CN112540274B - Switch cabinet partial discharge detection device and system - Google Patents
Switch cabinet partial discharge detection device and system Download PDFInfo
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- CN112540274B CN112540274B CN202011487587.5A CN202011487587A CN112540274B CN 112540274 B CN112540274 B CN 112540274B CN 202011487587 A CN202011487587 A CN 202011487587A CN 112540274 B CN112540274 B CN 112540274B
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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
- G01R31/1227—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 of components, parts or materials
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- Gas-Insulated Switchgears (AREA)
- Testing Relating To Insulation (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a switch cabinet partial discharge detection device and system, which comprises a switch cabinet, a plurality of electromagnetic wave sensors, a mounting seat, a mounting plate, a detector, a computer, a display lamp and an alarm, wherein the switch cabinet comprises a cabinet body and a cabinet door, the mounting seat comprises a mounting seat body, a sliding rod, a limiting block and a spring, and the sliding rod is provided with a limiting hole, and the mounting seat body is provided with a first groove, a first sliding chute and a second sliding chute. When the detection device needs to be replaced, an electrician draws the sliding rod out of the sliding groove by using a hand to slide in the sliding groove, the sliding rod moves away from the mounting plate, and then the mounting plate and the detector are picked off by the hand, so that the detection device is detached. The problem of traditional cubical switchboard partial discharge detection device damage need change unchangeably is solved.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a device and a system for detecting partial discharge of a switch cabinet.
Background
The switch cabinet comprises various electrical elements, is widely applied to various substations of an electric power system, and is easy to generate partial discharge due to manufacturing process, installation process and the like. The partial discharge is the discharge which occurs between the electrodes but does not penetrate through the electrodes, and the partial discharge phenomenon affects the insulation inside the switch cabinet, and finally causes insulation breakdown and insulation accidents. At present, there are many technical methods for detecting partial discharge of a switch cabinet, but detection equipment for detecting partial discharge of the switch cabinet is damaged and needs to be replaced quite unchanged.
Disclosure of Invention
The invention aims to provide a device and a system for detecting partial discharge of a switch cabinet, and aims to solve the problem that detection equipment for partial discharge of the switch cabinet is damaged and needs to be replaced invariably.
In order to achieve the above object, in one aspect, the present invention provides a device for detecting a partial discharge of a switch cabinet, including a switch cabinet, a plurality of electromagnetic wave sensors, a mounting seat, a mounting plate, a detector and a computer, wherein the switch cabinet includes a cabinet body and a cabinet door, the cabinet door is rotatably connected with the cabinet body and is located at one side of the cabinet body, the plurality of electromagnetic wave sensors are fixedly connected with the cabinet body and are located around an inner wall of the cabinet body, the mounting seat includes a mounting seat body, a sliding rod, a limiting block and a spring, the mounting seat body is fixedly connected with the cabinet body and is located at the inner wall of the cabinet body, the mounting seat body has a first groove, a first sliding groove and a sliding groove, the first groove is located at a side of the mounting seat body far from the cabinet body, the sliding groove is located in the mounting seat body and is communicated with the first groove, the utility model discloses a mounting structure, including mounting base body, mounting base, stopper, spring, mounting panel, mounting base body, mounting groove, mounting panel lateral wall, the mounting panel with the connection is dismantled to the mounting base body, and is located in first recess, the slide bar with mounting base body sliding connection, and be located in the spout, the slide bar has spacing hole, spacing hole site in the slide bar is close to first spout one side, the stopper with mounting base body sliding connection, and be located in first spout, the spring with mounting panel body fixed connection, and be located in first spout, and with stopper fixed connection, the detector with mounting panel fixed connection, and it is a plurality of electromagnetic wave sensor electricity is connected, and is located the mounting panel is kept away from mounting groove one side, the computer with detector wireless connection, and be located cabinet body one side.
The sliding rod is provided with a rubber sleeve, and the rubber sleeve is sleeved on one side, far away from the sliding groove, of the sliding rod.
The mounting seat is provided with a protruding column, the protruding column is located in the first groove, the mounting plate is provided with a second groove, and the second groove is located on one side, close to the mounting seat, of the mounting plate and corresponds to the protruding column.
