The 4th 35KV oil-immersed transformer at Methanol Plant 4 of the Ningxia Baofeng project was hoisted into place
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On December 16, the fourth 35KV oil-immersed transformer at the Methanol Plant 4 of the Ningxia Baofeng project, managed by the Infrastructure Division, was successfully lifted into place. Each of these 35KV oil-immersed transformers weighs 20 tons and has a capacity of 20,000 KVA; they serve as key components of the power system in the methanol substation. In the complex conditions of low temperatures in winter and limited space in the Ningxia region, a new type of lifting machinery – a 320-ton telescopic crane – was utilized. Thanks to the precise positioning by technical personnel, as well as careful selection of the lifting equipment and advance planning of the procedures, it was possible to keep the lifting accuracy within 5 millimeters even in such extreme cold conditions. Compared to traditional installation platforms and winch positioning methods, it significantly saves labor and machinery costs. The successful completion of this lifting operation marks the connection of the 110kv to 35kv systems, laying a solid foundation for the subsequent phased commissioning of the electrical system, individual equipment testing, and the full-scale power supply to the installations.
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