Remote control earth wire automatic disconnection apparatus
A technology of disconnecting device and ground wire, which is applied to the power device inside the switch, emergency protection circuit device for limiting overcurrent/overvoltage, circuit device, etc., which can solve unreliable ground wire contact and inconvenient manual operation, etc. problem, to achieve the effect of solving the inconvenience of manual operation
Active Publication Date: 2009-05-27
SHENZHEN KEANDA ELECTRONICS TECH
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Problems solved by technology
Solve the technical problems of inconvenient manual operation and unreliable ground contact
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[0021] Examples such as figure 1 , 2 As shown, a remote-controlled ground wire automatic disconnecting device includes a microcomputer and a control circuit part 1 connected with the microelectromechanical system, a motor 2 controlled by the control circuit part 1 and making the output shaft of the motor linearly reciprocate, and a switch knife 3 And ground knife seat 4. An insulating connecting column 9 is provided between the output shaft of the motor and the switch knife 3 . The control circuit part 1 includes a lightning protection circuit, a power supply circuit, a knife control circuit, a state signal circuit, a position sensor circuit and an alarm circuit.
[0022] The ground wire automatic disconnecting device of the present invention is composed of two parts: a mechanical structure and a control circuit. The ground wire knife holder 4 composed of the splint 8; the control circuit part is composed of a lightning protection circuit, a power supply circuit, a switch k...
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The invention relates to a remote control device for automatically connecting / disconnecting a ground wire, which comprises a microcomputer and a control circuit part electrically connected with the microcomputer, an electric motor controlled by the control circuit part and making an output shaft thereof linearly move to and fro, a knife switch and a ground wire tool post. An insulated connecting column is arranged between the output shaft of the electric motor and the knife switch. The control circuit part comprises a lightning-proof circuit, a power supply circuit, an electric motor control circuit, a knife switch control circuit, a state signal circuit, a position sensor circuit and an alarm circuit. The electric motor is selected from one of a linear motor or a gear speed reducer. The remote control device is also provided with an insulated substrate and a box body, wherein the control circuit part, the electric motor, the knife switch and the ground wire tool post are arranged on the insulated substrate; and the insulated substrate is arranged in the box body. The box body is also provided with a power indicating lamp, a self-checking switch, an alarm silencing switch, an alarm indicating lamp, a computer switch-off port, a microcomputer switch-in port and a power interface. The remote control device solves the problems of inconvenient manual operation and unreliable ground wire contact, is reliable lightning-proof grounding connecting / disconnecting remote control device provided for a signal tower, a cabinet and the like, and achieves fully-automatic insulating property test.
Description
technical field [0001] The invention relates to a line connection device, in particular to a lightning protection ground wire automatic disconnection device with microcomputer remote control and monitoring functions, alarm function and self-test function, which realizes the remote disconnection of the lightning protection ground wire by the microcomputer Automatic testing of control and equipment insulation performance. It is suitable for automatic disconnection control and alarm of lightning protection grounding wires in signal rooms such as railways. Background technique [0002] As we all know, when testing the insulation performance of equipment, the lightning protection ground wire of the equipment must be disconnected. At present, the disconnection of the lightning protection grounding wire is carried out by manually operating a disconnection card or a single-knife switch. The insulation performance test has been automated. Therefore, before each insulation performa...
Claims
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IPC IPC(8): H02J13/00H02H9/04H01H3/26
Inventor 郭丰明张帆龚原斌张树清郑捷曾
Owner SHENZHEN KEANDA ELECTRONICS TECH