From January 28th to 31st, the first batch of 500kV main transformers (phase B c) and plant transformers (A B) of Unit 1 of the Sanao Nuclear Power Project successfully arrived at the Sanao Nuclear Power Base and were put in place to the 1BTA transformer platform, marking that the progress of the main power supply project of Unit 1 of the Sanao Nuclear Power Project has entered a new stage and laying a good foundation for ensuring the smooth progress of the construction of Unit 1.
Phase C of the main transformer is in place to the 1BTA platform.
The main transformer of Unit 1 is manufactured by TBEA Shenyang Transformer***, hereinafter referred to as "Shenyang Transformer"). During the grid-connected operation of the unit, the main transformer is responsible for boosting the 24kV electric energy of the generator set to 500kV, and sending the electric energy out through the switch station and line to create power generation benefits; During the commissioning and overhaul of the unit, the main transformer undertakes the function of "reverse power transmission", reduces the power of the external power grid to 24kV, and cooperates with the plant transformer to ensure the commissioning progress of the unit in the engineering stage and the safe and stable operation of the unit in the commercial operation stage.
The transformer for Unit 1 is manufactured by Xi'an Xidian Transformer Co., Ltd. (hereinafter referred to as "Xibian"), which is responsible for reducing the power of the generator set from 24kV to 10kV, supplying power to the equipment of the unit, ensuring the safe and stable operation of the unit, and ensuring nuclear safety.
Factory test of main transformer.
In the process of equipment manufacturing, Cangnan Nuclear Power arranges long-term on-site supervision personnel to control the acceptance of raw materials for the main transformer and the quality of key processes of equipment manufacturing. In the factory acceptance of the equipment, the joint expert team of Cangnan Nuclear Power went to the Shenyang and Xichang to supervise and inspect to ensure that the performance parameters of each transformer meet the requirements of technical conditions, and lay a solid foundation for achieving the goal of high-quality production of the equipment.
The main transformer is unloaded.
The main factory substation installation team is fully prepared before transportation and hoisting, carries out the preparation of machinery and tools, transportation and hoisting work drills, etc., and does a good job in risk and quality control in the whole process of transportation and hoisting to ensure the successful completion of all aspects of the work.