The 35kV Oil-Immersed Power Transformer is engineered for reliable performance in utility substations, industrial plants, and large commercial installations. Its advanced core uses high-grade cold-rolled silicon steel sheets to achieve exceptional energy efficiency, meeting the requirements of GB 20052-2020 Energy Efficiency Standards. The transformer features oil-immersed insulation for superior cooling and dielectric performance, ensuring long-term stability under continuous operation. The robust mechanical structure, combined with precise winding design, offers excellent short-circuit withstand capability. Applications include grid step-up/step-down operations, renewable energy integration, and industrial power distribution, making it a versatile choice for both urban and rural power systems.  

Technical Specifications – 35kV Oil-Immersed Power Transformer

Rated Capacity (kVA)	Level 1 No-load Loss (kW)	Load Loss (kW)	Level 2 No-load Loss (kW)	Load Loss (kW)	Level 3 No-load Loss (kW)	Load Loss (kW)	Short Circuit Impedance (%)
3150	1.7	20.7	2.0	20.7	2.4	21.9	7
4000	2.3	26.2	2.8	26.2	3.2	23.7	7
5000	2.6	32.6	3.2	32.6	3.8	29.7	7
6300	3.2	39.2	3.9	39.2	4.6	35.7	7
8000	4.0	48.4	4.7	48.4	5.8	38.5	8
10000	4.8	57.9	5.7	57.9	7.0	48.4	8
12500	5.5	69.2	6.5	69.2	8.0	51.1	8
16000	6.7	79.2	7.9	79.2	9.7	62.5	9
20000	8.0	94.4	9.4	94.4	11.5	73.5	9
25000	9.4	108.6	11.1	108.6	13.6	88.6	10
31500	13.2	134.6	15.6	134.6	18.0	109.4	10

 

About Manufacturer

WELTRUS (Hangzhou Weltrus New Energy Technology Co., Ltd.) is part of the Welfull Group, established in 1993, with an annual operating income exceeding 5.6 billion yuan. The company has extensive expertise in transformer manufacturing, energy storage, photovoltaic systems, and smart grid technologies. By leveraging advanced R&D and strict quality control, Weltrus delivers products that meet global standards for efficiency, safety, and durability, ensuring reliable operation in the world’s most demanding power environments.