10KV electric network terminal disconnection control system

Abstract

The invention pertains to the technical field of power network control, in particular to a control system for the disconnection of a 10kV power network terminal. The technical proposal of the control system for the disconnection of the 10kV power network terminal comprises the 10kV power network terminal, a distribution transformer, a falling safety brake connected between the 10kV power network terminal and the distribution transformer, a low-voltage line for the output of the distribution transformer, a line connected with load and a switch mechanism connected between the low-voltage line and the line connected with the load; the upper end of the falling safety brake is provided with a spring sheet and a tripping mechanism which are matched with the end part of a brake tube; the tripping mechanism is connected with the end part of a leverage provided with a fulcrum; the other end of the leverage is controlled by an alternating current contactor; a control mechanism is arranged between the alternating current contactor and the low-voltage line for the output of the distribution transformer. The system can solve the problem that thousands of seasonal or temporary client ends are likely to cause a distribution transformer connected under a high-voltage end to be in the state of no-load operation for a long time; the system also has the advantages of simple line control and convenient maintenance.

Description

technical field [0001] The invention belongs to the technical field of power grid control, and in particular relates to a power grid control system capable of disconnecting a high-voltage drop safety switch when the low-voltage power grid has no load. Background technique [0002] At present, my country's electric power industry has developed rapidly. In order to reduce the loss of electric energy caused by long-distance electric energy transmission of low-voltage lines, tens of thousands of 10KV high-voltage terminals are spread throughout every corner of the country. However, there are tens of thousands of seasonal or temporary user terminals in the 10KV high-voltage end mentioned above. If the management is not good, the distribution transformer connected to the high-voltage end will be in the state of no-load operation for a long time, and a large amount of electric energy will be consumed. The consumption of idling transformers will not only cause great economic losses ...

AI Technical Summary

Problems solved by technology

However, there are tens of thousands of seasonal or temporary user terminals in the 10KV high-voltage end mentioned above. If the management is not good, the distribution transformer connected to the high-voltage end will be in the state of no-load operation for a long time, and a large amount of electric energy will be consumed. The consumption of idling transformers will not only cause great economic losses to power companies, but also cause environmental pollution in a certain sense.

[0003] After searching, no 10KV power grid terminal disconnection control system for cutting off the safety gate has been found so far

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