Substation disconnecting link state detection method and system and intelligent terminal

Abstract

The invention relates to the technical field of power equipment state monitoring, in particular to a substation disconnecting link state detection method and system and an intelligent terminal, and the method comprises the steps: determining a disconnecting link image; determining individual information based on the disconnecting link image; based on the individual information, determining target line groups corresponding to the disconnecting links one by one; and performing included angle analysis based on the target line group, and outputting detection information based on an analysis result. The acquisition of the disconnecting link image is less affected by environmental factors such as temperature difference and humidity difference, subsequent analysis and judgment can be carried out based on the actual length direction of the movable part, and the detection accuracy is higher. And on the other hand, compared with a pressure sensor arranged on the disconnecting link in the prior art, the disconnecting link image acquisition device can be installed at a position far away from the disconnecting link to perform detection in a non-contact mode, maintenance and inspection are facilitated, and the method is more convenient and suitable for large-scale disconnecting link state detection.

Description

technical field [0001] The present application relates to the field of power equipment state monitoring technology, and in particular, to a method, system and intelligent terminal for detecting the state of a substation knife switch. Background technique [0002] Isolation switch, also known as knife switch, is a common device used in substations to isolate power and switch current circuits. Isolation switches include open type and closed type, and common open type isolation switches include knife switches. A large number of knife switches determine the on-off of each circuit in the operation of the substation. Therefore, in the safety inspection of the substation, it is necessary to monitor the switch state of the knife switch, that is, to detect and feedback the open and closed states of the knife switch. [0003] In the related art, a knife switch usually includes a knife arm and a contact provided at the end of the knife arm, the connection between the contacts is usual...

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Problems solved by technology

[0004] In view of the above technical solution, the inventor believes that because the mechanical parts of the knife switch are exposed to the outdoors for a long time, and the pressure sensor is operated outdoors for a long time, it is greatly affected by environmental factors such as humidity difference factors and temperature difference factors, and may be damaged. Affects the detection accuracy, and because the pressure sensor is installed on the knife gate, the maintenance cost is relatively high, and there are technical defects

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