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Vacuum switch vacuum degree on-line monitoring system

A vacuum switch and monitoring system technology, applied in electrical switches, high-voltage/high-current switches, high-voltage air circuit breakers, etc., can solve the problems of low safety and easy interference in occasional error signal acquisition, and achieve improved transmission accuracy, Realize the effect of correct reading and eliminate security risks

Active Publication Date: 2014-03-19
成都凯赛尔科技有限公司
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Problems solved by technology

[0020] The purpose of the present invention is to provide an online monitoring system for the vacuum degree of a vacuum switch, which solves the technical problems that the existing online monitoring system is not safe, especially that there are occasional errors and the signal acquisition is easily disturbed, so as to effectively solve the above-mentioned problems. There are technical problems

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  • Vacuum switch vacuum degree on-line monitoring system
  • Vacuum switch vacuum degree on-line monitoring system
  • Vacuum switch vacuum degree on-line monitoring system

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[0052] The present invention will be further described below in conjunction with specific examples.

[0053] All features disclosed in this specification, or steps in all disclosed methods or processes, except for mutually exclusive characteristics and / or steps, can be combined in any way, unless otherwise stated, they can be used by other equivalent or similar Instead, each feature is intended to be replaced by alternative features, that is, each feature is only one embodiment of a series of equivalent or similar features unless stated otherwise.

[0054] Such as Figure 4-7 As shown, the vacuum switch vacuum degree online monitoring system of the present invention includes the following main components:

[0055] The double strobe switch is set before the signal is sampled and enters the signal acquisition module; the action of the strobe switch is controlled by the single-chip microcomputer to realize the correct reading of the three-phase signal and eliminate the mutual in...

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Abstract

The invention discloses a vacuum switch vacuum degree on-line monitoring system. The system comprises a full-scale range sensor, a three-phase ion column, a signal processing and display circuit board, a light emitting diode circuit board, a silicon light solar cell panel, a signal acquisition module, a double-gating switch and a signal processing module. The signal acquisition module employs a high-precision acquisition chip to acquire electrical signals, transmits processed data through an infrared transmitting end, and isolates an infrared transmission pathway from a light emitting diode energy transmission pathway; the double-gating switch is set after signals are sampled and before the signals enter the signal acquisition module; and the signal processing module which converts the physical voltage signals transmitted by the signal acquisition module into digital signals, takes an average value after digitization of a physical quantity, and transmits the value to the signal processing and display circuit board through infrared rays for signal processing, display and real-time monitoring. The system solves the isolation problem of a primary loop and a secondary loop, eliminates safety hidden risks, and eliminates mutual interference among the three phases of a signal acquisition end.

Description

technical field [0001] The invention relates to an on-line monitoring system for vacuum degree of a vacuum switch, which belongs to the technical field of on-line monitoring. Background technique [0002] Vacuum switch is a very promising switching device in the field of low voltage and medium voltage. Vacuum switch, as a new generation of advanced switchgear, has been widely used in my country's current power grid transformation. The vacuum degree of the vacuum switch interrupter is one of the main factors determining its electrical performance. The deterioration of the vacuum degree in the interrupter not only reduces the ability of the vacuum switch to withstand the system voltage for a long time and withstand internal and external stresses during operation. Voltage capability, and it is extremely difficult to effectively disconnect the fault current, therefore, it is urgent to monitor the vacuum degree of the vacuum switch in operation. [0003] At present, the testing...

Claims

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Application Information

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IPC IPC(8): H01H33/668
Inventor 王军赵广慧苟小平
Owner 成都凯赛尔科技有限公司
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