CN111077414A - Switch cabinet discharge monitoring device and method - Google Patents
Switch cabinet discharge monitoring device and method Download PDFInfo
- Publication number
- CN111077414A CN111077414A CN201911225126.8A CN201911225126A CN111077414A CN 111077414 A CN111077414 A CN 111077414A CN 201911225126 A CN201911225126 A CN 201911225126A CN 111077414 A CN111077414 A CN 111077414A
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- shell
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- opening
- data acquisition
- rotating shaft
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000005494 condensation Effects 0.000 abstract description 9
- 238000009833 condensation Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 8
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a switch cabinet discharge monitoring device and a method, wherein the switch cabinet discharge monitoring device is provided with a shell, a stepping motor, a rotating shaft and a sliding cover, the stepping motor, a data acquisition processor and a light wave detector are arranged in the shell, the stepping motor is connected with the data acquisition processor, the rotating shaft extends out of the shell into the shell and is connected with the stepping motor, the sliding cover is positioned outside the shell and is fixed on the rotating shaft, the top of the shell is provided with an opening for ultraviolet light waves to pass through, the light wave detector is positioned right below the opening, the stepping motor is used for driving the rotating shaft to periodically rotate, and the rotating angle of each time is 180 degrees, when the rotating shaft rotates periodically, the sliding cover periodically and completely closes or completely opens the opening, the antenna is arranged on the shell and penetrates through the shell, in the monitoring process, the rotating shaft is driven by the stepping motor to rotate periodically to realize the periodic monitoring of the light wave detector; the method has the advantages that the probability of polluting the photoelectric detector by dust and condensation in the switch cabinet is greatly reduced, and the monitoring reliability is high.
Description
Technical Field
The invention relates to a switch cabinet discharge monitoring device, in particular to a switch cabinet discharge monitoring device and method.
Background
The surface of an insulating part in the switch cabinet can often generate a discharge phenomenon due to condensation, the switch cabinet can generate short circuit to ground due to discharge, and the switch cabinet can be caused to burn and explode when the switch cabinet is serious. In the discharging process of the switch cabinet caused by condensation, ultraviolet light waves with the wavelength of 200-320nm are often generated. Since the switchgear cabinet is typically installed inside a dark switchgear cabinet room, and the switchgear cabinet is usually equipped with a sight glass, which has explosion-proof properties but cannot transmit ultraviolet light with wavelengths below 320 nm. Therefore, the ultraviolet light with the wavelength of 200-320nm outside the switch cabinet can not enter the switch cabinet, so that the ultraviolet light with the wavelength of 200-320nm can be detected, and the discharge phenomenon in the switch cabinet can be accurately detected.
The existing switch cabinet discharge monitoring device mainly detects whether ultraviolet light with the wavelength of 200-320nm is generated in a switch cabinet through a light wave detector for detecting the ultraviolet light with the wavelength of 200-320nm, when a photoelectric detector detects the ultraviolet light with the wavelength of 200-320nm, a corresponding electric signal is generated and output to a data acquisition processor of the switch cabinet discharge monitoring device, and the data acquisition processor processes the electric signal output by the photoelectric detector and then sends the electric signal to terminal monitoring equipment through an output circuit, so that discharge monitoring is realized.
At present, due to the limitation of manpower and material resources, the switch cabinet is usually maintained by adopting a regular manual detection mode (the regular maintenance period is usually indefinite for 2-3 years). Because dust and dew that exist in the cubical switchboard can't avoid can dropping photoelectric detector on and cause the pollution, when photoelectric detector pollutes and reaches certain degree, photoelectric detector sensitivity reduces to the inefficacy, and photoelectric detector's inefficacy can not in time be discover, so this current cubical switchboard discharge monitoring device's monitoring reliability is not high.
Disclosure of Invention
One of the technical problems to be solved by the present invention is to provide a switch cabinet discharge monitoring device with high monitoring reliability.
The technical scheme adopted by the invention for solving one of the technical problems is as follows: a switch cabinet discharge monitoring device comprises a data acquisition processor, a light wave detector and an output circuit, wherein the light wave detector and the output circuit are used for detecting ultraviolet light waves with the wavelength of 200-320nm, the light wave detector and the output circuit are respectively connected with the data acquisition processor, the output circuit is realized by adopting an antenna, the data acquisition processor and the output circuit are communicated through GPRS (general packet radio service), the switch cabinet discharge monitoring device further comprises a shell, a stepping motor, a rotating shaft and a sliding cover, the stepping motor, the data acquisition processor and the light wave detector are all arranged in the shell, the stepping motor is connected with the data acquisition processor, the rotating shaft extends out of the shell into the shell and is connected with the stepping motor, the sliding cover is positioned outside the shell and is fixed on the rotating shaft, the top of the shell is provided with an opening for ultraviolet light waves to pass through, the light wave detector is positioned under the opening, the stepping motor is used for driving the rotating shaft to rotate periodically, the rotating angle is 180 degrees each time, when the rotating shaft rotates periodically, the sliding cover periodically completely seals or completely opens the opening, and the antenna is arranged on the shell and penetrates through the shell.
