35kV Oil Immersed Distribution Transformer

35kV oil-immersed transformers can be customized to meet specific customer requirements, making them suitable for 35kV power distribution and conversion applications. Standard capacities range from 630kVA to 31,500kVA, including increments of 800kVA, 1,000kVA, 1,250kVA, 1,600kVA, 2,000kVA, 2,500kVA, 3,150kVA, 4,000kVA, 5,000kVA, 6,300kVA, 8,000kVA, 10,000kVA, 12,500kVA, 16,000kVA, 20,000kVA, 25,000kVA, and 31,500kVA. These transformers comply with IEC 60076, GB1094 and GB/T6451. The on-load voltage regulation range is 35±2×2.5%kV, 38.5±2×2.5%kV, 35+3×2.5%kV, and 38.5+3×2.5% kV. Within this range, the output voltage stability is ensured through manual, electrical, or automatic adjustments using an on-load voltage regulator on the primary side. For transformers rated above 6,300kVA, a folding oil tank design is employed, which significantly enhances the mechanical strength of the tank, reduces welds, and improves the overall appearance quality of the transformer. This product serves as an upgraded alternative, offering improved operational economic benefits.

The full inclined step joint design optimizes the flux path, eliminating local flux saturation at the core joints, thereby reducing no-load losses and currents while minimizing transformer noise. To enhance short-circuit resistance, pressure nails are strategically placed around the pressure plates, and support beams connect the upper and lower high and low voltage clips, ensuring the core remains structurally intact. Additionally, the core column surface is coated with specialized end face adhesive for silicon steel sheet , bonding the sheets together and solidifying the core into a single unit after curing. High-strength electrical laminated wood supports are used between the lower part of the body and the tank wall, ensuring reliable positioning of the lower section.

● GB1094.1-1996

● GB1094.3-2003

● GB/T6451-200

● Energy Efficiency

The 35kV oil-immersed transformer incorporates advanced energy-saving technology, effectively reducing energy consumption and improving efficiency. The core is constructed from high-quality cold-rolled silicon steel sheets, characterized by low loss, low noise, and high efficiency.

● Low Noise

 Utilizing high-quality windings and high-performance materials, the transformer operates with minimal noise. Its robust insulation system and reliable structural design ensure stable long-term operation, further reducing possibility of generating noise.

●High Reliability

The core is made from specially treated, low-loss, low-noise steel, providing excellent corrosion and heat resistance. This allows for reliable operation under harsh environmental conditions. High-quality materials and precise manufacturing ensure the transformer's reliability and longevity.

● Ease of Maintenance

The transformer's design facilitates easy maintenance and repair. An automatic protection system automatically disconnects the power supply in case of faults, preventing potential short circuits and fires caused by damaged components. Simple operations allow maintenance personnel to efficiently service the transformer, enhancing its usability.