CN113030655A - Hand-held type partial discharge detection device - Google Patents
Hand-held type partial discharge detection device Download PDFInfo
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- CN113030655A CN113030655A CN202110126584.7A CN202110126584A CN113030655A CN 113030655 A CN113030655 A CN 113030655A CN 202110126584 A CN202110126584 A CN 202110126584A CN 113030655 A CN113030655 A CN 113030655A
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- insulating sheath
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- General Physics & Mathematics (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a hand-held partial discharge detection device, which comprises an insulating sheath and a partial discharge detector movably arranged in the insulating sheath, wherein the insulating sheath comprises an upper shell and a lower shell, the upper shell and the lower shell are mutually buckled and connected, the front end of the insulating sheath is provided with a pressure detection device, the insulating sheath is also provided with a power supply module for supplying power to the pressure detection device, the pressure detection device is arranged at the front end of the insulating sheath, and the power supply module is arranged to supply power to the pressure detection device, thus, when the partial discharge detector is used for carrying out partial discharge detection on the cabinet surface of the power distribution cabinet, the pressure detection device can well detect whether the partial discharge detector is tightly attached to the cabinet surface of the power distribution cabinet or not so as to ensure the validity of the detected numerical value, thereby need not to carry out a lot of and detect, once detect can, promoted detection efficiency greatly, can also guarantee the accuracy that detects again to guarantee the security and the durability of switch board.
Description
Technical Field
The invention relates to the field of power operation detection equipment, in particular to a handheld partial discharge detection device.
Background
With the rapid development of national economy, the requirement on the reliability of electric power equipment is higher and higher. The transformer substation is used as the central brain of the power grid, and the importance is self-evident. It is known that a large number of high-voltage devices are present in a substation, and the partial discharge of the high-voltage devices is persistent, covert and unpredictable. In recent years, with the increasing number of transformer substations, the intelligent operation and maintenance level is improved, and the periodic partial discharge detection of the high-voltage equipment of the transformer substation is an important component of the operation and maintenance work of the transformer substation.
The partial discharge detector is a short-name high-voltage partial discharge detection device. Over time, the high-voltage electrical equipment is slowly aged, the insulation performance is reduced, and partial discharge may occur inside the high-voltage electrical equipment, which is a great hidden danger for the safety of the electrical equipment. Therefore, in order to eliminate the potential hidden trouble, the power plant staff can regularly check the condition of the equipment, check whether the equipment has partial discharge phenomenon and how serious the equipment so as to take corresponding measures in time. Therefore, the partial discharge detector is a very common power detection device, and the demand is large.
However, in order to ensure the detection accuracy, the existing partial discharge detector on the market generally detects for multiple times and takes the average value of the partial discharge detector to obtain an accurate detection value, but such operation may cause an excessively long operation time and affect the operation efficiency, and the detected value is also not necessarily accurate.
Disclosure of Invention
The invention aims to provide a handheld partial discharge detection device.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a detection device is put in hand-held type office, puts the detector including insulating sheath and activity dress in the office of insulating sheath, wherein, insulating sheath includes casing and lower casing, goes up casing and the mutual lock joint of casing down and is connected, and the front end of insulating sheath is equipped with pressure measurement device, still is equipped with the power module to pressure measurement device power supply on the insulating sheath.
Furthermore, the front end of the insulating sheath is provided with a front opening for exposing the front end of the partial discharge detector, and the pressure detection device is arranged at the edge of the front opening.
Further, the pressure detection device comprises a pressure sensor, and the pressure sensor is electrically connected with the power supply module through a lead.
Furthermore, the pressure sensors are provided with four pressure sensors and are positioned at four corners of the front end of the insulating sheath.
Furthermore, the hand-held partial discharge detection device further comprises a display module for detecting whether the front end is tightly attached to the cabinet surface when the partial discharge detection device is detected, and the display module is electrically connected with the pressure detection device and the power supply module.
Furthermore, the display module comprises four display lamps, the four display lamps are respectively electrically connected with the four pressure sensors, and one corner of the front end of the partial discharge detector is tightly attached to the cabinet surface, so that the corresponding display lamp is turned on.
Further, the display lamp is arranged on the upper surface of the rear end of the insulating sheath.
Furthermore, the display lamp is a halogen bulb, and a plurality of halogen bulbs are arranged at intervals in a straight line.
Furthermore, the pressure sensor is a pressure probe, and the length of the pressure probe protruding out of the front end face of the insulating sheath is 3-10 mm.
