An electric control device for an isolating switch
An isolation switch and action execution technology, applied in the field of remote control devices, can solve the problems of false display, false action, and refusal to act, and achieve the effect of reducing the failure rate, guaranteeing the stability of the action, and solving the false action.
Inactive Publication Date: 2018-01-19
HEBEI NORMAL UNIV
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Problems solved by technology
[0003] The purpose of the present invention is to provide an electric control device for an isolating switch, which solves the problems of misoperation, refusal to operate and false display of the existing electric control device
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Embodiment Construction
[0013] The present invention will be further described below in conjunction with the accompanying drawings.
[0014] Such as figure 1 As shown, an electric control device for an isolating switch is composed of a motor 1, a reducer 3 and two sets of action actuators. The reducer 3 is fixed on the support plate 4, and the motor 1 drives the rotating shaft 16 to rotate through the reducer 3. The rotating shaft 16 is arranged in the middle of the two groups of action actuators, and the left end of the rotating shaft is provided with a connector 2 for connecting with a high-voltage isolating switch. The action actuator includes a miniature air circuit breaker 5 fixed on the support plate 4, and its model is S202MDC, which is a commercially available product and is produced by ABB Company of Sweden. The support body 11 fixedly connected with the support plate is provided with a vertical circular guide post 12, and a guide rod 14 is provided in the middle of the slide block 13 slidi...
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The invention discloses an electric control apparatus for an isolation switch. The apparatus consists of a motor, a speed reducer and two action execution mechanisms. The motor drives a rotary shaft arranged between the two action execution mechanisms to rotate through the speed reducer; and a connector is arranged at one end of the rotary shaft and connected with the high-voltage isolation switch. Each action execution mechanism comprises a micro air circuit breaker fixed to a support plate; a guide column is arranged on a support body fixed with the support plate; a guide rod is arranged on a sliding block in sliding fit with the guide column; a sliding block reset spring is mounted at the lower end of the guide rod; a shift plate is arranged on one side surface of the sliding block; a limiting head is arranged at the top of a limiting screw of the sliding block; a shaft head at the other end of the rotary shaft is provided with a shift block protruding out of the shaft side; and the shift block is in press and movable fit with the guide rod on the sliding block. The motor drives the rotary shaft to rotate positively and negatively; the guide rod is driven by the shift block and the reset spring to enable the sliding block to move up and down along the guide column; and the shift plate drives a micro breaker shift fork on the micro air circuit breaker to be opened or closed for switching off the micro air circuit breaker so as to realize remote control on the isolation switch.
Description
technical field [0001] The invention relates to a switch control device, in particular to a remote control device for a catenary high-voltage isolating switch. Background technique [0002] High-voltage isolating switch is an important switching device in power plants, substations, and railway catenary electrical systems. Its main function is to ensure the safety of high-voltage electrical appliances and devices during maintenance work, and to isolate voltage. Most of the isolating switch operating mechanisms use electrical components such as contactors and relays to realize the forward and reverse switching of the motor. The remote control opening and closing commands trigger the electric operating mechanism with narrow pulses. The opening and closing of the switch. The remote control command adopts the optical fiber transmission mode, and the conventional optical fiber control mode misoperation, refusal to operate, and false display of faults occur from time to time, whic...
Claims
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IPC IPC(8): H01H3/26
CPCH01H3/26
Inventor 张艳华吴立勋张百勇范庆林
Owner HEBEI NORMAL UNIV