Pressure measurement device and measurement method of high-voltage switch contact

Abstract

The invention discloses a pressure measurement device and measurement method of a high-voltage switch contact. The measurement device comprises a linear motor dual-driving mechanism, a pressure measurement mechanism and a displacement detection mechanism, wherein the linear motor dual-driving mechanism is used for driving the displacement detection mechanism to move, the displacement detection mechanism is used for detecting distance between two touch fingers when a high-voltage switch of the high-voltage switch contact is in a closing state, the linear motor driving mechanism is further usedfor driving the displacement detection mechanism to make the two touch fingers of the high-voltage switch contact recovered at positions where the high-voltage switch is in the closing state when thehigh-voltage switch is in a breaking state, the pressure measurement mechanism is used for detecting contact pressure of the high-voltage switch contact when the touch fingers of the high-voltage switch contact are recovered to the positions of the closing state. With the measurement device disclosed by the technical scheme, automatic fastening and automatic measurement of the high-voltage switchare achieved, the measurement accuracy is improved, the applicability is improved, and high-voltage power transmission reliability of the isolation switch and the safety of a grounding switch are improved.

Description

technical field [0001] The invention relates to the technical field of high-voltage switch detection, in particular to a high-voltage switch contact pressure measurement device and a high-voltage switch contact pressure measurement method. Background technique [0002] High-voltage switches are the most widely used electrical equipment in power systems, usually including high-voltage disconnectors and high-voltage grounding switches. [0003] The high-voltage isolating switch is located in the high-voltage transmission line and is responsible for the transmission of thousands of amperes. It is usually installed outdoors. The working conditions are relatively harsh, and failures and accidents occur frequently. Through statistics, it is found that heating and overheating are the main reasons for frequent failure or even damage accidents of high-voltage disconnectors. The overheating failure of the high-voltage isolating switch is mainly related to the contact area between the...

AI Technical Summary

Problems solved by technology

[0006] Aiming at at least one of the above-mentioned problems, the present invention provides a high-voltage switch contact pressure measurement device and measurement method, through the double-drive mechanism of the linear motor, the automatic tightening and automatic measurement of the high-voltage switch are realized, which reduces the pressure caused by manual participation. The problem of excessive error has improved the measurement accuracy; and it can meet the measurement of various switch contacts with different structures. The pressure measurement mechanism designed based on the principle of constant bending moment of parallel beams has realized the free extension of the support bar, which can meet the current requirements. The contact pressure measurement of most high-voltage disconnectors and high-voltage grounding switches improves the reliability of high-voltage transmission of disconnectors and the safety of grounding switches

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