Furthermore, the power module is arranged at the rear end of the insulating sheath, a wire groove is formed in the inner side wall of the insulating sheath, and the wire is buried along the guide groove to electrically connect the pressure sensor with the power module.
After the technical scheme is adopted, the invention has the following advantages:
1. according to the invention, the insulating sheath is arranged to comprise the upper shell and the lower shell, the upper shell and the lower shell are mutually buckled and connected to facilitate the processing and forming of the insulating sheath, the pressure detection device is arranged at the front end of the insulating sheath, and the power supply module is arranged to supply power to the pressure detection device, so that when the partial discharge detector is used for carrying out partial discharge detection on the cabinet surface of the power distribution cabinet, the pressure detection device can well detect whether the partial discharge detector is tightly attached to the cabinet surface of the power distribution cabinet or not, the validity of a detected numerical value is ensured, multiple detection is not needed, and only one detection is carried out, the detection efficiency is greatly improved, and the detection accuracy can also be ensured, thereby ensuring the safety and the durability of the power distribution cabinet.
2. Through the front end at insulating sheath set up the front opening that supplies the front end of partial discharge detector to locate front opening's edge with pressure measurement, compressing tightly insulating sheath on the cabinet face like this, whether pressure measurement can be better detect insulating sheath front end and compress tightly with the cabinet face, thereby guarantee vertical validity and the accuracy that detects out.
3. Pressure measurement specifically includes pressure sensor to be connected pressure sensor through the wire and power module electricity, realization pressure measurement that so can not only be fine, and pressure sensor simple structure, convenient purchase makes things convenient for pressure sensor's electricity to be connected simultaneously, thereby makes things convenient for the partial structural design and the production and processing of putting detection device.
4. Through setting pressure sensor to four and setting up in insulating sheath's front end four corners department, when carrying out the partial discharge to the cabinet door and detecting like this, through four pressure sensor's detection, the insulating sheath of assurance that can be better is hugged closely with the counter to accuracy and validity when guaranteeing the partial discharge detector and detecting.
5. Through setting up display module, and display module is connected with pressure measurement device and power module electricity, make pressure measurement device and display module be relevant, when compressing tightly insulating sheath and counter like this, whether can know insulating sheath's front end through display module and paste tightly with the counter, if do not paste tightly, display module is not bright, explain the operation is not normal, the numerical value of detection can be inaccurate, be invalid numerical value, and display module is bright, explain insulating sheath and counter paste tightly, the numerical value of detecting like this is accurate and effectual, not only promote the operation accuracy, fine promotion operating efficiency again.
6. Through specifically setting display module to including four display lamps, and four display lamps are connected with four pressure sensor electricity respectively, the display lamp that then corresponds when the front end one corner of partial discharge detector pastes tightly with the cabinet face lights for every sensor corresponds with every display lamp, and operating personnel can know rapidly like this which angle of insulating sheath does not paste tightly with the cabinet face, can adjust rapidly, in order to guarantee the accuracy that the partial discharge detected.
7. Through locating the display lamp on the upper surface of insulating sheath rear end, not only make things convenient for the operation personnel to observe the display lamp like this, make things convenient for the design installation of display lamp again simultaneously.
8. The display lamp is halogen bulb, and halogen bulb is with low costs, is equipped with a plurality ofly and is the setting of a font interval with halogen bulb simultaneously, and display effect is good, can play better demonstration and remind the effect.
9. The pressure sensor is a pressure probe, the length of the end face of the pressure probe protruding out of the insulating sheath is 3 mm-10 mm, so that the pressure probe has a certain contact distance with the cabinet surface, the insulating sheath is more reliably attached to the cabinet surface, false attachment cannot occur, and the accuracy and effectiveness of detection of the partial discharge detector are better guaranteed.
10. The power module is arranged at the rear end of the insulating sheath, the inner side wall of the insulating sheath is provided with a wire groove, and the wire is embedded along the guide groove to electrically connect the pressure sensor with the power module, so that the installation and design of the power module are facilitated, and meanwhile, the power module supplies power to the pressure detection device, and the power supply is reliable and stable.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
fig. 1 is an exploded schematic view of a handheld partial discharge detection device according to the present invention.
Fig. 2 is a schematic structural diagram of an insulating sheath in the handheld partial discharge detection device according to the present invention.
Fig. 3 is a schematic view of a partial structure of the back surface of an insulating sheath in the handheld partial discharge detection device according to the present invention.
