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Interlock device for preventing double closing of automatic changeover switch

A technology of automatic transfer switch and interlocking device, which is applied in the direction of electric switches, electrical components, circuits, etc., can solve the problems of potential safety hazards, lack of switching protection devices, losses, etc., and achieve the effect of avoiding potential safety hazards

Inactive Publication Date: 2018-01-05
LEGRAND LOW VOLTAGE ELECTRICAL APPLIANCES WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the prior art does not have a switching protection device during the switching process. Once the switching is unsuccessful, when both switching circuits are connected, it will cause huge safety hazards and may cause unnecessary losses.

Method used

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  • Interlock device for preventing double closing of automatic changeover switch

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Embodiment Construction

[0013] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings. The same parts are indicated by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings. The words "inner" and "outer" are used to refer to directions toward or away from the geometric center of a particular component, respectively.

[0014] Such as figure 1 As shown, an interlocking device for automatic transfer switch to prevent double closing includes a mounting plate 1. A common power supply 2 and a backup power supply 3 are provided on the mounting plate 1. The common power supply 2 is equipped with a common power supply moving contact shaft 6, The common power supply movable conta...

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Abstract

The invention provides an interlocking device for preventing double closing of an automatic changeover switch, which comprises a mounting plate. A common power source and a standby power source are arranged on the mounting plate. The common power supply comprises a common power moving contact shaft, a common power moving contact, and a common power static contact inside; the common power movable contact shaft can drive the common power movable contact to rotate at an angle. The standby power supply comprises a standby power moving contact shaft, a backup power moving contact, and a standby power static contact; the standby power moving contact shaft can drive the standby power moving contact to rotate at an angle. When the common power moving contact rotates, the standby power moving contact can be can prevented from rotating; when the standby power supply moving contact rotates, the common power supply moving contact can be prevented from rotating. The interlock device can realize theinterlock function between the common power source and the standby power source to effectively prevent the two power sources from being turned on simultaneously.

Description

Technical field [0001] The invention relates to the technical field of low-voltage electrical equipment, in particular to an interlocking device for preventing double closing of an automatic transfer switch. Background technique [0002] With the increasing demand for electricity and power supply stability in today's era, the importance of automatic transfer switching appliances is increasing. The conversion between two power sources can provide a continuous and reliable power supply for the load to ensure the continuous operation of the load. Every automatic transfer switch electrical mechanism will have a conversion operating mechanism to switch between the two power sources. However, the prior art does not have a switching protection device during the switching process. Once the switching is unsuccessful, when both switching circuits are turned on, it will cause huge safety hazards and may cause unnecessary losses. Summary of the invention [0003] In order to solve the shortc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/26
Inventor 张洪献林萍沈凌巍韩瑄高杰
Owner LEGRAND LOW VOLTAGE ELECTRICAL APPLIANCES WUXI
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