Intelligent self-diagnosis medium-pressure vacuum circuit breaker

Abstract

The invention relates to an intelligent self-diagnosis medium-pressure vacuum circuit breaker, which is characterized in that a left rib plate in the framework of the breaker is provided with a real time supervision and diagnosis system circuit, a separating brake loop, a tank circuit and a closing circuit are internally sheathed with hall sensors, an operational power supply is connected with two divider resistance in parallel, a first camera and a second camera are arranged above a second compartment and a fourth compartment of the breaker, an operating mechanism is provided with a displacement pickup, a touch arm is posted with the temperature pickup, the hall sensor, the divider resistance and the two cameras, the output end of the displacement pickup is electrically connected with the real time supervision and diagnosis system circuit by respective interface circuits, the output end of the temperature pickup is connected with the input end of a signal acquisition module, the output end of the signal acquisition module is connected with the input end of the real time diagnosis and supervision system circuit by a pair of wireless transceiving module. The breaker has the advantages of fault self-diagnostic function, reliably avoiding the occurrence of accidents and the worsening of problems and guaranteeing the stability of a power system.

Description

technical field [0001] The invention relates to an intelligent self-diagnosing medium-voltage vacuum circuit breaker, which has the functions of real-time on-line monitoring of its working state and fault self-diagnosis, and belongs to the technical field of switchgear in the process of high-voltage power transmission and distribution. Background technique [0002] The circuit breaker is the most important control device in the power system, and it is also the most frequently operated equipment. It has a high failure rate during operation. Once the circuit breaker fails, it is easy to cause a grid accident and cause major economic losses. Currently widely used circuit breaker maintenance methods include regular maintenance and troubleshooting. Regular maintenance lacks pertinence, often resulting in a great waste of manpower and material resources. At the same time, due to excessive maintenance, it may also bring new safety hazards; fault maintenance cannot detect equipment ...

AI Technical Summary

Problems solved by technology

Since it does not have a fault detection function, the mechanical faults of the internal operating mechanism of the circuit breaker can only be checked during regular maintenance, and the existing safety hazards can only be judged by experience

Even the existing monitoring devices have defects such as low degree of automation, large measurement errors, and immature technology, and most of them are discrete monitoring units. Each parameter measurement unit lacks an organic combination with the circuit breaker, and cannot provide a complete fault diagnosis. organic criterion

In actual use, a large number of control and data lines are connected between the circuit breaker and the measurement unit, which not only affects the appearance, but also affects the reliability of the system

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