CN110780170A - Spherical shell type partial discharge sensing device - Google Patents
Spherical shell type partial discharge sensing device Download PDFInfo
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- CN110780170A CN110780170A CN201911104265.5A CN201911104265A CN110780170A CN 110780170 A CN110780170 A CN 110780170A CN 201911104265 A CN201911104265 A CN 201911104265A CN 110780170 A CN110780170 A CN 110780170A
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- partial discharge
- spherical shell
- sensing device
- spherical
- ultrasonic
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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
- G01R31/1209—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 acoustic measurements
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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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- 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
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a spherical shell type partial discharge sensing device, which comprises: be used for connecting GIS equipment's detection spherical shell, detect the spherical shell and include: the mounting flange is used for connecting GIS equipment and the spherical waveguide is arranged by extending from the mounting flange; a plurality of ultrasonic partial discharge sensors disposed on the spherical waveguide; the shielding shell is connected to the detection spherical shell and used for filtering external noise; and the aviation plug is connected to the shielding shell, wherein any ultrasonic partial discharge sensor is connected with the aviation plug, and the aviation plug is used for leading out signals of the ultrasonic partial discharge sensors. The spherical shell type partial discharge sensing device provided by the invention can be used for detecting partial discharge points in GIS equipment by arranging ultrasonic partial discharge sensors at a plurality of angles on spatial positions.
Description
Technical Field
The invention relates to the field of power systems, in particular to a spherical shell type partial discharge sensing device.
Background
The partial discharge detection is an effective mode for detecting internal faults of the GIS equipment, and the existing built-in partial discharge sensor can only carry out qualitative detection on the faults and is difficult to locate.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a spherical shell type partial discharge sensing device, which realizes the detection of partial discharge points in GIS equipment by arranging ultrasonic partial discharge sensors at a plurality of angles on spatial positions.
In order to solve the above technical problem, an embodiment of the present invention provides a spherical shell type partial discharge sensing apparatus, including: be used for connecting GIS equipment's detection spherical shell, detect the spherical shell and include: the mounting flange is used for connecting GIS equipment and the spherical waveguide is arranged by extending from the mounting flange; a plurality of ultrasonic partial discharge sensors disposed on the spherical waveguide; the shielding shell is connected to the detection spherical shell and used for filtering external noise; and the aviation plug is connected to the shielding shell, wherein any ultrasonic partial discharge sensor is connected with the aviation plug, and the aviation plug is used for leading out signals of the ultrasonic partial discharge sensors.
The ultrasonic partial discharge sensors are arranged according to a certain angle value, so that the discharge signals sent by the ultrasonic partial discharge sensors are detected.
The position of a partial discharge point is obtained through the amplitude and the phase of a received partial discharge signal sent by the ultrasonic partial discharge sensor.
Wherein the angle value is 45 degrees or 90 degrees.
The spherical waveguide is provided with a partial discharge sensor mounting seat, and the ultrasonic partial discharge sensor is arranged in the partial discharge sensor mounting seat.
The partial discharge sensor mounting seat is bonded on the spherical waveguide, and the ultrasonic partial discharge sensor is bonded in the partial discharge sensor mounting seat.
Wherein, 13 ultrasonic partial discharge sensors are provided.
Wherein, the detection spherical shell is connected with the shielding shell in a bonding mode.
Wherein, the shielding case is made of aluminum alloy materials.
Wherein, one side terminal surface of shielding shell is equipped with the pilot hole that is used for assembling the aviation plug.
The spherical shell type partial discharge sensing device has the following beneficial effects: the detection spherical shell comprises a mounting flange for connecting GIS equipment and a spherical waveguide extending from the mounting flange; a plurality of ultrasonic partial discharge sensors disposed on the spherical waveguide; the shielding shell is connected to the detection spherical shell and used for filtering external noise; and the aviation plug is connected to the shielding shell, wherein any ultrasonic partial discharge sensor is connected with the aviation plug, signals of the ultrasonic partial discharge sensors are led out through the aviation plug, and the detection of partial discharge points in the GIS equipment is realized by arranging the ultrasonic partial discharge sensors at a plurality of angles on spatial positions.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first angle of a spherical shell type partial discharge sensing device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second angle of the spherical shell type partial discharge sensing device according to the embodiment of the invention.
Fig. 3 is a schematic diagram of a blasting structure of the spherical shell type partial discharge sensing device according to the embodiment of the invention.
Fig. 4 is a schematic structural diagram of a detection spherical shell of the spherical shell type partial discharge sensing device according to the embodiment of the invention.
Fig. 5 is a schematic structural diagram of a shielding case of the spherical shell type partial discharge sensing device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1-5 show a first embodiment of a spherical shell type partial discharge sensing device according to the present invention.
The spherical shell type partial discharge sensing device in this embodiment includes: be used for connecting GIS equipment's detection spherical shell 1, detect spherical shell 1 and include: the mounting flange 11 is used for connecting GIS equipment, and the spherical waveguide 12 is arranged to extend from the mounting flange 11; a plurality of ultrasonic partial discharge sensors 3 provided on the spherical waveguide 12; a shielding shell 4 connected to the detection spherical shell 1 for filtering external noise; and the aviation plug 5 is connected to the shielding shell 4, wherein any ultrasonic partial discharge sensor 3 is connected with the aviation plug 5, and the aviation plug 5 is used for leading out signals of the ultrasonic partial discharge sensor 3.
During specific implementation, the detection spherical shell 1 is used for connecting the GIS equipment and detecting internal faults of the GIS equipment, the detection spherical shell 1 comprises a mounting flange 11 and a spherical waveguide 12, the mounting flange 11 is plate-shaped, one side of the mounting flange can be connected to the GIS equipment in an adhering mode, and the other side of the mounting flange can be connected to the shielding shell 4 in an adhering mode.
The spherical waveguide 12 is spherical, a partial discharge sensor mounting base 2 is bonded on the spherical waveguide according to a certain angle value, the partial discharge sensor mounting base 2 is cylindrical with an opening at one end, and an ultrasonic partial discharge sensor 3 is bonded at the opening end.
In this embodiment, 13 ultrasonic partial discharge sensors 3 are provided, and the number of the ultrasonic partial discharge sensors in other embodiments can be adjusted according to actual requirements. Correspondingly, the 13 ultrasonic partial discharge sensors 3 are arranged according to a certain angle value, and the angle value in this embodiment is 45 degrees or 90 degrees.
The effect of so setting is: the ultrasonic partial discharge sensors 3 can sense from a plurality of angles, sensing signals of the ultrasonic partial discharge sensors 3 are led out through the aviation plugs 5, and the detection device detects the received discharge signals sent by the ultrasonic partial discharge sensors 3 so as to calculate the position of the GIS internal fault.
Specifically, the detection device obtains the position of the partial discharge point by the amplitude and phase of the received partial discharge signal emitted by the ultrasonic partial discharge sensor 3.
Further, the shielding case 4 is a hemispherical shape, and has a hollow structure with an opening at one end. The detection spherical shell 1 provided with the ultrasonic partial discharge sensor 3 is bonded to the opening end of the shielding shell 4. The other side end face of the shield shell 4 is provided with a fitting hole 41 for fitting the aviation plug 5.
Preferably, the shielding case is made of 6061 aluminum alloy material, and the manufacturing work of the shielding case is milling and turning.
The aviation plugs 5 are assembled at the positions of the assembly holes 41 and are respectively connected with the plurality of ultrasonic partial discharge sensors 3.
When the spherical shell type partial discharge sensing device in the embodiment is specifically implemented, the ultrasonic partial discharge sensors are arranged according to a certain angle value, the ultrasonic partial discharge sensors are connected with the aviation plug, signals of the ultrasonic partial discharge sensors are led out through the aviation plug, the detection device detects discharge signals sent by the received ultrasonic partial discharge sensors to calculate the position of the internal fault of the GIS, and the detection of the internal partial discharge point of the GIS is realized by arranging the ultrasonic partial discharge sensors at multiple angles on the spatial position.
The spherical shell type partial discharge sensing device is implemented, wherein the detection spherical shell comprises a mounting flange used for connecting GIS equipment and a spherical waveguide extending from the mounting flange; a plurality of ultrasonic partial discharge sensors disposed on the spherical waveguide; the shielding shell is connected to the detection spherical shell and used for filtering external noise; and the aviation plug is connected to the shielding shell, wherein any ultrasonic partial discharge sensor is connected with the aviation plug, signals of the ultrasonic partial discharge sensors are led out through the aviation plug, and the detection of partial discharge points in the GIS equipment is realized by arranging the ultrasonic partial discharge sensors at a plurality of angles on spatial positions.
Claims (10)
1. A dome-shell partial discharge sensing device, comprising:
be used for connecting GIS equipment's detection spherical shell, it includes to detect the spherical shell: the GIS equipment mounting flange is used for connecting GIS equipment and the spherical waveguide is arranged by extending from the mounting flange;
a plurality of ultrasonic partial discharge sensors disposed on the spherical waveguide;
the shielding shell is connected to the detection spherical shell and used for filtering external noise; and
and the aviation plug is connected to the shielding shell, any ultrasonic partial discharge sensor is connected with the aviation plug, and signals of the ultrasonic partial discharge sensors are led out through the aviation plug.
