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High voltage switch cabinet misoperation preventing device

An anti-misoperation device, high-voltage switchgear technology, applied in electrical switches, electrical components, circuits, etc., can solve the problems of complex mechanism, large space occupation, complex structure, etc., to achieve safe and reliable operation, small space occupation, and increased volume Effect

Active Publication Date: 2016-06-22
NANYANG CITY XINTE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanisms of these mechanical interlocking devices are very complex, with many parts, high manufacturing requirements, poor reliability, and inflexible operation. They cannot be locked with padlocks for each operation process according to special needs.
[0006] Invention patent ZL201210007824.2 discloses a five-proof system for high-voltage switchgear, which includes interlocking mechanisms for circuit breakers and Gree switches, interlocking mechanisms for isolating switches and grounding switches, interlocking mechanisms for grounding switches and circuit breakers and isolating switches, and interlocking mechanisms for isolating switches and The lower door interlock mechanism, the grounding switch and the lower door interlock mechanism are five parts. Although it can realize the interactive interlocking of the isolating switch, the circuit breaker, and the grounding switch to ensure that the operation procedure is correct and the operation is successful, the operation procedure is incorrect and the operation is unsuccessful. Its structure is complex, there are many components, it takes up a lot of space, and it brings a lot of inconvenience to the internal maintenance of the high-voltage cabinet

Method used

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  • High voltage switch cabinet misoperation preventing device
  • High voltage switch cabinet misoperation preventing device
  • High voltage switch cabinet misoperation preventing device

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Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 , figure 2 , image 3 As shown, the high-voltage switchgear used in the power system is usually composed of a cabinet body and operating components such as vacuum circuit breakers, isolating switches, and grounding switches installed inside. The cabinet body is equipped with upper doors, middle doors 8 and lower doors 6 three There are two cabinet doors, and a crossbeam 1 is arranged between the middle door 8 and the lower door 6.

[0028] The anti-misoperation device of the present invention includes: an operation hole for the coaxial operation of the opening and closing of the isolating switch and the grounding switch, a movable shielding plate 3 for controlling the opening and closing of the operation hole, a vacuum circuit breaker and an isolating Interlocking mechanism of switch and grounding switch, interlocking mechanism of cabinet door and isolating switch and grounding switch, and interlocking mechanism of grounding switch and cabinet door. ...

Embodiment 2

[0036] see Figure 4 , as a further improvement, an opening and closing limit sleeve 23 can be arranged at the operating end of the operating shaft 4, and two limit grooves 24 are radially opened on the peripheral side of the opening and closing limit sleeve 23, and the shielding plate 3, the linkage pin 25 that can cooperate with the limit groove 24 is fixedly installed, and the linkage pin 25 moves together with the shielding plate 3. Of course, the linkage pin 25 can also be installed on the shielding plate 3 through the connecting seat 26, so that The protruding length of the linkage pin shaft 25 can be adjusted, which is more convenient to use. During use, if the opening / closing operation of the isolating / grounding switch is in place and the operating handle is pulled out, one of the limit slots 24 corresponds to the position of the linkage pin 25, and the shielding plate 3 can move to the right. Vacuum circuit breaker closing operation; if the opening / closing operation ...

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PUM

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Abstract

The invention discloses a high voltage switch cabinet misoperation preventing device, comprising an operation hole for switch-on-off coaxial operation of a disconnecting switch and an earthing switch, a movable shading plate for controlling opening and closing of the operation hole, an interlocking mechanism of a vacuum circuit breaker and the disconnecting switch as well as the earthing switch, a cabinet door and disconnecting switch interlocking mechanism and an earthing switch and cabinet door interlocking mechanism. The misoperation preventing device can reliably prevent misoperation of switch-on-off operations of the vacuum circuit breaker, the disconnecting switch and the earthing switch and door opening and closing operations of a high voltage switch cabinet, and can ensure safety and reliability of operations; and the high voltage switch cabinet misoperation preventing device has the advantages of being simple in structure, occupying small space, increasing no volume of the high voltage switch cabinet, being simple and convenient to operate, and so on.

Description

technical field [0001] The invention relates to the technical field of misoperation prevention for high-voltage electrical equipment, in particular to a misoperation prevention device for a high-voltage switch cabinet. Background technique [0002] The high-voltage switchgear for power supply and distribution equipment is mainly composed of vacuum circuit breakers, disconnectors, grounding switches and other operating components, as well as measurement and protection components such as transformers to form a power supply circuit. During the operation and maintenance of high-voltage electrical equipment, the operation may cause serious safety accidents. In this regard, the "Regulations on the Management of Electrical Misoperation Prevention Devices" issued by the former Ministry of Energy (Energy Security (1990) No. 1110) clearly requires that all electrical equipment that may cause misoperations should be installed with anti misoperation devices. The anti-mistake device sho...

Claims

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Application Information

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IPC IPC(8): H01H9/22H01H9/26
CPCH01H9/22H01H9/26H01H2009/265
Inventor 鲍全军鲁庆宾明涛王哲刘涛
Owner NANYANG CITY XINTE ELECTRIC
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