Online monitoring system of vacuum degree of vacuum switch
A technology of vacuum switch and monitoring system, which is used in vacuum gauges and circuit breaker tests that measure the medium pressure by measuring the change of the thermal conductivity of the medium. question
Inactive Publication Date: 2015-01-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is a possibility of high voltage leakage at the signal acquisition end. Once a failure occurs, it will pose a great threat to the safety of the operator
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0036] image 3 It is a structural diagram of the online monitoring system for vacuum degree of a vacuum switch of the present invention.
[0037] In this example, if figure 1As shown, when the signal acquisition board 1 is to work, first use the signal processing and display board 2 to supply power to the light-emitting diode circuit board 3, and the light-emitting diodes on it emit light to convert electrical energy into light energy. The silicon photovoltaic solar panel 4 Receive light, and then convert the light energy into electrical energy. The silicon photovoltaic solar panel 4 obtains energy and then charges the energy storage capacitor on the signal acquisition board 1. When the voltage on the energy storage capacitor reaches a predetermined value, the signal acquisition board 1 starts to work. , and the collected vacuum degree sensing data is sent to the infrared signal receiving module 6 with an infrared signal through the infrared signal sending module 5, and fina...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an online monitoring system of a vacuum degree of a vacuum switch. A vacuum degree sensing signal for reflecting the vacuum degree of the vacuum switch is acquired by a sampling resistor at a high voltage end, then the vacuum degree sensing signal is converted into digital vacuum degree sensing data by a signal acquisition plate, and the acquired vacuum degree sensing data is sent by an infrared signal; the infrared signal from the high voltage end is received by an infrared signal receiving module at a low voltage end; the acquired vacuum degree sensing data is obtained and transmitted to a signal processing and displaying circuit board for processing; and the monitored vacuum degree of the vacuum switch is displayed, so that the online monitoring of the vacuum degree of the vacuum switch is realized. The online monitoring system disclosed by the invention comprises two transmission channels of which one is a signal transmission channel and the other one is a light energy transmission channel; electrical isolation from the high voltage end, namely the signal acquisition end, to the low voltage end, namely one side of an operator, is realized; and the safety in operation is improved.
Description
technical field [0001] The invention belongs to the technical field of on-line monitoring, and more specifically relates to an on-line monitoring system for the vacuum degree of a vacuum switch. Background technique [0002] Vacuum switch is a very promising switching device in the field of low voltage and medium voltage. As a new generation of advanced switching equipment, it has been widely used in the current power grid transformation in our country. [0003] The vacuum degree of the vacuum switch, that is, the vacuum degree in its interrupter chamber, is one of the main factors determining its electrical performance. The deterioration of the vacuum degree in the arc extinguishing chamber not only reduces the ability of the vacuum switch to withstand the system voltage for a long time and the ability to withstand internal and external overvoltages during operation, but also it is extremely difficult to effectively disconnect the fault current. Therefore, the majority of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01L21/12G01R31/327
Inventor 程玉华王军赵广慧郑伟苟小平白利兵陈凯
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA