CT secondary circuit short connection wire
A secondary circuit and short-circuit technology, applied in the direction of clamping/spring connection, etc., can solve problems such as electric shock of personnel, CT explosion, and errors that cannot be ruled out, and achieve the effect of reliable connection, solving operation errors and simple structure.
Inactive Publication Date: 2018-06-22
STATE GRID CORP OF CHINA +1
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Problems solved by technology
In the prior art, the CT secondary circuit generally uses a conventional test line for short-circuiting. This test line needs to be used by multiple people, and it is necessary to monitor the current circuit at the interval without power failure in real time, which requires the secondary staff to have Strong professionalism, you must be cautious and careful during the work process, but this does not rule out the phenomenon of mistakes. Once an operation error occurs, the CT secondary circuit is open, which will easily cause serious accidents such as electric shock and CT explosion.
Method used
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Embodiment Construction
[0011] CT secondary circuit short wiring of the present invention is mainly made up of lead wire and the plug that is connected at the two ends of lead wire, and the structure of plug is as follows: figure 1 As shown, the main body of the plug is a hollow cylindrical conductor 1 extending back and forth, the front part of the hollow cylindrical conductor 1 is the pin part 3 for connecting the current terminal row, and the rear part of the hollow cylindrical conductor 1 is wrapped with an insulating sheath 2 Constitute the handle part, wherein a columnar lock pin 5 is concentrically installed in the hollow columnar conductor 1, and a compression spring for driving the columnar lock pin 5 to move forward is mounted on the rear end of the columnar lock pin 5 in the hollow columnar conductor 1 10. On the hollow columnar conductor 1 and its insulating sheath 2 located at the handle part, there are at least two guide slots 12 extending back and forth at intervals in the circumferenti...
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The invention discloses a CT secondary circuit short connection wire, which comprises a wire and plugs connected at two ends of the wires respectively. Each plug comprises a hollow cylindrical conductor extending forward and backward. A cylindrical lock pin concentrically passes through the hollow cylindrical conductor. The back end of the cylindrical lock pin is in abutted connection with a compression spring. The hollow cylindrical conductor on a handle portion and an insulation sheath thereof are circumferentially provided with guide long holes extending forward and backward. The cylindrical lock pin is radially and fixedly provided with insulation pull rods passing through the corresponding guide long holes. The front side wall of the hollow cylindrical conductor is provided with elastic reeds in abutted cooperation with the cylindrical lock pin correspondingly; and the outer surfaces of the elastic reeds are provided with protruding antiskid teeth cooperated with a current terminal bar correspondingly. The CT secondary circuit short connection wire is simple in structure and reliable to use, and solves the problem that an existing CT secondary circuit is shorted circuited through a test wire, which is prone to cause operation errors.
Description
technical field [0001] The invention relates to a protection device for high-voltage electrical equipment, in particular to a CT secondary circuit short circuit. Background technique [0002] In the maintenance work of power equipment, some work such as replacing lines, transformers and busbar protection equipment cannot be carried out without power failure. At this time, if there is an operation task in the current circuit, it is necessary to short-circuit and isolate the secondary circuit of the CT, and take corresponding safety measures . In the prior art, the CT secondary circuit generally uses a conventional test line for short-circuiting. This test line needs to be used by multiple people, and it is necessary to monitor the current circuit at the interval without power failure in real time, which requires the secondary staff to have Strong professionalism, you must be cautious and careful during the work process, but this does not rule out the phenomenon of mistakes. ...
Claims
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Login to View More IPC IPC(8): H01R4/48
CPCH01R4/48
Inventor孙鹏荆秦晓波佟建炜魏帅齐王姝洁黄思芳韩娟李鹏王长江王栋李志强
OwnerSTATE GRID CORP OF CHINA