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Alarm method for abnormal closing function of spring circuit breaker

A circuit breaker and spring-type technology, which is applied in the field of abnormal alarm of spring-type circuit breaker closing function, can solve the problem of improper operation, untimely maintenance affecting the closing function of spring-type circuit breaker, and high frequency of operation failure of spring-type circuit breakers in substations , spring circuit breaker complex operation circuit and other problems, to achieve the effect of saving maintenance costs, facilitating analysis and processing, and improving the efficiency of maintenance work

Active Publication Date: 2022-02-22
JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Alarm method for abnormal closing function of spring circuit breaker
  • Alarm method for abnormal closing function of spring circuit breaker
  • Alarm method for abnormal closing function of spring circuit breaker

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Embodiment Construction

[0045] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0046] The method of alarming the abnormality of the closing function of the spring circuit breaker is as follows:

[0047] 1. Build a spring circuit breaker status monitoring circuit:

[0048] 1.1 Use loop power supply 1, air switch 1, control switch, closing coil, and normally closed nodes of the energy storage relay in series to form a closing circuit (such as figure 1 shown), when the closing coil is excited, the circuit breaker will be closed;

[0049] 1.2 Use loop power supply 2, air switch 2, spring state travel switch, energy storage relay, energy storage relay normally open node and motor relay; among them, the energy storage relay normally open node and the motor relay are connected in parallel with the energy storage relay after being connected in series with the motor relay, and then connected with the The air switch 2 and the circuit power supply ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327G01M13/00H01H71/04G08B29/06
CPCG01R31/327G01M13/00H01H71/04G08B29/06
Inventor 韩锦刚梁浩赵阳陈立吉母锐
Owner JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
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