A double-connected relay protection pressure plate with state monitoring function
A technology of relay protection and pressure plate, which is applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, electrical components, etc., can solve the problem of inconvenient disassembly of connecting pieces, achieve reliable results of pressure plate state monitoring, and small promotion resistance Effect
Active Publication Date: 2022-03-11
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology
The feature of the wire spring type pressing plate is that the wire spring at the center of the connecting piece is used as the axis to rotate and displace, and the connecting piece is not easy to disassemble.
Method used
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[0021] Such as figure 1 , figure 2 and image 3 As shown, the double-connected relay protection pressure plate with the status monitoring function in this embodiment includes a pressure plate base 1 and a pressure plate connecting piece 2, and a pair of main jacks 11, a pair of auxiliary jacks 12 and a pair of sub A pair of main inserts 21 and a pair of auxiliary inserts 22 are provided on the pressing plate connecting piece 2, and the pair of main inserts 21 are connected to each other, and the pair of auxiliary inserts 22 are connected to each other. In the state where the pressure plate connecting piece 2 is put into operation, each of the main inserts 21 is inserted into one of the main jacks 11, and each of the auxiliary inserts 22 is inserted into one of the auxiliary jacks 12, and the base of the presser plate 1 is provided with a main jack. 11. Connecting terminals corresponding to the auxiliary jacks 12 , the connecting terminals are respectively electrically conne...
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The invention discloses a double-connected relay protection pressure plate with a state monitoring function, which comprises a pressure plate base and a connecting piece of the pressure plate. hole, the connecting piece of the pressing plate is provided with a pair of main inserting posts and a pair of auxiliary inserting posts, and the pair of main inserting posts are connected and conducted with each other, and the pair of auxiliary inserting posts are connected and conducted with each other. In the input state, each of the main posts is inserted into a main socket, and each of the auxiliary posts is inserted into an auxiliary socket. The base of the pressing plate is provided with corresponding connection terminals for the main socket and the auxiliary socket. The connecting terminals are respectively electrically connected to the conductive sheets provided in the corresponding main socket or the auxiliary socket. The present invention retains the existing size and operating habits of the wire spring relay protection pressing plate, has small promotional resistance, and adopts electrical monitoring technology, so that the state monitoring result of the pressing plate is more reliable.
Description
technical field [0001] The invention relates to the field of substation relay protection, in particular to a double-connected relay protection pressure plate with a state monitoring function. Background technique [0002] The relay protection outlet pressure plate of the substation acts on the tripping of the circuit breaker and the start of other protection functions (such as failure, release of re-voltage lockout, etc.). Judging the state of the relay protection secondary circuit circuit, and providing convenience and safety support for maintenance and debugging. However, the outlet pressure plate is the functional demarcation point between the protection device and the control circuit of the primary equipment and the blind spot of status monitoring. Its input and withdrawal status needs to be manually checked on site, and it does not have the automatic monitoring function. To a certain extent, it threatens the correct operation of the relay protection. Cases of accidents...
Claims
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IPC IPC(8): H02H1/00H02H3/04
CPCH02H1/00H02H3/04
Inventor 徐浩欧阳帆朱维钧严亚兵余斌董国琴周桂中陈玉王建林孙晓兰许立强李刚梁文武李辉吴晋波洪权臧欣王善诺刘志豪尹超勇肖纳敏王娜王慧娟
Owner STATE GRID HUNAN ELECTRIC POWER