Five-prevention locking device of high-voltage switch cabinet and control method of five-prevention locking device
A high-voltage switchgear, five-proof locking technology, applied in the direction of the panel/switch station circuit device, the board/panel/desk of the substation/switchgear, the substation/switch layout details, etc., can solve the problem that the live display cannot be installed with a ground knife lock The problem of opening and closing the grounding switch, electrical misoperation, etc., can prevent personnel misoperation and mistakenly entering the live interval, simple wiring, and light weight.
Pending Publication Date: 2022-03-15
广西电网有限责任公司梧州供电局
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Problems solved by technology
[0004] The purpose of the present invention is to provide a high-voltage switchgear five-proof locking device and its control method, which can solve the problem that some charged displays in the prior art cannot be equipped with ground knife locks, opening and closing grounding knife switches due to compatibility problems, resulting in electrical errors. operational risk issues
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[0023] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.
[0024] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...
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The invention provides a five-prevention locking device of a high-voltage switch cabinet and a control method of the five-prevention locking device. The five-prevention locking device comprises a control box, a locking structure, a power switch, an electroscopic signal lead-in wire, a control circuit board, a ground knife lock mechanism and a battery, the locking structure is installed at the top end of the control box, the power switch is installed at the bottom of the control box, and the control circuit board is installed in the control box. The electroscopic signal lead-in wire is electrically connected with the control circuit board and is led out from the control box; the battery is installed in the control box and supplies power to the control circuit board and the grounding knife lock mechanism. The ground knife lock mechanism is installed on the control box and the locking structure. And the control circuit board controls the grounding knife lock mechanism to lock or unlock according to a signal introduced by the electroscopic signal lead-in wire. The five-prevention locking device can be additionally arranged on all equipment, without a five-prevention locking device, of a high-voltage switch cabinet, can also be arranged in a power distribution room and a European-style box transformer high-voltage switch cabinet, and can be compatible with live-line displays of various brands. The device can effectively prevent a worker from mistakenly operating and entering a live-line interval, and greatly reduces the possibility of electrical misoperation.
Description
technical field [0001] The invention relates to the technical field of high-voltage switchgear locking, in particular to a five-proof locking device for a high-voltage switchgear and a control method thereof. Background technique [0002] Live monitors are widely used in high-voltage switch cabinets in power systems, especially in fully enclosed high-voltage switch cabinets. According to equipment technical specifications, at least one set of live monitors is installed on each cabinet. The charged indicator of the high-voltage switchgear that is newly put into operation, when the equipment has operating voltage, the charged indicator will display light or indicate that there is electricity to warn the workers that the high-voltage equipment is live, and there is no indication when the equipment is without electricity. The ground knife lock can be unlocked only when it is verified that there is no electricity, and the ground knife switch can be unlocked, which plays a great r...
Claims
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IPC IPC(8): H02B1/24H02B1/04H02B1/16H02B1/30H02B1/32H01H9/22
CPCH02B1/24H02B1/04H02B1/16H02B1/30H02B1/306H02B1/32H01H9/22
Inventor 李泳标陈俊宇祝炎新利权鹏黄榆杰蔡宙霖周宣莲
Owner 广西电网有限责任公司梧州供电局
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