Relay protection hard pressure plate anti-false alarm device
An alarm device and relay protection technology, applied in circuit devices, electrical components, etc., can solve the problems of misoperation of hard platen, dependence on operators, unreliability, etc.
Active Publication Date: 2017-08-18
STATE GRID CORP OF CHINA +3
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Problems solved by technology
However, because some protection devices have a large number of hard pressure plates, for example, the number of hard pressure plates on the screen of the main transformer protection device may be as many as 20, so the problem of hard pressure plate misoperation often occurs
However, most of the power supply companies in our country currently adopt the method of manual review to solve this problem, that is, after the operation personnel complete the operation of the hard pressure plate, they check the position of the hard pressure plate one by one according to the requirements of the dispatch order. This method is extremely dependent on the operator himself , extremely unreliable
[0003] Here, the present invention proposes a method for automatic judgment by computer to avoid misoperation, but it is also necessary to prevent false alarms caused by the inconsistency between the actual state of the hard platen and the state set by the computer
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[0017] like Figure 1 to Figure 8 As shown, the relay protection hard-press plate anti-misoperation operating system includes a hard-press-plate state setting module, a hard-press-plate state sampling module, a hard-press-plate state comparison module, and an anti-misoperation alarm module. Set the state of each hard press plate, the hard press plate state sampling module obtains the working state of the hard press plate by collecting the voltage at the contact point of each hard press plate, and the hard press plate state comparison module compares the working state of each hard press plate with the set state For comparison, the anti-misoperation alarm module sends a corresponding misoperation alarm according to the comparison result of the hard platen state comparison module.
[0018] like figure 1 As shown, the operator selects the corresponding protective device screen in the computer according to the dispatch order, and sets the state of the hard pressure plate in the in...
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The invention discloses an anti-false alarm device for a hard press plate for relay protection, which includes a hard press plate and an alarm device. The alarm device is provided with a data port and an alarm control power supply. The port is provided with a mechanical normally closed contact, and the mechanical normally closed contact is used to control the on-off of the alarm control power supply. When the five-proof alarm key is inserted into the data port, the mechanical normally closed contact is disconnected, and the alarm control power supply is disconnected. When the five-proof alarm key is pulled out, the mechanical normally closed contact is closed, and the alarm control power is automatically turned on. The invention can avoid false alarms caused by the inconsistency between the actual state of the hard pressing plate and the state set by the computer when the five-proof alarm key is inserted into the data port for data transmission.
Description
technical field [0001] The invention relates to a relay protection technology, in particular to a relay protection hard pressing board anti-misoperation technology. Background technique [0002] The relay protection hard press is an important part of the relay protection device, and its opening and closing state is directly related to whether the protection automation device can operate correctly. At present, the operation of the hard pressing plate of the relay protection device in the substation is carried out by the operator according to the dispatch order. However, because some protection devices have a large number of hard pressure plates, for example, the number of hard pressure plates on the screen of the main transformer protection device may be as many as 20, so the problem of hard pressure plate misoperation often occurs. However, most of the power supply companies in our country currently adopt the method of manual review for this problem, that is, after the oper...
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IPC IPC(8): H02J13/00
Inventor 姚宸扬纪涛林娄朱斌泉张超陈海龙王东升
Owner STATE GRID CORP OF CHINA