electrical energy within the range of 35 kV to 10 kV/0.4 kV and is widely applied in regional main power grids, industrial and mining enterprises, as well as large-scale infrastructure projects. It serves as standard distribution equipment balancing reliability and cost-effectiveness.

2. Technical specifications (customizable)

Energy Efficiency Class: High-efficiency and energy-saving transformer • Connection Group: Commonly used Dyn11 • Cooling Method: ONAN (oil-immersed self-cooling) Loss and Performance Parameters • Capacity Range: 50KVA-63000KVA • Impedance Voltage: 4% or 6.3% (adjustable by capacity) • Insulation Class: Class A • Noise Level: ≤65 dB (slightly varies with capacity) • Operating Temperature: Top oil temperature rise ≤55K, maximum top oil temperature does not exceed 95°C Environmental Protection • Operating Environment: -30°C to +40°C, adaptable to high humidity and outdoor dust • Protective Structure: Sealed oil tank with anti-corrosion coating

3. Key features

1. Mature technology and universal compatibility, combining standardized production processes with high component compatibility. With an extremely low equipment failure rate, it represents one of the lowest-risk options for constructing and upgrading 35 kV power grids, meeting diverse requirements for traditional power sources.

Stable operation with reliable impact resistance: the iron core uses a multi-step lamination process to evenly distribute magnetic circuits; the coil uses high-strength conductors combined with a longitudinal oil structure to ensure high mechanical strength. It demonstrates excellent resistance to sudden short circuits, effectively addressing complex operating conditions such as grid voltage fluctuations and load surges, thereby ensuring long-term stable operation.

Sealed construction with convenient maintenance: The sealed corrugated oil tank or oil storage cabinet effectively prevents oxidation, moisture absorption, and leakage of insulating oil. Routine maintenance is simple, requiring only periodic checks of oil level and temperature without frequent core lifting repairs, significantly reducing operational and maintenance costs throughout the entire lifecycle.

Wide adaptability and excellent weather resistance: The fuel tank is coated with anti-corrosion paint, featuring a robust overall structure capable of withstanding harsh outdoor conditions such as strong sunlight, humidity, and significant temperature fluctuations. It ensures safe and stable operation in both high-altitude regions and coastal humid areas.

4. Application scenarios

1. Adaptation of regional power grid trunk line: Designed for 35 kV county-level power grids and township power supply trunk lines, this core equipment connects regional power sources to end-user loads, ensuring reliable and stable regional power supply.

Industrial and mining enterprises, along with large industrial parks, provide the main power supply for large factories, mines, metallurgical plants, chemical parks, and industrial bases. This infrastructure supports the startup and long-term stable operation of high-power equipment, serving as the foundation of industrial electricity demand.

Large infrastructure and public buildings, including highway service areas, railway stations, water conservancy centers, large shopping malls, and university towns, are powered by our high-voltage conversion solutions, ensuring safe and reliable electricity supply.

Rural power grid modernization and electricity supply in remote areas: In projects for rural power grid modernization and electricity supply in remote areas, these models have become the preferred choice due to their high cost-effectiveness and ease of maintenance, effectively improving the quality and coverage of rural electricity supply.