Substation circuit breaker electric heat tracing system working state monitoring method and system

Abstract

The invention provides a substation circuit breaker electric heat tracing system working state monitoring method and system. The method comprises the following steps that a transformer substation environment temperature curve and a circuit breaker temperature curve are obtained; based on the transformer substation environment temperature curve, the change rate and the real-time temperature of the transformer substation environment temperature at the current moment are obtained, and when the change rate and the real-time temperature of the transformer substation environment temperature both meet normal working conditions of a circuit breaker, the working state of an electric heat tracing system is adjusted in real time; and in the monitoring process of the working state of the electric heat tracing system, the change rate of the temperature of the circuit breaker at the current moment and the real-time temperature are obtained based on the temperature curve of the circuit breaker, and the working state of the electric heat tracing system is optimized and adjusted in real time. Based on the detection of the environment of a transformer substation and the real-time temperature of the circuit breaker, the real-time operation state of the electric heat tracing system is monitored, digital information acquisition is realized, the manual participation degree is reduced, the operation and maintenance cost is effectively reduced, and the safety and reliability of the operation of the transformer substation are improved.

Description

technical field [0001] The disclosure belongs to the technical field of substations, and in particular relates to a method and system for monitoring the working state of an electric heat tracing system of a circuit breaker in a substation. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] In order to ensure the safe operation of the substation circuit breaker in a low temperature environment, it is necessary to install an electric heating system to make the substation circuit breaker operate at a suitable temperature. The electric heat tracing system is used as the insulation material of the circuit breaker in the substation to avoid the temperature of the circuit breaker from being too low and not operating normally, which affects the reliability of the power system operation. After the electric heat tracing system is wound onto the circu...

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Problems solved by technology

Therefore, after the electric heat tracing system is put into use, the real-time operating temperature of the circuit breaker cannot be detected by direct touch or direct use of temperature measuring equipment. If the temperature of the circuit breaker is too low, it will directly affect the normal operation of the power system

[0004] For this reason, staff are required to conduct regular inspections to judge the working status of circuit breakers in substations, which brings higher work intensity to staff and increases the difficulty of operation and maintenance; manual inspections have the following problems:

[0005] First, the inspection is intermittent, and it is impossible to perform real-time inspection of each circuit breaker in the substation, and it is impossible to find problems in the electric heat tracing system in time, which directly affects the normal operation of the substation;

[0006] Second, the work intensity is high, and the cost of manual operation and maintenance is high;

[0007] Third, when the electric heating system is installed in a high or dangerous place, it is not convenient for inspection;

[0008] Fourth, there is a lack of quantitative analysis of the real-time operating data of the electric heat tracing system

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