CN112924836A - Flexible partial discharge detection sensor device - Google Patents
Flexible partial discharge detection sensor device Download PDFInfo
- Publication number
- CN112924836A CN112924836A CN202110463994.0A CN202110463994A CN112924836A CN 112924836 A CN112924836 A CN 112924836A CN 202110463994 A CN202110463994 A CN 202110463994A CN 112924836 A CN112924836 A CN 112924836A
- Authority
- CN
- China
- Prior art keywords
- partial discharge
- coaxial cable
- silica gel
- discharge detection
- magnetic core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a flexible partial discharge detection sensor device and relates to the field of cable partial discharge detection. The device includes flexible magnetic core, silica gel protective sheath, coupling coil, coaxial cable, BNC connects, goes up buckle and lower buckle. The invention can effectively measure the partial discharge signal in the cable.
Description
Technical Field
The invention relates to the technical field of electrical engineering, in particular to a flexible partial discharge detection sensor device.
Background
The partial discharge can cause serious damage to the insulation of electrical equipment, and is mainly reflected in the damage of factors such as partial heat generated by discharge, impact of charged particles, chemical active products, rays and the like to an insulating material. Insulation accidents have a great impact on electrical equipment, so that the safe operation and safe maintenance of power cables are increasingly emphasized by electrical power systems. The partial discharge detection of the cable is one of effective methods for finding latent defects and hidden dangers of the cable, and is also an important measure for the operation and maintenance of the existing power cable. At present, a general partial discharge detection sensor generally adopts high-frequency CT (high frequency computed tomography), HFCT for short, but the existing HFCT generally has the characteristics of heavy weight, large volume, easiness in damage after falling and the like, and particularly, the heavy sensor is very difficult to install on the occasion that the diameter of an inner hole of the HFCT is required to be larger than 15cm in an installation environment, so that the working efficiency of field operators is greatly reduced. At present, a sensor which is light, high in sensitivity and convenient to install is urgently needed in the market to meet the requirements of field installation and use.
Disclosure of Invention
The invention aims to provide a partial discharge detection sensor device which is light, high in sensitivity and convenient to install, and the working efficiency of field personnel is improved.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a flexible partial discharge detection sensor device comprises a flexible magnetic core, a silica gel protective sleeve, a coupling coil, a coaxial cable, a BNC connector, an upper buckle and a lower buckle;
the flexible magnetic core is cuboid magnetic rubber, the length is 600mm, the width is 30mm, and the thickness is 2 mm;
the silica gel protective sleeve is a silica gel protective sleeve with a hollow structure, and the flexible magnetic core is wrapped inside the silica gel protective sleeve;
the coupling coil is an enameled wire with the diameter of 0.2mm, the coupling coil is uniformly wound outside the flexible magnetic core, and the winding number is 5;
the coaxial cable is a coaxial line with 50 omega impedance, one end of the coaxial cable is connected with the coupling coil, and the other end of the coaxial cable is connected with the BNC connector;
the upper buckle and the lower buckle are metal connection buckles, and can be connected and disconnected through manual operation.
Due to the adoption of the technical scheme provided by the invention, compared with the prior art, the invention has the following beneficial effects:
1. the invention has simple structure and convenient operation, and improves the working efficiency of detection personnel.
2. The invention has light weight and convenient installation.
3. The invention has flexible characteristic, and can meet more field installation environments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Reference numerals in the drawings: 1. flexible magnetic core, 2, silica gel protective sheath, 3, coaxial cable, 4, BNC connect, 5, coupling coil, 6, go up the buckle, 7, lower buckle.
FIG. 2 is a schematic diagram of an example of the application of the present invention.
Reference numbers in the figures: 1. the power cable, 2, flexible partial discharge detection sensor, 21, buckle, 22, coaxial cable, 3, partial discharge detecting instrument.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the invention.
As shown in fig. 1, a flexible partial discharge detection sensor device comprises a flexible magnetic core (1), a silica gel protective sleeve (2), a coupling coil (5), a coaxial cable (3), a BNC connector (4), an upper buckle (6) and a lower buckle (7);
the flexible magnetic core (1) is cuboid magnetic rubber, the length is 600mm, the width is 30mm, and the thickness is 2 mm;
the silica gel protective sleeve (2) is a silica gel protective sleeve with a hollow structure, and the flexible magnetic core (1) is wrapped inside the silica gel protective sleeve;
the coupling coil (5) is an enameled wire with the diameter of 0.2mm, the coupling coil (5) is uniformly wound outside the flexible magnetic core (1), and the winding number is 5;
the coaxial cable (3) is a coaxial cable with 50 omega impedance, one end of the coaxial cable (3) is connected with the coupling coil (5), and the other end of the coaxial cable is connected with the BNC connector (4);
the upper buckle (6) and the lower buckle (7) are metal connection buckles, and the upper buckle (6) and the lower buckle (7) can be connected and disconnected through manual operation.
