Switch cabinet test auxiliary short-circuit wire tool
A short-circuit and switchgear technology, applied in the field of switchgear test auxiliary short-circuit, can solve the problems of unstable contact resistance of test clips and fluctuation of test results, and achieve the effects of stable contact resistance, high contact reliability and convenient use.
Active Publication Date: 2021-01-01
GUIZHOU POWER GRID CO LTD
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Problems solved by technology
[0003] During the test of the circuit resistance of the trolley switch, the contact resistance of the test clip caused by the unstable contact resistance of the test clip caused by the spring contact of the switch being upturned in different directions when clamping, resulting in fluctuations in the test results
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0024] Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0025] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clock...
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The invention discloses a switch cabinet test auxiliary short-circuit wire tool. The tool comprises a trolley switch moving contact and a contact plug. The interior of the trolley switch moving contact is fixedly connected with a conductive surface, the contact plug comprises a handle, one side of the handle is fixedly connected with a conductive column, and the interior of the conductive column is provided with a cavity; and four movable blocks are arranged in the cavity, trapezoidal blocks are fixedly connected to the adjacent sides of the four movable blocks, and one ends of the four movable blocks are hinged to the edge of the conductive column. By rotating a knob, the movable column drives a stud to move towards the interior of the cavity, and then the trapezoidal blocks at one ends of the four movable blocks are extruded so that the four movable blocks can expand outwards to be in full contact with the interior of the moving contact of the trolley switch, and therefore, stable contact with the conductive surface of the inner wall of the moving contact of the trolley switch is achieved; and a contact resistance is stable, and a measurement result is accurate.
Description
technical field [0001] The invention relates to the technical field of switch cabinet test auxiliary short wiring, in particular to a switch cabinet test auxiliary short wiring tool. Background technique [0002] The switch cabinet is a kind of electrical equipment. The external line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch, and each branch is set according to its needs. Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc., some also have high-voltage room and low-voltage room switch cabinets, high-voltage busbars, such as power plants, etc. Load shedding, the main function of switchgear is to switch, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The components in the switch cabinet are mainly composed of circuit breakers, disconnectors, load switches, operati...
Claims
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Login to View More IPC IPC(8): G01R1/04
CPCG01R1/0416G01R1/0408
Inventor 潘盛榕龙立勋房立伟何丹丹邹坤涛欧阳广山姚仕宁王秀境方学智
Owner GUIZHOU POWER GRID CO LTD