Error locking preventing system capable of preventing idling operation and high voltage live display device
A high-voltage live display, anti-misoperation locking technology, applied in the field of power equipment, can solve problems such as safety risks, provide evidence, and determine whether the line is live, so as to ensure safe production, prevent work scope, and prevent misoperation.
Inactive Publication Date: 2015-12-23
STATE GRID TIANJIN ELECTRIC POWER +1
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Problems solved by technology
However, due to the hidden dangers in the "five-prevention" locking system of the high-voltage switchgear in the substation, the anti-misoperation locking function of the switchgear is not perfect, and it cannot provide a basis for the operation and maintenance personnel to judge whether the line is live during the switching operation and maintenance personnel. certain security risk
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
[0022] An anti-misoperation locking system and high-voltage electrified display device capable of realizing anti-missing operation, including a housing and a circuit board installed in the housing. The circuit board includes a CPU chip, a three-way electroscope access circuit, and five anti-unlocking keys The output terminals of the access detection circuit and the locking mechanism, the three-way electroscope access circuit and the five-way unlocking key access detection circuit are respectively connected to the input end of the CPU chip, and the output end of the CPU chip is connected to the locking mechanism. There are three electrical inspection sensor insertion ports on the housing position corresponding to the input end of the ...
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The invention relates to an error locking preventing system capable of preventing idling operation and a high voltage live display device. The device comprises a shell and a circuit board arranged in the shell. The circuit board comprises a CPU chip, a three-way electroscope input circuit, a five-prevention unlock key input detection circuit, and a locking mechanism; the output terminals of the three-way electroscope input circuit and the five-prevention unlock key input detection circuit are individually connected to the input terminal of the CPU chip, the output terminal of the CPU chip is connected to the locking mechanism, a position, which is corresponding to input terminal of the three-way electroscope input circuit, of the shell is provided with three electroscope sensor insert ports, and a position, which is corresponding to input terminal of the five-prevention unlock key input detection circuit, of the shell is provided with a five-prevention unlock key jack. The provided high voltage live display device is used with the error locking preventing system, before the cabinet door is opened, the electricity should be verified, if the electricity verification is failed, the cabinet door cannot be opened, the device has a force locking function, thus the error operation on equipment is effectively prevented, and the safety production of electric system is guaranteed.
Description
technical field [0001] The invention belongs to the field of electric equipment, in particular to an anti-misoperation locking system and a high-voltage electrified display device capable of realizing anti-miss operation. Background technique [0002] With the improvement of the anti-misoperation level of substations and the expansion of the coverage of anti-misoperations, the number of vicious accidents in substations has decreased year by year. However, due to the hidden dangers in the "five-prevention" locking system of the high-voltage switchgear in the substation, the anti-misoperation locking function of the switchgear is not perfect, and it cannot provide a basis for the operation and maintenance personnel to judge whether the line is live during the switching operation and maintenance personnel. Definitely a security risk. [0003] Therefore, from the perspective of preventing electrical misoperation and based on power safety, we bring project development into the s...
Claims
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IPC IPC(8): G07C9/00
Inventor 李建伟
Owner STATE GRID TIANJIN ELECTRIC POWER