Fig. 4 is a schematic structural diagram of the rear end of the insulating sheath in the handheld partial discharge detection device according to the present invention.
The names of the components marked in the figures are as follows:
1. an insulating sheath; 11. a front opening; 12. a rear opening; 13. an upper housing; 14. a lower housing; 141. anti-skid convex ribs; 2. a partial discharge detector; 21. a housing; 211. a power switch; 212. an adjustment key; 213. a display screen; 214. anti-skid projections; 3. a pressure detection device; 31. a first pressure probe; 32. a second pressure probe; 33. a third pressure probe; 34. a fourth pressure probe; 4. a power supply module; 41. a battery; 5. a display module; 51. a first display lamp; 52. a second display lamp; 53. a third display lamp; 54. a fourth display lamp; 6. and (4) conducting wires.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 to 4, the present invention provides a handheld partial discharge detection device, which includes an insulating sheath 1 and a partial discharge detector 2 movably installed in the insulating sheath 1, wherein the insulating sheath 1 is a plastic insulating sheath, specifically made of ABS material, to ensure good insulation of the insulating sheath, and the insulating sheath 1 includes an upper shell 13 and a lower shell 14, and the upper shell 13 and the lower shell 14 are fastened together to form a complete insulating sheath 1, so as to facilitate production and processing of the insulating sheath, reduce the wall thickness, reduce the processing material, reduce the cost, but ensure sufficient strength, prevent the insulating sheath from breaking when accidentally falling, and improve the durability; simultaneously, detector 2 is put in office includes shell 21, be equipped with switch 211 on the shell 21, adjusting key 212 and display screen 213, put the frictional force that the cover between detector and the insulating sheath was established for the reinforcing office, can set up non-slip raised 214 on the lower extreme surface of shell 21, non-slip raised 214 sets up many along the length direction equipartition interval of shell 21, and be located the lower extreme both sides department of shell 21, take off in order to prevent the office and put the detector pine, the stability of detector is put in office when guaranteeing to detect, and then guarantee the accuracy and the validity of detecting.
In this embodiment, the front end of insulating sheath 1 is equipped with pressure detection device 3, still be equipped with the power module 4 to the power supply of pressure detection device 3 on insulating sheath 1, power module 4 specifically is battery 41, battery 41 can be ordinary dry battery, also can be rechargeable battery, it is two kinds of all, like this when utilizing the partial discharge detector to carry out the partial discharge to the cabinet face of switch board and detect time measuring, whether the detection partial discharge detector that pressure detection device can be fine pastes tightly with the cabinet face of switch board, in order to guarantee the validity of the numerical value that detects out, thereby need not to carry out a lot of detections, once detect can, detection efficiency has been promoted greatly, can also guarantee the accuracy that detects, thereby guarantee the security and the durability of switch board.
Specifically, the front end of insulating sheath 1 is equipped with the front opening 11 that supplies the office to put the front end of detector 2 and expose, and the rear end of insulating sheath 1 is equipped with the rear opening 12 that supplies the office to put the rear end of detector 2 and expose, locates front opening 11's edge with pressure measurement device 3, compresses tightly insulating sheath on the cabinet face like this, whether pressure measurement device can be better detect the insulating sheath front end and compress tightly with the cabinet face to guarantee vertical validity and the accuracy that detects out.
Moreover, the pressure detection device 3 comprises a pressure sensor which is electrically connected with the power module 4 through a lead 6, so that pressure detection can be well realized, the pressure sensor is simple in structure and convenient to purchase, and meanwhile, the pressure sensor is convenient to electrically connect, and therefore the structural design and the production and processing of the partial discharge detection device are facilitated; simultaneously, can set pressure sensor to four and set up in insulating sheath 1's front end four corners department, like this when carrying out the partial discharge to the cabinet door and examining, through four pressure sensor's detection, the insulating sheath of assurance that can be better is hugged closely with the cabinet face to guarantee accuracy and validity that the partial discharge detector examined time measuring.
In order to improve the accuracy of pressure detection, the handheld partial discharge detection device can further comprise a display module 5 for detecting and displaying whether the front end of the partial discharge detector is tightly attached to the cabinet surface or not during detection, the display module 5 is electrically connected with the pressure detection device 3 and the power supply module 4, so that the pressure detection device is associated with the display module, when the insulating sheath is tightly pressed against the cabinet surface, whether the front end of the insulating sheath is tightly attached to the cabinet surface or not can be known through the display module, if the front end of the insulating sheath is not tightly attached to the cabinet surface, the display device is not bright, operation is not specified, the detected numerical value can be inaccurate and is an invalid numerical value, the display device is bright, the insulating sheath is specified to be tightly attached to the cabinet surface, the detected numerical value is accurate and effective, the operation accuracy is improved, and the operation efficiency is improved.