2. The spherical shell partial discharge sensing device of claim 1, wherein the plurality of ultrasonic partial discharge sensors are arranged at an angle with respect to each other such that the discharge signals received from the plurality of ultrasonic partial discharge sensors are detected.
3. The spherical shell type partial discharge sensing device as claimed in claim 2, wherein the position of the partial discharge point is obtained by the amplitude and phase of the received partial discharge signal emitted by the ultrasonic partial discharge sensor.
4. The spherical shell partial discharge sensing device of claim 2, wherein the angular value is 45 degrees or 90 degrees.
5. The spherical shell type partial discharge sensing device according to claim 1, wherein a partial discharge sensor mounting seat is provided on the spherical waveguide, and the ultrasonic partial discharge sensor is mounted in the partial discharge sensor mounting seat.
6. The spherical shell partial discharge sensing device of claim 5, wherein said partial discharge sensor mount is bonded to said spherical waveguide and said ultrasonic partial discharge sensor is bonded in said partial discharge sensor mount.
7. The spherical shell partial discharge sensing device of claim 1, wherein the number of the ultrasonic partial discharge sensors is 13.
8. The spherical shell partial discharge sensing device as claimed in claim 1, wherein said sensing spherical shell and said shielding shell are adhesively attached.
9. The spherical shell partial discharge sensing device of claim 1, wherein said shield is made of an aluminum alloy material.
10. The spherical shell type partial discharge sensing device as claimed in claim 1, wherein an end face of one side of said shield shell is provided with an assembling hole for assembling said aviation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911104265.5A CN110780170A (en) | 2019-11-09 | 2019-11-09 | Spherical shell type partial discharge sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911104265.5A CN110780170A (en) | 2019-11-09 | 2019-11-09 | Spherical shell type partial discharge sensing device |
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| CN110780170A true CN110780170A (en) | 2020-02-11 |
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| CN201911104265.5A Pending CN110780170A (en) | 2019-11-09 | 2019-11-09 | Spherical shell type partial discharge sensing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763864A (en) * | 2020-12-23 | 2021-05-07 | 深圳供电局有限公司 | GIS optical fiber type ultrasonic partial discharge sensor |
| CN112763867A (en) * | 2020-12-23 | 2021-05-07 | 深圳供电局有限公司 | GIS multifrequency section ultrasonic wave partial discharge sensor |
| CN112763862A (en) * | 2020-12-23 | 2021-05-07 | 深圳供电局有限公司 | Built-in ultrasonic wave partial discharge sensor of GIS |
| CN112798907A (en) * | 2020-12-18 | 2021-05-14 | 浙江中新电力工程建设有限公司 | Multi-sensor partial playing sound signal phase detection circuit |
| CN114325269A (en) * | 2021-12-30 | 2022-04-12 | 深圳供电局有限公司 | Ultrasonic partial discharge sensor structure for superconducting cable |
| CN117347797A (en) * | 2023-09-28 | 2024-01-05 | 中国长江电力股份有限公司 | Ultrasonic array detection device and method for partial discharge |
-
2019
- 2019-11-09 CN CN201911104265.5A patent/CN110780170A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798907A (en) * | 2020-12-18 | 2021-05-14 | 浙江中新电力工程建设有限公司 | Multi-sensor partial playing sound signal phase detection circuit |
| CN112798907B (en) * | 2020-12-18 | 2024-04-16 | 浙江中新电力工程建设有限公司 | Multi-sensor partial discharge sound signal phase detection circuit |
| CN112763864A (en) * | 2020-12-23 | 2021-05-07 | 深圳供电局有限公司 | GIS optical fiber type ultrasonic partial discharge sensor |
| CN112763867A (en) * | 2020-12-23 | 2021-05-07 | 深圳供电局有限公司 | GIS multifrequency section ultrasonic wave partial discharge sensor |
| CN112763862A (en) * | 2020-12-23 | 2021-05-07 | 深圳供电局有限公司 | Built-in ultrasonic wave partial discharge sensor of GIS |
| CN112763864B (en) * | 2020-12-23 | 2023-08-04 | 深圳供电局有限公司 | GIS optical fiber type ultrasonic partial discharge sensor |
| CN112763862B (en) * | 2020-12-23 | 2023-08-08 | 深圳供电局有限公司 | GIS built-in ultrasonic partial discharge sensor |
| CN114325269A (en) * | 2021-12-30 | 2022-04-12 | 深圳供电局有限公司 | Ultrasonic partial discharge sensor structure for superconducting cable |
| CN114325269B (en) * | 2021-12-30 | 2023-07-25 | 深圳供电局有限公司 | Ultrasonic partial discharge sensor structure for superconducting cable |
| CN117347797A (en) * | 2023-09-28 | 2024-01-05 | 中国长江电力股份有限公司 | Ultrasonic array detection device and method for partial discharge |
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