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An interlocking transmission device for an automatic transfer switch of a three-phase circuit breaker

A transmission device and circuit breaker technology, applied in the direction of electrical switches, circuits, electrical components, etc., can solve the problem of inability to prevent mechanical mis-closing operations, and achieve the effect of preventing mis-closing operations

Active Publication Date: 2019-06-14
辽宁拓新电力电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, existing technologies cannot prevent mechanical false closing operations

Method used

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  • An interlocking transmission device for an automatic transfer switch of a three-phase circuit breaker
  • An interlocking transmission device for an automatic transfer switch of a three-phase circuit breaker
  • An interlocking transmission device for an automatic transfer switch of a three-phase circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Please refer to figure 1 , single-phase circuit breaker A, single-phase circuit breaker B, and single-phase circuit breaker C are arranged in a straight line. The rotating shaft of single-phase circuit breaker A is provided with a cam rotating disk 1 , the rotating shaft of single-phase circuit breaker B is provided with a cam rotating disk 5 , and the rotating shaft of single-phase circuit breaker C is provided with a cam rotating disk 6 . And the cam turntable is fixed on the rotating shaft. When the rotating shaft rotates clockwise, the corresponding single-phase circuit breaker is in the closing operation. When the rotating shaft rotates counterclockwise, the corresponding single-phase circuit breaker is in the opening operation. The rotation of the rotating shaft can be Drive the cam turntable to rotate accordingly.

[0038] Please refer to figure 2 , is the position relationship diagram of the three cam turntables when the three single-phase circuit breakers ar...

Embodiment 2

[0055] Please refer to Figure 7 , single-phase circuit breaker A, single-phase circuit breaker B, and single-phase circuit breaker C are respectively located at the three vertices of the triangle; among them, the rotating shaft of single-phase circuit breaker A is covered with cam turntable 1, and the rotating shaft of single-phase circuit breaker B is A cam turntable 5 is sleeved on the rotating shaft, and a cam turntable 6 is sleeved on the rotating shaft of the single-phase circuit breaker C. And the cam turntable is fixed on the rotating shaft. When the rotating shaft rotates clockwise, the corresponding single-phase circuit breaker is in the closing operation. When the rotating shaft rotates counterclockwise, the corresponding single-phase circuit breaker is in the opening operation. The rotation of the rotating shaft can be Drive the cam turntable to rotate accordingly. Concave and convex notches are formed on both sides of the cam dial on each single-phase circuit bre...

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PUM

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Abstract

The invention relates to the three-phase interlocking transmission device of a single-phase circuit breaker. The device comprises three single-phase circuit breakers. When each single-phase circuit breaker realizes closing operation and opening operation, a rotation shaft realizes corresponding direction rotation. The rotation shaft of each single-phase circuit breaker is fixedly provided with a corresponding cam rotation disc. The rotation of the rotation shaft can drive the cam rotation disc to rotate. A corresponding concave-convex port is formed on each cam rotation disc. After any one single-phase circuit breaker in the three single-phase circuit breakers is in a closing state, through the concave-convex port on the cam rotation disc, the rotation of the rotation shaft on the adjacentsingle-phase circuit breaker is restrained. In the scheme, mechanical mis-closing operation can be prevented.

Description

technical field [0001] The invention relates to the technical field of power distribution equipment, in particular to an interlock transmission device for an automatic transfer switch of a three-phase circuit breaker. Background technique [0002] The low excitation impedance transformer grounding protection device of distribution network is a kind of non-direct grounding system for the neutral point. The grounding protection device collects the bus voltage and zero sequence voltage of the power supply system. When a single-phase ground fault occurs in the power supply system, the grounding protection device can Quickly judge the fault phase, and issue the closing command of the single-phase circuit breaker of the corresponding phase, and directly connect the ground fault phase to the ground grid; realize parallel shunting and voltage clamping, which can extinguish the arc at the fault point and shorten the personal injury The purpose of preventing single-phase grounding fau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/26
CPCH01H9/26H01H2009/265
Inventor 黄钢刘永阔张富裕董超杨雪飞张永旭王保东
Owner 辽宁拓新电力电子有限公司