Product Model:​ SZ11-50000/110

Rated Capacity:​ 50/50 MVA

Voltage Combination:​ 110±8×1.25% / 10.5 kV

Cooling Method:​ ONAN (Oil Natural Air Natural)

Vector Group:​ YNd11

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The SZ11-50000/110 power transformer, designed and manufactured by our company, has successfully passed the short-circuit withstand verification test of State Grid Corporation of China (SGCC) and the 110 kV transformer qualification review of China Southern Power Grid. It has also smoothly passed the SGCC short-circuit withstand spot-check test, with all performance indicators exceeding contractual and standard requirements.

The product features a rational structure, reliable insulation, low losses, low partial discharge, low temperature rise, low noise, strong short-circuit withstand capability, strong lightning impulse withstand capability, and zero oil leakage.

This transformer model is a mass-produced product of our company, with an annual output of over 100 units. It is widely applied in industries such as steel, petroleum, chemical, coal, hydropower, wind power, and photovoltaic power generation.

Leveraging the typical SZ11-50000/110 transformer, our company won bids totaling RMB 290 million in the 2019 State Grid 110 kV transformer project tenders, ranking second in the industry in terms of contract value at this voltage level. Meanwhile, the company continues to expand into enterprise and export markets. In 2019, the company’s 110 kV transformer orders reached 472 units, with sales revenue of RMB 900 million, maintaining a leading position in the industry.

The reliable design and rapid response capability with a 40-day delivery cycle ensure safe on-site operation of the products, earning unanimous praise from customers with a 100% satisfaction rate. This has greatly consolidated the company’s leading position in the 110 kV power transformer industry.