An adapter device for testing the mechanical characteristics of switches

Abstract

The invention discloses an adapter device for testing the mechanical characteristics of a switch, which comprises upper and lower shells and an adapter circuit arranged inside the shell; the upper and lower shells are connected by a hinge; the adapter circuit arranged inside the shell includes an input Test signal transfer circuit, closing test transfer circuit, two-way opening test transfer circuit and energy storage motor power transfer circuit; the input test signal transfer circuit is composed of the closing signal input jack H, the opening signal The input jack F and the common end jack G1 are composed; the closing test transfer circuit is composed of three jacks A, B, C and a common end jack G2. The two opening test transfer circuits have the same structure ; The wiring of the present invention is reliable, safe and fast, and effectively solves the potential safety hazards that may be caused by the original wiring method.

Description

technical field [0001] The invention relates to a switching device used for testing the mechanical characteristics of a switch, which is especially suitable for switch testing of medium and high voltage electricity. Background technique [0002] When testing the mechanical characteristics of high-voltage electrical switches, the traditional connection method mostly uses alligator clip wiring. The hidden dangers and shortcomings of this connection method are as follows: (1) Improper clamping will easily lead to poor contact, and the measured data will be inaccurate. Or the phenomenon that the loop is blocked and no data is available, which makes it impossible to carry out normal testing, prolongs the testing time, and reduces work efficiency. (2) The outgoing wires leading to the mechanism side of the switch mechanism cabinet are mostly on the upper side of the terminal block, and its joint direction is downward. Due to the downward direction, the "wire number identification...

AI Technical Summary

Problems solved by technology

[0002] When testing the mechanical characteristics of high-voltage electrical switches, the traditional connection method mostly uses crocodile clip connection. The hidden dangers and shortcomings of this connection method are as follows: (1) Incorrect clamp connection can easily lead to poor contact, and the measured data will be inaccurate Or the phenomenon that the circuit is blocked and the data cannot be obtained, resulting in the inability to perform normal tests, prolonging the test time and reducing work efficiency

(2) Most of the outlets leading to the mechanism side of the switch mechanism cabinet are on the upper side of the terminal block, and its joint direction is downward. Since the end of the joint is marked with "line number mark", after removing this joint, Due to the downward direction, the "line number identification" at the end of the connector is easy to fall off and be lost. This phenomenon will easily lead to: wrong wiring when restoring the wiring; difficulty in troubleshooting the secondary circuit and prolonging the troubleshooting time; loss of the "line number identification" Afterwards, if the site cannot re-sign in time, the cable will not be clearly marked, and the cable will be checked from the beginning to confirm the connection direction of the cable

(3) Some crocodile clips are not completely insulated. During the clip test, it is easy to short-circuit with other terminals and cause "blasting" or short-circuit safety hazards, especially the switch mechanism box with a busbar of 220kV is designed in phase separation. Since the mechanical characteristics test of the three phases is performed at the same time, more clips need to be clamped, so short-circuit accidents are more likely to occur; (4) When testing the switch mechanism box with a bus bar of 220kV, because the switches are arranged in separate phases, when testing the switch points, When closing the switch, it is necessary to frequently reverse the wiring, and during the period, it will not be able to perform normal tests due to unreliable clamping, which greatly reduces the work efficiency.

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