The detector comprises a circuit board and a filter, wherein the circuit board is fixedly connected with the mounting plate and is located at one side of the mounting seat body, the mounting plate is far away from the circuit board, and the filter is electrically connected with the circuit board and is located at one side of the circuit board.
The detector comprises a circuit board and a filter, wherein the circuit board is fixedly connected with the mounting plate and is located far away from the mounting plate on one side of the mounting seat body, and the filter is electrically connected with the circuit board and is located on one side of the circuit board.
The detector also comprises a radio frequency module, wherein the radio frequency module is fixedly connected with the circuit board and is positioned on one side of the circuit board.
In a second aspect, the invention further provides a switch cabinet partial discharge detection system, which includes a switch cabinet partial discharge detection device and an alarm, wherein the alarm is electrically connected with the computer, fixedly connected with the cabinet door, and located on one side of the cabinet door away from the cabinet body.
The switch cabinet partial discharge detection system further comprises a display lamp, wherein the display lamp is electrically connected with the computer, fixedly connected with the cabinet door and located at one side of the cabinet body, far away from the cabinet door.
According to the device and the system for detecting the partial discharge of the switch cabinet, the detector and the cabinet body are detachably connected through the mounting seat and the mounting plate, so that the problems are solved. The electromagnetic wave sensor senses the electromagnetic wave generated by the work of the electric elements in the cabinet body, the sensed electromagnetic wave is transmitted to the detector, the detector transmits the received signal to the computer, and the computer calculates and judges whether to discharge or not to finish the partial discharge detection. When the detector needs to be changed, will through electrician's utilization hand slide bar on the mount pad is outwards taken out, the slide bar leaves the mounting panel surface, the mounting panel with detector on the mounting panel falls by the action of gravity, realizes the dismantlement of detector to it is right to be convenient for electrician the detector is changed. In the process of drawing the sliding rod, the limiting block is pushed by the spring to enter the limiting hole, so that an electrician is prevented from drawing the sliding rod away from the mounting seat. After the detector is replaced, the mounting seat and the detector are placed in the first groove of the mounting seat, the sliding rod is pushed to slide again, the limiting block compresses the spring, the limiting block is retracted into the first sliding groove, the sliding rod slides into the sliding groove to act on the surface of the mounting plate, the mounting plate is compressed, the mounting plate is prevented from falling, and the detector is mounted. The problem of traditional cubical switchboard partial discharge detection device damage need change unchangeably is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a switch cabinet partial discharge detection apparatus and system according to the present invention;
FIG. 2 is a partial enlarged view A of FIG. 1;
FIG. 3 is a side view of a switchgear partial discharge detection apparatus of the present invention;
FIG. 4 is a cross-sectional view taken along plane C-C of FIG. 3;
fig. 5 is a cross-sectional view taken along plane D-D of fig. 3.
In the figure: 1-switch cabinet, 2-electromagnetic wave sensor, 3-mounting seat, 4-mounting plate, 5-detector, 6-computer, 7-alarm, 8-display lamp, 11-cabinet body, 12-cabinet door, 31-mounting seat body, 32-slide bar, 33-limiting block, 34-spring, 51-circuit board, 52-filter, 53-radio frequency module, 61-computer body, 62-analysis electric plate, 311-first groove, 312-first sliding groove, 313-second sliding groove, 321-limiting hole, 322-rubber sleeve, 323-projecting column, 41-second groove, 621-converter, 622-receiver, 623-analysis electric plate body.