In the embodiment, as shown in fig. 2, the installation manner of the embodiment is as follows: the flexible partial discharge detection sensor (2) is installed on the power cable (1) after the buckle (21) is opened, and the coaxial cable (22) is connected into the partial discharge detection instrument (3) after the buckle (21) is closed.
In this embodiment, as shown in fig. 2, the embodiment is used as follows: the flexible partial discharge detection sensor (2) extracts partial discharge signals in the power cable (1) and sends the signals to the partial discharge detection instrument (3) for analysis and judgment.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention can be smoothly implemented by those of ordinary skill in the art as illustrated in the drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any equivalent changes, modifications, and evolutions made to the above embodiments according to the actual techniques of the present invention are still within the scope of the technical solutions of the present invention.
Claims (1)
1. A flexible partial discharge detection sensor device comprises a flexible magnetic core (1), a silica gel protective sleeve (2), a coupling coil (5), a coaxial cable (3), a BNC connector (4), an upper buckle (6) and a lower buckle (7);
the flexible magnetic core (1) is cuboid magnetic rubber, the length is 600mm, the width is 30mm, and the thickness is 2 mm;
the silica gel protective sleeve (2) is a silica gel protective sleeve with a hollow structure, and the flexible magnetic core (1) is wrapped inside the silica gel protective sleeve;
the coupling coil (5) is an enameled wire with the diameter of 0.2mm, the coupling coil (5) is uniformly wound outside the flexible magnetic core (1), and the winding number is 5;
the coaxial cable (3) is a coaxial cable with 50 omega impedance, one end of the coaxial cable (3) is connected with the coupling coil (5), and the other end of the coaxial cable is connected with the BNC connector (4);
the upper buckle (6) and the lower buckle (7) are metal connection buckles, and the upper buckle (6) and the lower buckle (7) can be connected and disconnected through manual operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110463994.0A CN112924836A (en) | 2021-04-28 | 2021-04-28 | Flexible partial discharge detection sensor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110463994.0A CN112924836A (en) | 2021-04-28 | 2021-04-28 | Flexible partial discharge detection sensor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112924836A true CN112924836A (en) | 2021-06-08 |
Family
ID=76174749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110463994.0A Pending CN112924836A (en) | 2021-04-28 | 2021-04-28 | Flexible partial discharge detection sensor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112924836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092471A (en) * | 2023-01-12 | 2023-11-21 | 特变电工山东鲁能泰山电缆有限公司 | Partial discharge sensing device and power failure detection system |
-
2021
- 2021-04-28 CN CN202110463994.0A patent/CN112924836A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092471A (en) * | 2023-01-12 | 2023-11-21 | 特变电工山东鲁能泰山电缆有限公司 | Partial discharge sensing device and power failure detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205426977U (en) | Measurement system that anti strong electromagnetic radiation disturbed | |
| CN102436897B (en) | Flexible Rogowski coil used for detecting direct-current system short-circuit current and method for designing same | |
| CN202995018U (en) | Calibrating device of partial discharge detecting device | |
| CN107831410B (en) | Capacitive sleeve end screen signal detection device | |
| CN103487728B (en) | Measure narrow-band electromagnetic wave signal coupling process and the detection system of GIS partial discharge | |
| CN210323262U (en) | Detection device is put in built-in metal forming office | |
| CN112924836A (en) | Flexible partial discharge detection sensor device | |
| CN105806467A (en) | High-voltage shunt reactor iron core vibration measurement device and measurement method | |
| CN214750666U (en) | Flexible partial discharge detection sensor device | |
| CN211402430U (en) | 220KV current transformer bushing end screen signal pickup device | |
| CN108614196A (en) | A kind of high-voltage cable that can detect electric discharge automatically | |
| CN106442634A (en) | Coaxial testing device-based field sensitive type electromagnetic pulse protection material testing method | |
| CN209417207U (en) | A kind of probing bar type high frequency antenna sensor for partial discharge detection | |
| CN101414495B (en) | Composite power cable | |
| CN202916387U (en) | Wire cable dielectric strength test device | |
| CN106443287A (en) | Coaxial device for testing property of field-sensitive electromagnetic pulse protection material | |
| CN210465583U (en) | Sensor for submarine cable fault monitoring | |
| CN112748319A (en) | Non-closed partial discharge detection sensor device | |
| CN203249986U (en) | Broken line positioning device with high precision and low noise for wires and cables | |
| CN108469579B (en) | High-voltage testing terminal for external conical sleeve of switch cabinet | |
| CN104833868A (en) | High signal-to-noise ratio pressure wave propagation model cable space charge test system | |
| CN201444171U (en) | Wall bushing mounting voltage transducer | |
| CN204882729U (en) | High SNR pressure wave method model cable space charge test system | |
| CN219435600U (en) | Double-shielding coaxial cable | |
| CN113835040B (en) | Post insulator detection device and method based on Fabry-Perot interference principle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |