A kind of 800kv intelligent circuit breaker

Abstract

The present invention relates to a 800kv intelligent circuit breaker, comprising a circuit breaker body, and a protection, measurement and control system; the 800kv intelligent circuit breaker further comprises a state monitoring system. The state monitoring system comprises: a control cubicle being separated from the circuit breaker body and disposed locally, a state monitoring main IED being mounted in the control cubicle, state monitoring sub-IEDs of a corresponding phase being mounted in a mechanism case of each phase, the state monitoring sub-IEDs being connected in a communication manner to the state monitoring main IED, and the state monitoring main IED being connected to a state monitoring background system in a main control room through a fiber. The intelligent circuit breaker according to the present invention can fully monitor the device state, and different from the conventional device, does not perform regular maintenance if the device does not fail, while can make a reasonable maintenance arrangement according to an estimation result obtained by information collected by the system, thereby implementing condition-based maintenance. The used system scheme has a simple structure, has universality, and can be widely applied to other voltage-grade intelligent switchgears.

Description

technical field [0001] The invention relates to an intelligent circuit breaker, in particular to an 800kV intelligent circuit breaker. Background technique [0002] Traditional circuit breaker systems such as figure 1 As shown, it consists of traditional high-voltage switchgear, protection room and main control room on site. The secondary signals and other signals in the traditional high-voltage switchgear (such as the switching value information of the auxiliary contact of the isolation knife) are connected to the protection cabinet and the measurement and control cabinet in the protection room through cables. The protection cabinet is equipped with relevant protection equipment, which is responsible for protecting the circuit breaker, and at the same time uploads the information to the background system in the main control room through optical fiber. The measurement and control cabinet is mainly used to collect secondary signals, upload them to the background system, and...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an 800kV intelligent circuit breaker to solve the problem that there is no ultra-high voltage intelligent circuit breaker and no mature intelligent component installation method.

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