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-5, in a first aspect, the present invention provides a switch cabinet partial discharge detection apparatus: the electromagnetic wave sensor installation structure comprises a switch cabinet 1, a plurality of electromagnetic wave sensors 2, an installation seat 3, an installation plate 4, a detector 5 and a computer 6, wherein the switch cabinet 1 comprises a cabinet body 11 and a cabinet door 12, the cabinet door 12 is rotationally connected with the cabinet body 11 and is positioned on one side of the cabinet body 11, the plurality of electromagnetic wave sensors 2 are fixedly connected with the cabinet body 11 and are positioned on the periphery of the inner wall of the cabinet body 11, the installation seat 3 comprises an installation seat body 31, a sliding rod 32, a limiting block 33 and a spring 34, the installation seat body 31 is fixedly connected with the cabinet body 11 and is positioned on the inner wall of the cabinet body 11, the installation seat body 31 is provided with a first groove 311, a first sliding groove 312 and a sliding groove 313, the first groove 311 is positioned on one side of the installation seat body 31, the sliding groove 313 is positioned in the installation seat body 31 and is communicated with the first groove 311, the first sliding groove 312 is located on the side wall of the sliding groove 313, the mounting plate 4 is detachably connected to the mounting seat body 31 and located in the first groove 311, the sliding rod 32 is slidably connected to the mounting seat body 31 and located in the sliding groove 313, the sliding rod 32 has a limiting hole 321, the limiting hole 321 is located on the side of the sliding rod 32 close to the first sliding groove 312, the limiting block 33 is slidably connected to the mounting seat body 31 and located in the first sliding groove 312, the spring 34 is fixedly connected to the mounting plate 4 and located in the first sliding groove 312 and fixedly connected to the limiting block 33, the detector 5 is fixedly connected to the mounting plate 4 and electrically connected to the electromagnetic wave sensors 2 and located in the mounting plate 4 far away from the mounting seat 3, and the computer 6 is wirelessly connected to the detector 5, and is located at one side of the cabinet body 11.
In this embodiment, a plurality of electromagnetic wave sensors 2 sense electromagnetic waves generated by operation of electrical components in the cabinet 11, the sensed electromagnetic waves are transmitted to the detector 5, the detector 5 transmits received signals to the computer 6, and the computer 6 performs calculation to determine whether to discharge, so as to complete partial discharge detection. When the detector 5 needs to be replaced, the electrician uses the hands to draw the sliding rod 32 out of the mounting base 3, the sliding rod 32 leaves the surface of the mounting plate 4, the mounting plate 4 and the detector 5 on the mounting plate 4 fall under the action of gravity, so that the detector 5 is detached, and the electrician can replace the detector 5 conveniently. In the process of extracting the slide bar 32, the spring 34 pushes the limit block 33 into the limit hole 321, so as to prevent an electrician from extracting the slide bar 32 from the mounting seat 3. After the detector 5 is replaced, the mounting base 3 and the detector 5 are placed in the first groove 311 of the mounting base 3, the sliding rod 32 is pushed to slide again, the limiting block 33 compresses the spring 34, the limiting block 33 is retracted into the first sliding groove 312, the sliding rod 32 slides into the sliding groove 313 to act on the surface of the mounting plate 4, the mounting plate 4 is pressed to prevent the mounting plate 4 from falling, and the installation of the detector 5 is achieved. The problem of traditional cubical switchboard 1 partial discharge detection device damage need change unchangeably is solved.
Further, the sliding rod 32 is provided with a rubber sleeve 322, and the rubber sleeve 322 is sleeved on one side of the sliding rod 32 away from the sliding chute 313.
In this embodiment, the rubber sleeve 322 prevents the electrician from pushing the slide rod 32 into the mounting seat 3 and affecting the next maintenance when the electrician installs the measuring device 5.
Further, the detector 5 includes a circuit board 51 and a filter 52, the circuit board 51 is fixedly connected to the mounting plate 4 and located on one side of the mounting seat body 31 far away from the mounting plate 4, and the filter 52 is electrically connected to the circuit board 51 and located on one side of the circuit board 51.
In this embodiment, the filter 52 filters and collates the electromagnetic wave sensed by the electromagnetic wave sensor 2, and the circuit board 51 controls the upper electrical components of the detector 5 to operate normally.
Further, the detector 5 further includes a radio frequency module 53, where the radio frequency module 53 is fixedly connected to the circuit board 51 and located on one side of the circuit board 51.
In this embodiment, the detector 5 is wirelessly connected to the computer 6 through the rf module 53, and transmits the signal transmitted by the filter 52 to the computer 6.
Further, the computer 6 comprises a computer body 61 and an analysis electric board 62, wherein the analysis electric board 62 is electrically connected with the computer body 61 and is positioned on one side of the computer body 61.