In order to guarantee to show the warning effect, can specifically set display module 5 to including four display lamps, four display lamps specifically include first display lamp 51, second display lamp 52, third display lamp 53 and fourth display lamp 54, and four display lamps are connected with four pressure sensor electricity respectively, the display lamp that then corresponds when the front end one corner of partial discharge detector pastes tightly with the cabinet face lights like this, make every sensor correspond with every display lamp, so the operation personnel can know rapidly which corner of insulating sheath does not paste tightly with the cabinet face, can adjust rapidly, in order to guarantee the accuracy that the partial discharge detected.
And more specifically, pressure sensor specifically is pressure probe, and pressure probe protrusion is 3mm ~ 10mm, specifically is 5mm in the length of terminal surface before insulating sheath 1 for pressure probe has certain contact distance with the cabinet face, guarantees to hug closely more reliably between insulating sheath and the cabinet face, can not appear false hugging closely, thereby better assurance partial discharge detector detects accuracy and validity.
Correspondingly, four pressure probes are provided, and the four pressure probes specifically include a first pressure probe 31, a second pressure probe 32, a third pressure probe 33 and a fourth pressure probe 34, wherein the first pressure probe 31 is electrically connected with a first display lamp 51, the second pressure probe 32 is electrically connected with a second display lamp 52, the third pressure probe 33 is electrically connected with a third display lamp 53, and the fourth pressure probe 34 is electrically connected with a fourth display lamp 54.
In addition, four display lamps (51, 52, 53, 54) can be arranged on the upper surface of the rear end of the insulating sheath 1, so that the display lamps can be conveniently observed by operators and can be conveniently designed and installed; moreover, the four display lamps (51, 52, 53 and 54) are all halogen bulbs, the cost of the halogen bulbs is low, and meanwhile, the four display lamps (51, 52, 53 and 54) are arranged at intervals in a straight line shape, so that the display effect is good, and a better display reminding effect can be achieved.
In order to conveniently supply power and ensure the reliability of power supply, the power module 4 can be arranged at the rear end of the insulating sheath 1, the inner side wall of the insulating sheath 1 is provided with a wire groove, and the wire 6 is embedded along the guide groove to electrically connect the pressure sensor with the power module 4, so that the installation and design of the power module are facilitated, meanwhile, the power module is convenient to supply power to the pressure detection device, and the power supply is reliable and stable.
In order to ensure that the operator is not easy to slip when holding the partial discharge detection device, anti-slip ribs 141 may be disposed on the outer surface of the lower casing 14, and the anti-slip ribs 141 are disposed at intervals along the length direction of the lower casing 14 to increase the friction force when holding the partial discharge detection device and prevent slipping.
Finally, the invention also discloses a detection method of the hand-held partial discharge detection device, which comprises the following steps:
s1, starting a partial discharge detector;
s2, attaching the front end face of the insulating sheath to the cabinet face of the power distribution cabinet;
s3, detecting whether four corners of the front end of the insulating sheath are tightly attached to the cabinet surface by a pressure detection device;
s4, when one corner of the front end of the insulating sheath is tightly attached to the cabinet surface, one of the display lamps is lighted; or when two corners of the front end of the insulating sheath are tightly attached to the cabinet surface, two display lamps are lighted; or when the triangle at the front end of the insulating sheath is tightly attached to the cabinet surface, three of the display lamps are lighted; or when four corners of the front end of the insulating sheath are tightly attached to the cabinet surface, the four display lamps are all lighted;
s5, when the four display lamps are all lighted, the value detected by the partial discharge detector is an effective value.
So set up, through pressure detection device can be fine detect out hand-held type partial discharge detection device whether paste tightly with the cabinet face when carrying out the partial discharge detection to the switch board, avoid the operation personnel to carry out a lot of detection in order to promote the detection accuracy, compare the current detection mode of detecting many times and seeking the average value, detection efficiency has been promoted greatly to this kind of mode, accuracy and the validity that the assurance that simultaneously can be fine again detects.
It can be understood that the pressure probes may be only two and arranged diagonally, and correspondingly, the display lamps may be only two.