The opening is a circular opening, and the diameter of the opening is 20-30 mm. The structure ensures that the field angle of the optical wave detector is as large as possible, so that as much space in the cabinet as possible is monitored.
The vertical distance between the top of the light wave detector and the opening is 3-5 mm.
The sliding cover is made of hard plastics.
Compared with the prior art, the switch cabinet discharge monitoring device has the advantages that the switch cabinet discharge monitoring device is provided with the shell, the stepping motor, the rotating shaft and the sliding cover, the stepping motor, the data acquisition processor and the light wave detector are all arranged in the shell, the stepping motor is connected with the data acquisition processor, the rotating shaft extends out of the shell into the shell and is connected with the stepping motor, the sliding cover is positioned outside the shell and is fixed on the rotating shaft, the top of the shell is provided with the opening for the ultraviolet light wave to pass through, the light wave detector is positioned right below the opening, the stepping motor is used for driving the rotating shaft to periodically rotate, the rotating angle is 180 degrees each time, when the rotating shaft periodically rotates, the sliding cover periodically completely closes or completely opens the opening, the antenna is arranged on the shell and passes through the shell, therefore, in the monitoring process, the stepping motor drives the rotating shaft to periodically rotate to completely close or completely open the opening of the, thereby realize the periodic monitoring of light wave detector, when the opening was opened, dust and condensation can only get into through the opening in the cubical switchboard, have reduced photoelectric detector greatly by the probability of dust and condensation pollution, and when the opening was closed, dust and condensation can not pollute photoelectric detector in the cubical switchboard, guarantee photoelectric detector's life and monitoring sensitivity from this, improve cubical switchboard discharge monitoring device's monitoring reliability.
The second technical problem to be solved by the present invention is to provide a method for monitoring the discharge of a switch cabinet with high monitoring reliability.
The second technical solution adopted by the present invention to solve the above technical problems is: a switch cabinet discharge monitoring method comprises the following steps:
step 4, the data acquisition processor outputs the signal output by the light wave detector through the output circuit, drives the stepping motor to rotate anticlockwise for 180 degrees and then enters a low-power-consumption dormant state after being reset;
and 5, when the next period comes, the stepping motor is started again, and the steps 3 and 4 are repeated and repeated.
The data acquisition processor controls the stepping motor to rotate 180 degrees clockwise by sending forward rotation signals and pulse signals with fixed step numbers.
The opening is a circular opening, and the diameter of the opening is 20-30 mm.
The vertical distance between the top of the light wave detector and the opening is 3-5 mm.
The sliding cover is made of hard plastics.
Compared with the prior art, the invention has the advantages that the switch cabinet discharge monitoring device is arranged in the switch cabinet, the switch cabinet discharge monitoring device is provided with the shell, the stepping motor, the rotating shaft and the sliding cover, the stepping motor, the data acquisition processor and the light wave detector are all arranged in the shell, the stepping motor is connected with the data acquisition processor, the rotating shaft extends out of the shell into the shell and is connected with the stepping motor, the sliding cover is positioned outside the shell and is fixed on the rotating shaft, the top of the shell is provided with the opening for passing ultraviolet light waves, the light wave detector is positioned right below the opening, the stepping motor is used for driving the rotating shaft to periodically rotate, the rotating angle of each time is 180 degrees, when the rotating shaft periodically rotates, the sliding cover periodically completely closes or completely opens the opening, the antenna is arranged on the shell and passes through the shell, and in the monitoring process, the rotating shaft is driven by the stepping motor to periodically rotate to periodically drive the rotating shaft to completely close or completely The photoelectric detector is fully opened, so that periodic monitoring of the light wave detector is realized, when the opening is opened, dust and condensation in the switch cabinet can only enter through the opening, the probability that the photoelectric detector is polluted by the dust and the condensation is greatly reduced, and when the opening is closed, the dust and the condensation in the switch cabinet can not pollute the photoelectric detector, so that the service life and the monitoring sensitivity of the photoelectric detector are ensured, and the monitoring reliability of the switch cabinet discharge monitoring device is improved.
Drawings
Fig. 1 is a schematic structural diagram of a switch cabinet discharge monitoring device according to the present invention;
fig. 2 is a flowchart of a switch cabinet discharge monitoring method according to the present invention.
Detailed Description
The invention discloses a switch cabinet discharge monitoring device, which is described in detail in the following by combining with the embodiment of the attached drawings.
Example (b): as shown in the figure, the switch cabinet discharge monitoring device comprises a data acquisition processor, a light wave detector and an output circuit, wherein the light wave detector and the output circuit are used for detecting ultraviolet light waves with the wavelength of 200-320nm, the light wave detector and the output circuit are respectively connected with the data acquisition processor, the output circuit is realized by adopting an antenna 1, the data acquisition processor and the output circuit are communicated through GPRS, the switch cabinet discharge monitoring device further comprises a shell 2, a stepping motor 3, a rotating shaft 4 and a sliding cover 5, the stepping motor 3, the data acquisition processor and the light wave detector are all arranged in the shell 2, the stepping motor 3 is connected with the data acquisition processor, the rotating shaft 4 extends out of the shell 2 into the shell 2 to be connected with the stepping motor 3, the sliding cover 5 is positioned outside the shell 2 and fixed on the rotating shaft 4, the top of the shell 2 is provided with an opening 6 for the ultraviolet light waves to pass through, the light wave, the stepping motor 3 is used for driving the rotating shaft 4 to rotate periodically, the rotating angle is 180 degrees each time, when the rotating shaft 4 rotates periodically, the sliding cover 5 periodically completely closes or completely opens the opening 6, and the antenna 1 is installed on the shell 2 and penetrates through the shell 2.
In this embodiment, the opening 6 is a circular opening 6, and has a diameter of 20-30 mm.
In this embodiment, the top of the optical detector is 3-5mm away from the opening 6.
In this embodiment, the material of the sliding cover 5 is hard plastic.
The invention also discloses a discharging method of the switch cabinet discharging monitoring device, and the discharging method of the switch cabinet discharging monitoring device is further described in detail by combining the embodiment of the attached drawings.
Example (b): as shown in fig. 1 and 2, a method for monitoring discharge of a switch cabinet includes the following steps:
step 4, the data acquisition processor outputs the signal output by the light wave detector through an output circuit, and drives the stepping motor 3 to rotate anticlockwise for 180 degrees and then enter a low-power-consumption dormant state after being reset;
and 5, when the next period comes, the stepping motor 3 is started again, and the steps 3 and 4 are repeated and repeated.
In this embodiment, the data acquisition processor controls the stepping motor 3 to rotate 180 degrees clockwise by sending a forward rotation signal and a pulse signal with a fixed number of steps.
In this embodiment, the opening 6 is a circular opening 6, and has a diameter of 20-30 mm.
In this embodiment, the top of the optical detector is 3-5mm away from the opening 6.
In this embodiment, the material of the sliding cover 5 is hard plastic.
Claims (9)
1. A switch cabinet discharge monitoring device comprises a data acquisition processor, a light wave detector and an output circuit, wherein the light wave detector and the output circuit are used for detecting ultraviolet light waves with the wavelength of 200-320nm, the light wave detector and the output circuit are respectively connected with the data acquisition processor, the output circuit is realized by adopting an antenna, and the data acquisition processor and the output circuit are communicated through GPRS (general packet radio service), the switch cabinet discharge monitoring device is characterized by further comprising a shell, a stepping motor, a rotating shaft and a sliding cover, the stepping motor, the data acquisition processor and the light wave detector are all arranged in the shell, the stepping motor is connected with the data acquisition processor, the rotating shaft extends out of the shell into the shell to be connected with the stepping motor, the sliding cover is positioned outside the shell and fixed on the rotating shaft, the top of the shell is provided with an opening for ultraviolet light waves to pass through, the light wave detector is positioned under the opening, the stepping motor is used for driving the rotating shaft to rotate periodically, the rotating angle is 180 degrees each time, when the rotating shaft rotates periodically, the sliding cover periodically completely seals or completely opens the opening, and the antenna is arranged on the shell and penetrates through the shell.
2. The switch cabinet discharge monitoring device according to claim 1, wherein the opening is a circular opening and has a diameter of 20-30 mm.
3. The switch cabinet discharge monitoring device according to claim 1, wherein the top of the optical wave detector is vertically spaced from the opening by a distance of 3-5 mm.
4. The switch cabinet discharge monitoring device according to claim 1, wherein the material of the sliding cover is rigid plastic.
5. A switch cabinet discharge monitoring method is characterized by comprising the following steps:
step 1, arranging a switch cabinet discharge monitoring device in a switch cabinet, wherein the switch cabinet discharge monitoring device comprises a data acquisition processor, a light wave detector and an output circuit, the light wave detector and the output circuit are used for detecting ultraviolet light waves with the wavelength of 200-320nm, the light wave detector and the output circuit are respectively connected with the data acquisition processor, the output circuit is realized by adopting an antenna, the data acquisition processor is communicated with the output circuit through GPRS (general packet radio service), the switch cabinet discharge monitoring device also comprises a shell, a stepping motor, a rotating shaft and a sliding cover, the stepping motor, the data acquisition processor and the light wave detector are all arranged in the shell, the stepping motor is connected with the data acquisition processor, the rotating shaft extends out of the shell into the shell and is connected with the stepping motor, the sliding cover is positioned outside the shell and fixed on the rotating shaft, the top of the shell is provided with an opening for ultraviolet light waves to pass through, the light wave detector is positioned right below the opening, the stepping motor is used for driving the rotating shaft to rotate periodically, the rotating angle is 180 degrees each time, when the rotating shaft rotates periodically, the sliding cover periodically completely closes or completely opens the opening, the antenna is installed on the shell and passes through the shell, and in an initial state, the sliding cover closes the opening;
step 2, setting the starting period of the stepping motor in the data acquisition processor, wherein the stepping motor is periodically started in the data acquisition processor;
step 3, when the stepping motor is started, the stepping motor drives the rotating shaft to rotate 180 degrees clockwise, the sliding cover rotates 180 degrees clockwise to leave the opening, the opening is completely opened, and the optical wave detector senses whether ultraviolet light exists in the switch cabinet and generates a corresponding signal to be output to the data acquisition processor;
step 4, the data acquisition processor outputs the signal output by the light wave detector through the output circuit, drives the stepping motor to rotate anticlockwise for 180 degrees and then enters a low-power-consumption dormant state after being reset;
and 5, when the next period comes, the stepping motor is started again, and the steps 3 and 4 are repeated and repeated.
6. The method as claimed in claim 5, wherein the data acquisition processor controls the stepping motor to rotate 180 degrees clockwise by sending a forward rotation signal and a fixed number of steps of pulse signals.
7. The method as claimed in claim 5, wherein the opening is a circular opening with a diameter of 20-30 mm.
8. The method according to claim 5, wherein the top of the optical wave detector is vertically spaced from the opening by a distance of 3-5 mm.
9. The method as claimed in claim 5, wherein the sliding cover is made of rigid plastic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910892643 | 2019-09-20 | ||
| CN2019108926434 | 2019-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111077414A true CN111077414A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911225126.8A Pending CN111077414A (en) | 2019-09-20 | 2019-12-04 | Switch cabinet discharge monitoring device and method |
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| CN (1) | CN111077414A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466614A (en) * | 2021-06-17 | 2021-10-01 | 广西电网有限责任公司梧州供电局 | Method and device for calibrating insulator discharge position based on three-optical-path handheld ultraviolet instrument |
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| CN108731801A (en) * | 2018-05-24 | 2018-11-02 | 佛山光之瞳电子科技有限公司 | A kind of light wave detection device and method with driving lid |
| CN211718445U (en) * | 2019-09-20 | 2020-10-20 | 广西电网有限责任公司梧州供电局 | Switch cabinet discharge monitoring device |
-
2019
- 2019-12-04 CN CN201911225126.8A patent/CN111077414A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738190A (en) * | 1986-04-11 | 1988-04-19 | Sheu Muh Chuan | Fan casing with cover |
| JP2004144520A (en) * | 2002-10-22 | 2004-05-20 | Shimadzu Corp | Infrared gas analyzer |
| CN202393411U (en) * | 2011-12-08 | 2012-08-22 | 辽宁省电力有限公司本溪供电公司 | Detection window installed on electrical equipment |
| CN102496236A (en) * | 2011-12-27 | 2012-06-13 | 公安部沈阳消防研究所 | Direct-injection type flame detector with self-checking light source and flame detection method |
| JP3183551U (en) * | 2013-03-06 | 2013-05-23 | 静岡県 | Optical discharge detector |
| CN105510782A (en) * | 2015-12-30 | 2016-04-20 | 华北电力大学 | Switch cabinet partial discharge intelligent online monitoring system based on ultraviolet method and ultrahigh-frequency method |
| CN205333119U (en) * | 2016-01-19 | 2016-06-22 | 国家电网公司 | Low -voltage switchgear on -line monitoring device in intelligence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466614A (en) * | 2021-06-17 | 2021-10-01 | 广西电网有限责任公司梧州供电局 | Method and device for calibrating insulator discharge position based on three-optical-path handheld ultraviolet instrument |
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