In the present embodiment, the signal transmitted from the measuring device 5 is analyzed by the analyzing electric board 62, and the analysis result is transmitted to the computer main body 61.
Further, the analysis electrode 62 includes an analysis electrode body 623, a transducer 621 and a receiver 622, the transducer 621 is electrically connected to the analysis electrode body 623 and is located at one side of the analysis electrode body 623, and the receiver 622 is fixedly connected to the analysis electrode body 623 and is located at one side of the transducer 621.
In this embodiment, the rf module 53 transmits the detected signal to the receiver 622, the receiver 622 receives the signal and transmits the signal to the converter 621, and the converter 621 converts the radio wave signal into an electrical signal and transmits the electrical signal to the computer body 61 through the analyzing board 62.
Further, the mounting base 3 further has a protruding column 323, the protruding column 323 is located in the first recess 311, the mounting plate 4 has a second recess 41, and the second recess 41 is located on a side of the mounting plate 4 close to the mounting base 3 and corresponds to the protruding column 323.
In the present embodiment, the mounting plate 4 and the mounting base 3 are engaged with each other by the stud 323 and the second notch 41, so that the mounting plate 4 and the measuring device 5 are prevented from falling off due to gravity after the electrician pulls out the slide bar.
In a second aspect, the present invention further provides a switch cabinet partial discharge detection system, including a switch cabinet partial discharge detection apparatus and an alarm 7, where the alarm 7 is electrically connected to the computer 6, and is fixedly connected to the cabinet door 12, and is located on a side of the cabinet door 12 away from the cabinet body 11.
In the present embodiment, the computer body 61 detects partial discharge, and controls the alarm 7 to generate an alarm to remind an electrician to perform the detection, thereby preventing an electrical accident caused by long-term partial discharge.
Furthermore, cubical switchboard partial discharge detecting system still includes display lamp 8, display lamp 8 with computer 6 electricity is connected, and with cabinet door 12 fixed connection, and be located cabinet door 12 is kept away from cabinet 11 one side.
In the present embodiment, when the computer body 61 detects partial discharge, the alarm 7 is controlled to issue an alarm, and the indicator light 8 is controlled to emit light, after an electrician checks the electrical components in the cabinet 11, the indicator light 8 can determine whether there is partial discharge.
The working principle and the using process of the invention are as follows: after the electromagnetic wave detecting device is installed, the electromagnetic wave detecting device comprises a switch cabinet 1, a plurality of electromagnetic wave sensors 2, a mounting seat 3, a mounting plate 4, a detector 5, a computer 6, an alarm 7 and a display lamp 8, wherein the switch cabinet 1 comprises a cabinet body 11 and a cabinet door 12, the mounting seat 3 comprises a mounting seat body 31, a sliding rod 32, a limiting block 33 and a spring 34, the mounting seat body 31 is provided with a first groove 311, a first sliding groove 312, a second sliding groove 313 and a protruding column 323, the mounting plate 4 is provided with a second groove 41, the sliding rod 32 is provided with a limiting hole 321 and a rubber sleeve 322, the detector 5 comprises a circuit board 51, a filter 52 and a radio frequency module 53, the computer 6 comprises a computer body 61 and an analyzing electric board 62, and the analyzing electric board 62 further comprises a converter 621 and a receiver 622. In the invention, a plurality of electromagnetic wave sensors 2 sense electromagnetic waves generated by the operation of electrical elements in the cabinet body 11, the sensed electromagnetic waves are transmitted to a filter 52 of the detector 5, the filter 52 filters and arranges the electromagnetic wave sensors 2 by sensing the electric waves, and the circuit board 51 controls the normal operation of the upper electrical elements of the detector 5. The signal transmitted by the filter 52 is transmitted to the analyzing electric board 62, the receiver 622 on the analyzing electric board 62 receives the signal of the rf module 53 and transmits the signal to the converter 621, and the converter 621 converts the electric wave signal into an electric signal and transmits the electric signal to the computer body 61 through the analyzing electric board 62. And the computer 6 calculates and judges whether to discharge or not to finish the partial discharge detection. The computer body 61 detects partial discharge, controls the alarm 7 to send an alarm to remind an electrician to check, and prevents electrical accidents caused by long-time partial discharge. After an electrician checks