Alarm method for abnormal closing function of spring circuit breaker

Abstract

An alarm method for abnormal closing function of a spring circuit breaker, which monitors and judges the status of each operating stage of the spring circuit breaker, sends an alarm message before the closing function of the spring circuit breaker is abnormal, and at the same time sends out a specific alarm through the signal circuit Abnormal warning information. The steps are as follows: build a spring circuit breaker state monitoring circuit, including closing circuit, energy storage motor protection circuit, energy storage motor to form a series energy storage motor circuit, signal circuit and control circuit disconnection circuit; monitoring process and judgment process: spring After the closing operation of the circuit breaker, check whether the "spring circuit breaker control circuit disconnection signal" is active; check whether the "spring circuit breaker motor running signal" is active, check whether the "spring circuit breaker motor running signal" is reset, check Whether the "spring circuit breaker spring energy storage signal" is reset; check whether the spring circuit breaker is in the closed position.

Description

technical field [0001] The invention relates to an alarm method for abnormal closing function of a spring circuit breaker. Background technique [0002] Spring circuit breaker is a kind of power equipment commonly used in substations. It is used as an obvious disconnection point to effectively isolate live parts in substations from power supply lines. The operating circuit of the spring circuit breaker is precise and complex. Improper operation, untimely maintenance, abnormal circuit or large vibration may affect the closing function of the spring circuit breaker. Substation operators often encounter spring circuit breakers during operation. The failure of the second operation, the burning of the closing coil, the refusal of the spring circuit breaker and other abnormal conditions increase the difficulty of maintenance work, making it impossible for the substation to transmit timely power to the power supply line, causing users to transmit power late or cannot transmit power...

AI Technical Summary

Problems solved by technology

The operating circuit of the spring circuit breaker is precise and complex. Improper operation, untimely maintenance, abnormal circuit or large vibration may affect the closing function of the spring circuit breaker. Substation operators often encounter spring circuit breakers during operation. The failure of the second operation, the burning of the closing coil, the refusal of the spring circuit breaker and other abnormal conditions increase the difficulty of maintenance work, making it impossible for the substation to transmit timely power to the power supply line, causing users to transmit power late or cannot transmit power s consequence

At present, there is no method for alarming the abnormal closing function of the spring circuit breaker, and the operation failure frequency of the spring circuit breaker in the substation is relatively high

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