Urumqi, April 10 (Tian Yu, Guo Zi, Yi Qiang, Ji Qiang) Xinjiang Hami City Power Supply Bureau on the 10th news, not long ago in Hami Yizhou District Taogong Town, State Grid Hami Power Supply Company successfully implemented the first comprehensive power failure transformer replacement operation in Xinjiang. The operation spared power users along the line from power outages.
Transformer is the core of regional power supply network, which is responsible for high and low voltage transformation of regional power network. In recent years, with the continuous increase of social electricity consumption, transformers often need to be replaced frequently according to local electricity consumption.
State Grid Hami power supply company urban power supply center distribution live operation class monitor Wang Yang said, the former transformer replacement must be accompanied by power failure. Taking the replacement of small ordinary transformers as an example, it usually requires 4-6 hours of power outage in the regional power grid, which has a certain impact on the production and life of local residents. However, the whole process of transformer replacement has achieved “zero power outage”.
In the construction, the workers first use the same principle and transformer mobile box transformer connected through flexible cables, as external equipment to assume the role of temporary replacement transformer. Then the original capacity of 200 kV A transformer is separated from the power grid, dismantled, replaced with a new capacity of 400 kV A transformer into the grid grid. Finally, the temporary flexible cable is removed to complete the separation of the mobile box and the transformer, and the transformer replacement is realized under the “zero perception” state of the power user. During the period, in order to solve the inconvenience of the formal transformer hoisting, mechanized forklift truck was innovatively adopted to cooperate with the operation, and the transformer fork mounting task was carried out safely, quickly and conveniently.
Su Jia, director of distribution network management department of State Grid Xinjiang Electric Power Co., Ltd., said, “The transformer replacement without power failure is one of the most technically difficult comprehensive operation projects without power failure at present, which involves many devices and complicated procedures. With the growing maturity of power grid live operation, we will vigorously promote the wide application of various new equipment and new technology in live operation throughout Xinjiang in the later stage, and constantly improve the reliability of residential electricity.”
We have learned, in order to ensure the work smoothly, its hami power supply company in the early organized many field exploration, research, training, and make the detailed construction plan, standardized work instructions, etc., invited many times between the expert guidance, drills, ensure all the process control, no dead Angle.