the electric elements in the cabinet 11 by the display lamp 8, the display lamp 8 can judge whether partial discharge exists. When the measuring instrument 5 needs to be replaced, the electrician uses the hand to pull out the slide rod 32 on the mounting base 3, the slide rod 32 leaves the surface of the mounting plate 4, the mounting plate 4 is clamped with the mounting base 3 through the protruding column 323 and the second groove 41, the mounting plate 4 and the measuring instrument 5 are prevented from falling off due to gravity after the electrician pulls out the slide rod, the mounting plate 4 and the measuring instrument 5 are taken off again by using the hand, the dismounting of the measuring instrument 5 is realized, and the electrician can conveniently replace the measuring instrument 5. In the process of extracting the slide bar 32, the spring 34 pushes the limit block 33 into the limit hole 321, so as to prevent an electrician from extracting the slide bar 32 from the mounting seat 3. After the detector 5 is replaced, the mounting base 3 and the detector 5 are placed in the first groove 311 of the mounting base 3, the slide rod 32 is pushed to slide again, the limiting block 33 compresses the spring 34 to withdraw the limiting block 33 into the first sliding groove 312, the slide rod 32 slides into the sliding groove 313 to act on the surface of the mounting plate 4, the mounting plate 4 is pressed, and the mounting plate 4 is prevented from falling, so that the installation of the detector 5 is realized. The rubber sleeve 322 prevents an electrician from pushing the slide bar 32 into the mounting seat 3 to affect the next maintenance when the detector 5 is installed. The problem of traditional cubical switchboard partial discharge detection device damage need change unchangeably is solved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A switch cabinet partial discharge detection device is characterized in that,
the electromagnetic wave sensor installation structure comprises a switch cabinet, a plurality of electromagnetic wave sensors, an installation seat, an installation plate, a detector and a computer, wherein the switch cabinet comprises a cabinet body and a cabinet door, the cabinet door is rotatably connected with the cabinet body and is positioned on one side of the cabinet body, the electromagnetic wave sensors are fixedly connected with the cabinet body and are positioned around the inner wall of the cabinet body, the installation seat comprises an installation seat body, a sliding rod, a limiting block and a spring, the installation seat body is fixedly connected with the cabinet body and is positioned on the inner wall of the cabinet body, the installation seat body is provided with a first groove, a first sliding groove and a sliding groove, the first groove is positioned on one side of the installation seat body far away from the cabinet body, the sliding groove is positioned in the installation seat body and is communicated with the first groove, the first sliding groove is positioned on the side wall of the sliding groove, the installation plate is detachably connected with the installation seat body and is positioned in the first groove, the slide bar is connected with the mounting seat body in a sliding manner and is positioned in the sliding groove, the slide bar is provided with a limiting hole, the limiting hole is positioned at one side of the first sliding groove, the sliding block is connected with the mounting seat body in a sliding manner and is positioned in the first sliding groove, the spring is fixedly connected with the mounting plate and is positioned in the first sliding groove and is fixedly connected with the limiting block, the detector is fixedly connected with the mounting plate and is electrically connected with the electromagnetic wave sensors and is positioned at one side of the mounting plate far away from the mounting seat, the computer is wirelessly connected with the detector and is positioned at one side of the cabinet body, when the detector needs to be replaced, the slide bar on the mounting seat is outwards drawn out, the slide bar leaves the surface of the mounting plate, and the mounting plate and the detector on the mounting plate fall under the action of gravity, the disassembly of the detector is realized, in the process of extracting the sliding rod, the spring pushes the limiting block to enter the limiting hole, so that an electrician is prevented from extracting the sliding rod from the mounting seat, after the detector is replaced, the mounting seat and the detector are placed in the first groove of the mounting seat, the sliding rod is pushed to slide again, the spring is compressed by the limiting block, the limiting block is retracted into the first sliding groove, the sliding rod slides into the sliding groove to act on the surface of the mounting plate, the mounting plate is compressed, the mounting plate is prevented from falling, and the installation of the detector is realized.
