Three-station isolating switch and working method thereof

A technology of isolating switch and isolating grounding switch, applied in the field of ring network switchgear, can solve the problems of low power frequency withstand voltage value, unreasonable structural design of three-position isolating switch, large partial discharge value, etc., and achieve stable and reliable operation. Effect

Pending Publication Date: 2020-08-28
JIANGSU LUOKAI MECHANICAL & ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a three-position isolating switch and its working method, to solve the un

Method used

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  • Three-station isolating switch and working method thereof
  • Three-station isolating switch and working method thereof
  • Three-station isolating switch and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] A working method using the three-position isolating switch in Embodiment 1:

[0106] Closing of the isolating switch: the upper driving mechanism drives the isolating movable contact seat 21 to move in the installation cavity 53 of the isolating grounding switch of the solid-sealed pole 51. An input terminal of the output bus 522, so that the isolating switch enters the closing position;

[0107] Opening of the isolating switch: the upper driving mechanism drives the isolating movable contact seat 21 to move away, so that the isolating switch enters the opening position;

[0108] Isolation switch grounding: the lower drive mechanism drives the grounding rod 31 to move in the isolation grounding switch installation cavity 53 of the solid-sealed pole 51. When the front end of the grounding rod 31 moves to the input end of the first output bus 522, the isolation The switch is switched from the opening position to the grounding position.

[0109] The working method of the...

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Abstract

The invention relates to a three-station isolating switch and a working method. The three-station isolating switch comprises a solid-sealed polar pole. An input bus, a first output bus, a second output bus and a vacuum arc-extinguishing chamber are integrally poured in the solid-sealed polar pole; an isolation grounding switch mounting cavity is formed in the solid-sealed polar pole; the isolatingmovable contact seat moves to the output end of the conducting input bus and the input end of the first output bus, so that the isolating switch enters a switching-on position; the isolation moving contact seat is moved away, so that the isolation switch enters an opening position; and the grounding rod is movably arranged in the isolation grounding switch mounting cavity, the rear end of the grounding rod is in conduction connection with a grounding wire, and the front end of the grounding rod moves to the input end in conduction connection with the first output bus, so that the isolation switch is switched from the opening position to the grounding position. According to the solid-sealed polar pole, the isolating switch is optimized and designed again, so that the partial discharge value of the solid-sealed polar pole is smaller, the power frequency withstand voltage value of the solid-sealed polar pole is higher, the size of the solid-sealed polar pole is reduced, and the problemsof large partial discharge value and low power frequency withstand voltage value are solved.

Description

technical field [0001] The invention relates to the field of ring network switch cabinets, in particular to a three-position isolating switch and a working method thereof. Background technique [0002] The current solid-sealed pole, such as the authorized announcement number CN104201041B published in the Chinese patent literature, the authorized announcement date is 2015.10.21, and the patent name is "combined solid-sealed pole and its working principle", which includes The three-position isolating grounding switch and vacuum interrupter assembly in the pole-sealing column drive a moving contact sleeve to reciprocate between the outlet seat, the left and right static conductive seats, and the grounding seat through a screw rod to realize circuit breaker Three-position operation; in this kind of solid-sealed pole, since the moving contact sleeve is driven by the screw to move, the solid-sealed pole manufactured will be relatively long (because it needs to accommodate the scre...

Claims

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Application Information

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IPC IPC(8): H01H33/52H01H33/666H01H33/662H01H9/26
CPCH01H9/26H01H33/52H01H33/662H01H33/666
Inventor 陈跃欣闫涛
Owner JIANGSU LUOKAI MECHANICAL & ELECTRICAL
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