Contact engagement force detection device and platform

Abstract

The invention provides a contact engagement force detection device and a platform. The contact engagement force detection device comprises a resistance strain type sensor and a display panel. The shape of the outer surface of the resistance strain type sensor is matched with the shape of the inner wall of a plum blossom-shaped contact, the sensor is deformed when an external force applied by the plum blossom-shaped contact acts on the sensor, and the magnitude of the external force is calculated according to the deformation. The display panel is electrically connected to the resistance strainsensor for displaying the magnitude of the calculated pressure. Due to the fact that the shape of the outer surface of the resistance strain type sensor is matched with the shape of the inner wall ofthe plum blossom-shaped contact, the magnitude of the external force can be calculated according to the deformation, so that when the engagement force of the plum blossom-shaped contact needs to be detected, only the resistance strain type sensor is connected with the plum blossom-shaped contact, the actual engagement force of the plum blossom-shaped contact can be displayed in the display panel,and accurate, convenient and intuitive measurement of the engagement force between a movable static and a static contacts is realized.

Description

technical field [0001] The invention relates to the technical field of measuring instruments, in particular to a contact engagement force detection device and platform. Background technique [0002] Armored removable AC metal-enclosed switchgear (hereinafter referred to as KYN cabinet), the main circuit switch is designed as a removable trolley type, which can greatly shorten the fault recovery time, improve the reliability of power supply, and provide convenience for circuit breaker maintenance. Therefore, it is widely used in medium voltage power grids. In the KYN cabinet, the static contact and the moving contact of the movable trolley are used to form a movable connection design. This movable connection design requires that the movable and static contacts have sufficient engagement pressure to reduce the contact resistance of the connection and thus reduce the operating time. At the same time, it also overcomes the electromotive force generated under various working con...

AI Technical Summary

Problems solved by technology

However, at present, there is no way to directly and accurately measure the contact pressure of the switch trolley. We can only observe the appearance of the bundled spring with the naked eye, and it is impossible to accurately judge whether the performance of the switch trolley contact meets the design requirements and whether it can be continuously put into operation.

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