Synchronous breaking on-off test control device and method based on alternating-current vacuum contactor
A vacuum contactor and control device technology, applied in the general control system, program control, computer control, etc., can solve the problems that affect the service life of electrical equipment safety, and the arc problem of AC vacuum contactor can not be solved well, so as to achieve the improvement Effect of breaking capacity and mechanical life
Active Publication Date: 2016-04-13
STATE GRID CORP OF CHINA +1
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Problems solved by technology
The arc problem in the breaking process of AC vacuum contactor has not been solved well, which seriously affects its service life and the safety of electrical equipment
Method used
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[0014] Below in conjunction with accompanying drawing, the present invention will be further described:
[0015] As shown in the figure, the present invention proposes a dsPIC-based AC vacuum contactor synchronous break-on-off test control device, which includes a voltage transformer 1, a current transformer 2, a signal conditioning circuit 3, a core processor dsPIC4, and a communication unit 9 and the industrial computer 10; the voltage transformer 1 and the current transformer 2 are connected to the signal conditioning circuit 3, the signal conditioning circuit 3 is connected to the core processor dsPIC4, and the core processor dsPIC4 is connected to the industrial computer 10 through the communication unit 9.
[0016] The core processor dsPIC4 is also connected with a control button 5, a reset unit 6, a clock unit 7 and an actuator 8; the measurement terminal of the voltage transformer 1 is connected with the control power supply 11, and the output terminal of the voltage tr...
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A synchronous breaking on-off test control device based on an alternating-current vacuum contactor is provided. The device comprises a voltage transformer, a current transformer, a signal conditioning circuit, a core processor dsPIC, a communication unit and an industrial control computer. The voltage transformer and the current transformer are connected with the signal conditioning circuit. The signal conditioning circuit is connected with the core processor dsPIC. The core processor dsPIC is connected with the industrial control computer through the communication unit. A synchronous breaking on-off test control technology based on the dsPIC alternating-current vacuum contactor has the advantages that an on-off testing process of an alternating-current vacuum contactor is dynamically controlled, zero-current breaking unavailable in a conventional breaking process is realized, and the breaking capability and the mechanical lifetime are substantially improved.
Description
technical field [0001] The invention belongs to the technical field of electrical equipment testing, in particular to a dsPIC-based AC vacuum contactor synchronous breaking and breaking test control technology. Background technique [0002] AC vacuum contactor uses the principle of electromagnetic action to control the opening and closing operation of the moving contact by controlling the current of the action coil, and is widely used in AC power grids and electrical equipment. The arc problem in the breaking process of AC vacuum contactor has not been solved well, which seriously affects its service life and the safety of electrical equipment. Contents of the invention [0003] Purpose of the invention: [0004] The invention provides a dsPIC-based AC vacuum contactor synchronous breaking on-off test control device and method, and aims to solve the existing problems in the past. [0005] Technical solutions: [0006] A dsPIC-based AC vacuum contactor synchronous breaki...
Claims
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Login to View More IPC IPC(8): G01R31/327G05B19/042
CPCG01R31/327G05B19/0428G05B2219/2612
Inventor 郎福成张红奎常海英朱剑锋
Owner STATE GRID CORP OF CHINA