Method for transferring operation by adopting low-voltage temporary measure box

Abstract

The invention discloses a method for transferring operation by adopting a low-voltage temporary measure box in the field of electric power engineering. Aiming at a low-voltage switch cabinet transformation project in a power distribution station, two low-voltage temporary measure boxes are matched with a No.1 transformer and a No.2 transformer to respectively supply power for continuous five daysin different time periods, so that the power supply reliability can be improved, the power failure time can be shortened, and the power supply requirement during shop project transformation can be metby a flexible, economic and reliable method.

Description

technical field [0001] The invention relates to a method for power supply transfer operation using a low-voltage temporary treatment box used in the field of electric power engineering. Background technique [0002] The emergency generator vehicle equipment is mainly used as a backup power supply during power outage maintenance. It transfers power supply to the lines and equipment outside the faulty equipment to realize power supply to users. So far, all users have resumed power consumption. The actual operation environment is relatively complex, especially in densely populated urban areas, the application of emergency generator vehicles will be subject to various restrictions, and the more detailed issues are as follows: [0003] (1) The generator car is a mobile operation. When replacing the low-voltage switchgear and requiring temporary protection and power supply, due to the limitation of operating conditions, employees can only connect the cables of the generator car an...

AI Technical Summary

Problems solved by technology

[0003] (1) The generator car is a mobile operation. When the low-voltage switchgear needs to be temporarily protected for power supply, due to the limitation of operating conditions, employees can only connect the cable of the generator car and the cable on the user side on site.

In addition, the construction personnel are not familiar with the actual environment, and it is difficult to find the access location, which will not only increase the working time, but also increase the workload, slow down the construction pace, cause the power supply time to be delayed, and thus cannot quickly provide emergency power supply;

[0004] (2) At present, there are many old residential areas in the urban area, and the roads are narrow. Because of the consideration of power generation efficiency, the body of the generator car is huge, and it may be difficult to enter the residential area. It can only be connected by a long cable at a long distance, but the long cable may not have a corresponding channel, causing people Security problems occur in communities with relatively large traffic;

[0005] (3) The emergency generator car has only one outgoing line, while the low-voltage has six outgoing lines. Therefore, when using a generator car to supply power, multiple generator cars need to be dispatched at the same time, and most old urban areas cannot provide parking positions for multiple generator cars;

[0006] (4) The power generation capacity of a generator car is about 400kW and there is only one outlet. Therefore, multiple generator cars need to be dispatched for each task, and the cost of each generator car for a single task is about 5,000 yuan. Considering that the generator car The loss is larger, so the overall cost is higher