2. The partial discharge detection device of claim 1,
the sliding rod is provided with a rubber sleeve, and the rubber sleeve is sleeved on one side, far away from the sliding groove, of the sliding rod.
3. The partial discharge detection device of switch cabinet as claimed in claim 1,
the mounting seat is further provided with a protruding column, the protruding column is located in the first groove, the mounting plate is provided with a second groove, and the second groove is located on one side, close to the mounting seat, of the mounting plate and corresponds to the protruding column.
4. The partial discharge detection device of switch cabinet as claimed in claim 1,
the detector comprises a circuit board and a filter, wherein the circuit board is fixedly connected with the mounting plate and is located at one side of the mounting seat body, the mounting plate is kept away from the circuit board, and the filter is electrically connected with the circuit board and is located at one side of the circuit board.
5. The switch cabinet partial discharge detection device of claim 4,
the detector also comprises a radio frequency module, wherein the radio frequency module is fixedly connected with the circuit board and is positioned on one side of the circuit board.
6. A switch cabinet partial discharge detection system comprising a switch cabinet partial discharge detection apparatus according to any one of claims 1 to 5,
still include the siren, the siren with computer electricity is connected, and with cabinet door fixed connection, and be located the cabinet door is kept away from cabinet body one side.
7. The switch cabinet partial discharge detection system of claim 6,
still include the display lamp, the display lamp with computer electricity is connected, and with cabinet door fixed connection, and be located the cabinet door is kept away from cabinet body one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487587.5A CN112540274B (en) | 2020-12-16 | 2020-12-16 | Switch cabinet partial discharge detection device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487587.5A CN112540274B (en) | 2020-12-16 | 2020-12-16 | Switch cabinet partial discharge detection device and system |
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| CN112540274A CN112540274A (en) | 2021-03-23 |
| CN112540274B true CN112540274B (en) | 2023-02-28 |
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| CN202011487587.5A Active CN112540274B (en) | 2020-12-16 | 2020-12-16 | Switch cabinet partial discharge detection device and system |
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| CN203191507U (en) * | 2013-04-28 | 2013-09-11 | 国家电网公司 | Partial discharge monitoring system of multi-face switch cabinet |
| CN207908621U (en) * | 2018-02-26 | 2018-09-25 | 海南电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear ultrasonic alarm |
| CN211236104U (en) * | 2019-11-20 | 2020-08-11 | 鞍山市宏泰电气有限公司 | Switch cabinet partial discharge signal detection device |
| CN111638432A (en) * | 2020-06-10 | 2020-09-08 | 国网山东省电力公司烟台供电公司 | Automatic switch cabinet partial discharge detection equipment based on ultrahigh frequency detection method |
| CN212033528U (en) * | 2020-03-25 | 2020-11-27 | 北京兴桥电气设备有限公司 | Install cable duct body and be convenient for low pressure pull-out type cubical switchboard that ventilates |
| CN112014699A (en) * | 2020-08-27 | 2020-12-01 | 国家电网有限公司 | High-voltage power equipment partial discharge comprehensive inspection instrument |
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2020
- 2020-12-16 CN CN202011487587.5A patent/CN112540274B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203191507U (en) * | 2013-04-28 | 2013-09-11 | 国家电网公司 | Partial discharge monitoring system of multi-face switch cabinet |
| CN207908621U (en) * | 2018-02-26 | 2018-09-25 | 海南电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear ultrasonic alarm |
| CN211236104U (en) * | 2019-11-20 | 2020-08-11 | 鞍山市宏泰电气有限公司 | Switch cabinet partial discharge signal detection device |
| CN212033528U (en) * | 2020-03-25 | 2020-11-27 | 北京兴桥电气设备有限公司 | Install cable duct body and be convenient for low pressure pull-out type cubical switchboard that ventilates |
| CN111638432A (en) * | 2020-06-10 | 2020-09-08 | 国网山东省电力公司烟台供电公司 | Automatic switch cabinet partial discharge detection equipment based on ultrahigh frequency detection method |
| CN112014699A (en) * | 2020-08-27 | 2020-12-01 | 国家电网有限公司 | High-voltage power equipment partial discharge comprehensive inspection instrument |
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| CN112540274A (en) | 2021-03-23 |
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