Trip system of total residual current operated protector of distribution area and application method thereof

Abstract

The invention discloses a trip system of a total residual current operated protector of a distribution area and an application method thereof. The system comprises: an intelligent distribution terminal, which is in bidirectional connection with a master station through a remote communication network; a plurality of collectors; a trunk line; a branch line; protectors, which are arranged on the trunk line and the branch line, wherein the plurality of collectors are in series connection with the protectors. The collectors are connected with the intelligent distribution terminal through a local communication network. And a user terminal is connected with an end of the branch line. According to a technical scheme provided in the invention, the electric power maintainer can have clear purposiveness and pertinency and all branch lines can be cut off accurately, so that a problem that a general protector can not be closed can be solved; meanwhile, a switching frequency of the general protector can be substantially reduced; the number of inconvenience for a normal life of a user can be reduced; and occurrences of mechanical or electrical faults in the protector can be avoided; therefore, security of a power grid can be improved.

Description

technical field

[0001] The invention belongs to the field of electric power, and relates to a tripping system for a current-operated protector and an application method thereof, in particular to a tripping system for a total residual current-operated protector in a distribution station area and an application method thereof. Background technique

[0002] Installing residual current operating protectors in low-voltage distribution networks as an important backup protection method for safety technical measures has a significant effect on preventing personal electric shock casualties, electrical equipment damage accidents, ground faults, and electrical fire accidents. However, at present, the residual current operated protector has the problem of frequent tripping of the general protector in the station area during operation, which makes it difficult to put it into operation, especially in the humid coastal areas and the rainy and humid weather in the north, this situation occur...

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