Device for measuring insertion depth of contact finger of handcart switch contact

Abstract

The invention discloses a device for measuring insertion depth of a contact finger of a handcart switch contact in the technical field of correlation laser measurement. The device comprises a bridle, a laser correlation array module and an information processor, the two ends of the bridle are connected through a connecting piece to form an annular structure, the laser correlation array module comprises a plurality of sets of laser transmitting tubes and laser receiving tubes which are in one-to-one correspondence, each set of laser transmitting tubes and laser receiving tubes form a laser correlation unit, the laser transmitting tubes and the laser receiving tubes are spirally arranged on the inner walls of the two sides of a circular ring structure formed by the bridles respectively, and the information processor is arranged in the middle outside the bridle; and the laser correlation array module is electrically connected to the information processor. The whole device is simple in structure and convenient to operate, the position change of the moving contact in the static contact can be monitored in real time, the measurement result is accurate, and accurate and reliable contact of the moving contact and the static contact of the handcart type circuit breaker is guaranteed.

Description

technical field [0001] The invention relates to the technical field of through-beam laser measurement, in particular to a device for measuring the insertion depth of a handcart switch contact finger. Background technique [0002] In the operation of high-voltage switchgear, the handcart switch moves from the test position to the working position, and the handcart switch is hand-operated. When the moving contact enters the static contact, it starts counting, and the journey until it reaches the working position is called the meshing insertion depth of the moving and static contacts. . After the switchgear is newly installed, the meshing depth of the moving and static contacts of the handcart circuit breaker must be checked. The meshing depth of the moving and static contacts of the 10kV~35kV handcart circuit breaker is 15~30mm, and the measurement size must be accurate to the millimeter level. The traditional measurement method is: apply a small amount of Vaseline on the sta...

AI Technical Summary

Problems solved by technology

The data error of this original measurement method is very large, especially in the summer high temperature season, when the temperature is above 35°C, the vaseline liquefies, and there are no traces or even indentations, which brings great difficulties to the on-site measurement and acceptance.

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