Isolating switch operating mechanism with mechanical jam detection function and application method thereof

A technology of isolating switch and operating mechanism, which is applied in the field of fault detection and diagnosis of isolating switch transmission parts, can solve problems such as operation failure, inability to accurately judge mechanical faults in time, affect power supply reliability and safe operation of power grid, and achieve the goal of improving power supply reliability Effect

CN109738181AActive Publication Date: 2019-05-10STATE GRID HUNAN ELECTRIC POWER +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-10

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Abstract

The invention discloses an isolating switch operating mechanism with a mechanical jam detection function and an application method thereof. The isolating switch operating mechanism comprises an isolating switch operating mechanism body with a rotatable output shaft. A torque and rotation angle measurement unit is set on the output shaft. A data receiving device is set in the isolating switch operating mechanism body. The torque and rotation angle measurement unit and the data receiving device are connected through utilization of a wireless network. The application method comprises the steps ofcarrying out switch-off and switch-on operation, detecting torque and a rotation angle of the output shaft of a tested high voltage isolating switch through utilization of the torque and rotation angle measurement unit, and generating actually measured torque and rotation angle data; and comparing the actually measured torque and rotation angle data with preset torque and rotation angle data of anormal state, and determining whether a mechanical jam fault occurs in the tested high voltage isolating switch or not. According to the isolating switch operating mechanism and the application method, online monitoring and diagnosis of mechanical jam of the isolating switch can be realized, the mechanical jam can be discovered and processed early, scientific basis for condition based maintenanceis provided, and daily operation state evaluation basis for equipment also can be provided.
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Description

technical field

[0001] The invention relates to the field of fault detection and diagnosis of transmission parts of an isolating switch, in particular to an operating mechanism of an isolating switch with a mechanical jamming detection function and an application method thereof. Background technique

[0002] The transmission link of the outdoor isolating switch is directly exposed to the atmosphere and is exposed to the sun and rain. The transmission joints are prone to jamming due to corrosion, dust and lubrication failure, resulting in frequent failures that cannot be opened and closed, seriously threatening the safe and reliable operation of the power grid. . However, the jamming of the transmission joint is not formed overnight, it is a slow process from quantitative change to qualitative change. Only by monitoring the degree of jamming at any time, when the jamming occurs enough to affect the opening and closing of the isolating switch, alarm and timely maintenance can...

Examples

Embodiment Construction

[0031] Such as figure 1 , figure 2 with image 3 As shown, the isolating switch operating mechanism with mechanical jamming detection function in this embodiment includes a isolating switch operating mechanism body 1 with a rotatable output shaft 10, and the output shaft 10 is provided with information for collecting the torque and rotation angle of the output shaft 10 The torque angle measurement unit 2, the isolation switch operating mechanism body 1 is provided with a data receiving device 3 for receiving and forwarding torque and angle information, the torque angle measurement unit 2 and the data receiving device 3 are connected through a wireless network, and the mechanism is divided When the switch is closed, the main shaft rotates ±180°. If the signal transmission between the torque angle measurement unit 2 and the data receiving device 3 is transmitted by a cable, the cable is easy to break. Wireless transmission can solve this problem.

[0032] Such as figure 2 A...