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

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.

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...

AI Technical Summary

Problems solved by technology

[0003] At present, there is no effective monitoring method for mechanical jamming faults of high-voltage disconnectors at home and abroad. It can only rely on the existing quality and anti-corrosion performance of the products and the subjective experience and technical capabilities of on-site staff. It is impossible to judge potential mechanical faults in a timely and accurate manner. However, the operation failed due to mechanical failure, which seriously affected the reliability of power supply and the safe operation of the power grid.

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