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An on-line monitoring system and method for a disconnector based on a pull-wire sensor

A technology of isolating switch and monitoring system, applied in the direction of circuit breaker testing, etc., can solve the problems of unguaranteed safety, and achieve the effect of improving efficiency, simple structure and expanding adaptability

Active Publication Date: 2018-12-28
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this process, the power system is running with problems, and the safety cannot be guaranteed

Method used

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  • An on-line monitoring system and method for a disconnector based on a pull-wire sensor
  • An on-line monitoring system and method for a disconnector based on a pull-wire sensor

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0026] The invention relates to an on-line monitoring system for a disconnector based on a pull-wire sensor, comprising a motor current measurement module, a mechanism output angle measurement module, a data acquisition front-end module, a host computer module and a mechanism operation signal measurement module.

[0027] Wherein, the motor current measurement module is used to measure the current of the motor, and transmit the measured current data to the data acquisition front-end module. The motor current measurement module includes multiple split current transformers. The split current transformers are clamped on the power line of the motor. It is not necessary to change the original measured...

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Abstract

The invention discloses a disconnecting switch online monitoring system and method based on a guyed sensor. The disconnecting switch online monitoring system comprises a motor current measuring module, a mechanism output angle measuring module, a data collection front-end module and an upper computer software module. The motor current measuring module is used for measuring the current of a motor. The mechanism output angle measuring module is used for measuring an output angle of a disconnecting switch operating mechanism. The data collection front-end module is used for storing various kinds of received data. The upper computer software module is used for judging whether the received data is qualified and establishing a database according to arisen faults and fault solving methods. The system provided by the invention has the advantages that the structure is simple, the installation structure of on-site power station equipment in operation is not affected by the installation of the system, a unified method is used for precisely measuring the output angle of the disconnecting switch operating mechanism, the operation state of a disconnecting switch is monitored in real time, various kinds of test data and fault solving methods are accumulated in the database of an upper computer, and equipment can be repaired and maintained conveniently.

Description

technical field [0001] The invention relates to an on-line monitoring system, in particular to an on-line monitoring system and method for a disconnector based on a pull-wire sensor. Background technique [0002] Since the open isolating switch operates outdoors, the transmission parts and the contacts of the knife switch are exposed to the atmosphere for a long time, and the transmission parts will gradually oxidize, rust, and loosen. These problems will cause the opening and closing of the knife switch to be blocked during operation. Or not in place, transmission parts deformation, breakage and other failures, which bring inconvenience to the on-site operation and pose a certain threat to the safety of the power grid. The usual solution is to observe with human eyes during routine inspections to see if there are defects in the transmission parts or knife switches, and whether they are necessary for maintenance. Often, it can only be discovered when the problem develops to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
Inventor 卞超关为民孙勇军钱聪王国良
Owner STATE GRID CORP OF CHINA
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