It can be understood that the length of the pressure probe protruding from the front end face of the insulating sheath can also be 3mm, 4mm, 6mm, 7mm, 8mm, 9mm, 10mm and the like.
In addition to the above preferred embodiments, the technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the technical solutions of any one embodiment are combined with the technical solutions of one or more other embodiments within the protection scope of the present invention. Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a detection device is put in hand-held type office, puts the detector including insulating sheath and activity dress in the office of insulating sheath, its characterized in that, insulating sheath includes casing and lower casing, goes up casing and the mutual lock joint of casing down, and the front end of insulating sheath is equipped with pressure measurement device, still is equipped with the power module to pressure measurement device power supply on the insulating sheath.
2. The handheld partial discharge detection device according to claim 1, wherein the front end of the insulating sheath is provided with a front opening for exposing the front end of the partial discharge detector, and the pressure detection device is disposed at an edge of the front opening.
3. The hand-held partial discharge detection device according to claim 1, wherein the pressure detection device comprises a pressure sensor, and the pressure sensor is electrically connected to the power supply module through a wire.
4. The hand-held partial discharge detection device according to claim 3, wherein the pressure sensors are four and located at four corners of the front end of the insulating sheath.
5. The device according to claim 4, further comprising a display module for detecting whether the front end of the display partial discharge detector is attached to the cabinet surface during detection, wherein the display module is electrically connected to the pressure detection device and the power supply module.
6. The device according to claim 5, wherein the display module comprises four display lamps, the four display lamps are electrically connected to the four pressure sensors, respectively, and when one corner of the front end of the partial discharge detector is tightly attached to the cabinet surface, the corresponding display lamp is turned on.
7. The hand-held partial discharge detection device of claim 6 wherein the display is disposed on an upper surface of the rear end of the insulating sheath.
8. The device according to claim 6, wherein the display lamp is a halogen bulb, and the halogen bulb is provided in plurality and arranged at intervals in a straight line.
9. The device according to claim 3, wherein the pressure sensor is a pressure probe, and the length of the pressure probe protruding from the front end surface of the insulating sheath is 3mm to 10 mm.
10. The device as claimed in claim 3, wherein the power module is disposed at a rear end of the insulating sheath, and the inner sidewall of the insulating sheath is provided with a wire groove, and the wire is embedded along the guiding groove to electrically connect the pressure sensor and the power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126584.7A CN113030655A (en) | 2021-01-29 | 2021-01-29 | Hand-held type partial discharge detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126584.7A CN113030655A (en) | 2021-01-29 | 2021-01-29 | Hand-held type partial discharge detection device |
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| CN113030655A true CN113030655A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110126584.7A Pending CN113030655A (en) | 2021-01-29 | 2021-01-29 | Hand-held type partial discharge detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166442A (en) * | 2022-07-18 | 2022-10-11 | 上海格鲁布科技有限公司 | Ultrasonic partial discharge detection method, device and system based on pressure monitoring |
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| CN203630283U (en) * | 2013-11-26 | 2014-06-04 | 国家电网公司 | Hand-held detection device used for cable insulation detection |
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| CN209182435U (en) * | 2018-11-28 | 2019-07-30 | 三泰电力技术（南京）有限公司 | A kind of hand-held type local-discharge detector shell structure |
| CN111064083A (en) * | 2019-12-31 | 2020-04-24 | 西安帝凡合赢科技发展有限公司 | GGDY type power distribution cabinet |
| CN210894588U (en) * | 2019-09-19 | 2020-06-30 | 广东电网有限责任公司 | Device for GIS partial discharge detection |
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2021
- 2021-01-29 CN CN202110126584.7A patent/CN113030655A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203630283U (en) * | 2013-11-26 | 2014-06-04 | 国家电网公司 | Hand-held detection device used for cable insulation detection |
| CN107069472A (en) * | 2017-05-18 | 2017-08-18 | 国网山东省电力公司章丘市供电公司 | A kind of intelligent distribution system suitable for power supply station |
| CN209182435U (en) * | 2018-11-28 | 2019-07-30 | 三泰电力技术（南京）有限公司 | A kind of hand-held type local-discharge detector shell structure |
| CN210894588U (en) * | 2019-09-19 | 2020-06-30 | 广东电网有限责任公司 | Device for GIS partial discharge detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115166442A (en) * | 2022-07-18 | 2022-10-11 | 上海格鲁布科技有限公司 | Ultrasonic partial discharge detection method, device and system based on pressure monitoring |
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Application publication date: 20210625 |
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