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Earthing switch

A technology of grounding switch and rotating ground, which is applied in the direction of electric switch, switchgear, pull-out switchgear, etc., and can solve problems such as main circuit grounding fault accidents

Active Publication Date: 2012-09-19
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, in the prior art, the earthing switch can be operated at any time, even in the connection position and the test position, which leads to the earth fault accident with respect to the main circuit

Method used

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Examples

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Embodiment Construction

[0030] Exemplary embodiments will now be described in detail with reference to the accompanying drawings. In order to simplify the description with reference to the drawings, the same or equivalent components will be given the same reference numerals, and descriptions thereof will not be repeated.

[0031] In the following, reference will be made to Figure 1 to Figure 4 Describe the overall construction of a switchboard with a grounding switch.

[0032] According to an exemplary embodiment, the switchboard 100 with the grounding switch 30 includes a housing 10 (ie, a so-called box). The circuit breaker main body 20 of the vacuum circuit breaker may be incorporated into a central portion of the case 10 in the longitudinal direction, and the grounding switch 30 may be incorporated into one side of the lower portion of the case 10 . figure 1 or figure 2 shows the front of the grounding switch 30, and Figure 4 The interior of the enclosure 10 and the bracket 50 are shown wi...

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PUM

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Abstract

A ground switch is provided to prevent safety accidents by approaching to a driving shaft of the ground switch when permitting an operation of the ground switch. A binding plate is connected to the operation shaft to rotate together with the operation shaft. An electromagnetic lock assembly is installed in a location close to the binding plate. The electromagnetic lock assembly has binding location, wherein the electromagnetic lock assembly extends into a rotation track of the binding plate to bind the rotation of the binding plate; and release position, wherein the electromagnetic lock assembly extends from the rotation track of the binding plate to allow the binding plate to rotate.

Description

technical field [0001] The present invention relates to an earthing switch, and more particularly to a safety device capable of limiting the operation of the earthing switch without allowing the earthing switch to cooperate with a vacuum circuit breaker. Background technique [0002] A vacuum circuit breaker is an electrical device that performs connection and separation between contacts within a vacuum vessel, and is used for switching and protecting high or extra high voltages by virtue of excellent arc extinguishing performance that quickly extinguishes arcs generated in the circuit breaker power lines. [0003] Vacuum circuit breakers are often embedded in switchboards for operation, monitoring and control in power stations and substations together with multiple measuring units and relays such as digital relays. A vacuum circuit breaker generally includes a bracket and a circuit breaker body. A bracket having terminals that movably supports a circuit breaker body and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/04
CPCH01H33/6606H02B11/133H02B11/28H02B13/025
Inventor 杨弘益梁承必金仁谦安吉荣
Owner LSIS CO LTD
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