CN214310764U - Partial discharge on-line monitoring device applied to high-voltage switch cabinet - Google Patents
Partial discharge on-line monitoring device applied to high-voltage switch cabinet Download PDFInfo
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- CN214310764U CN214310764U CN202120356022.7U CN202120356022U CN214310764U CN 214310764 U CN214310764 U CN 214310764U CN 202120356022 U CN202120356022 U CN 202120356022U CN 214310764 U CN214310764 U CN 214310764U
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- 238000004451 qualitative analysis Methods 0.000 abstract description 3
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Abstract
The utility model provides a partial discharge on-line monitoring device applied to a high-voltage switch cabinet, which comprises a partial discharge detection block, wherein the partial discharge detection block is in a cross shape; the detection module comprises two capacitive coupling sensors which are respectively embedded in the vertical ends of the partial discharge detection blocks; the ultrasonic sensor is used for detecting an electromagnetic wave signal generated by partial discharge and is embedded at one end of the horizontal end of the partial discharge detection block; the high-frequency pulse current sensor is used for detecting high-frequency pulse current generated when partial discharge occurs and embedded at the other end of the horizontal end of the partial discharge detection block, and a shielding layer is arranged on the outer side of the high-frequency pulse current sensor; and the optical sensor is used for detecting an optical radiation signal generated by partial discharge and is embedded in the middle of the partial discharge detection block. The utility model discloses combine three kinds of type sensors of sound photoelectricity, carry out qualitative and quantitative analysis to partial discharge, it is convenient that the device loading and unloading is easy, easy operation.
Description
Technical Field
The utility model belongs to the technical field of the monitoring is put in high tension switchgear office, concretely relates to be applied to high tension switchgear's partial discharge on-line monitoring device.
Background
The high-voltage switch cabinet is a switch cabinet which is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and has the functions of on-off, control or protection and the like, and is widely applied to various places such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textiles, industrial and mining enterprises, residential districts, high-rise buildings and the like, so that the reliable operation of the high-voltage switch cabinet is very important. The reason for influencing the normal operation of the switch cabinet is mainly that the high-voltage switch cabinet is influenced by factors such as environment, machinery, heat, electricity and the like for a long time to cause insulation faults, and the local discharge condition of the switch cabinet in the operation process is monitored, so that early warning can be timely given to the insulation abnormal state and the discharge faults of the switch cabinet.
Among the prior art, traditional high tension switchgear partial discharge monitoring time measuring mainly puts the sensor through handheld partial discharge and presses close to the cubical switchboard shell and monitors, wastes time and energy, and monitoring efficiency is lower, has the potential safety hazard and the mechanical shake that artificially leads to can influence the monitoring precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be applied to high tension switchgear's partial discharge on-line monitoring device combines three kinds of type sensors of sound photoelectricity, carries out qualitative and quantitative analysis to partial discharge, and the device loading and unloading is convenient, easy operation.
The utility model provides a following technical scheme:
a partial discharge on-line monitoring device applied to a high-voltage switch cabinet comprises
The partial discharge detection block is in a cross shape;
the detection module comprises two capacitive coupling sensors which are respectively embedded in the vertical ends of the partial discharge detection blocks; the ultrasonic sensor is used for detecting an electromagnetic wave signal generated by partial discharge and is embedded at one end of the horizontal end of the partial discharge detection block; the high-frequency pulse current sensor is used for detecting high-frequency pulse current generated when partial discharge occurs and embedded at the other end of the horizontal end of the partial discharge detection block, and a shielding layer is arranged on the outer side of the high-frequency pulse current sensor; the optical sensor is used for detecting an optical radiation signal generated by partial discharge and is embedded in the middle of the partial discharge detection block, and a camera shooting adjusting mechanism is arranged in the partial discharge detection block and is parallel to the optical sensor;
the control module, the detection piece one side is put in the office is equipped with the fixed block, control module inlays in the fixed block, control module includes the control unit, signal acquisition unit, signal processing unit, the analysis unit is put in the office, divides screen display and wireless transmission module.
Preferentially, the partial discharge detection block is connected with the cabinet body, be equipped with the windowing on the cabinet body, the partial discharge detection block is close to windowing one side and is equipped with the snap ring, the snap ring outside is equipped with the draw-in groove, the partial discharge detection block is located the edge of windowing through the draw-in groove card and is made the partial discharge detection block and cabinet body joint.
Preferentially, the partial discharge detection block is provided with a wave-collecting groove at one side close to the cabinet body, and the optical sensor is embedded in the bottom of the wave-collecting groove.
Preferentially, the detection module is electrically connected with a cable, and the cable penetrates through the partial discharge detection block and then is electrically connected with the signal acquisition unit.
Preferentially, camera shooting adjustment mechanism includes regulating block, miniature camera head, first pivot, gear train, gyro wheel and miniature gear box motor, the regulating block passes and gathers ripples groove and stretch out to the direction of windowing, miniature camera head inlays in the regulating block, the regulating block is kept away from windowing one end and is connected with the perpendicular interlude of first pivot, the gear train is connected to the first pivot other end.
Preferentially, the gear train includes at least one drive gear, the length less than or equal to of gear train gathers ripples groove tank bottom to fixed block and leans on the distance of keeping away from partial discharge and detecting piece one end, and the drive gear of keeping away from the regulating block is connected with the second pivot and connects gyro wheel or micro-gear case motor through the second pivot.
Preferentially, the shielding layer includes the anti-interference layer of at least one deck and two-layer at least antinoise layer, the anti-interference layer is located between the adjacent antinoise layer, the anti-interference layer adopts the glass fiber material, the antinoise layer adopts to inhale the sound cotton for noise absorbing and shock attenuation.
Preferentially, the signal acquisition unit electric connection signal processing unit, the equal electric connection control unit of signal processing unit, partial discharge analysis unit, split screen display, miniature camera, miniature gear box motor and wireless transmission module, the control unit still electric connection has the power supply unit.
Preferably, the signal processing unit includes a signal amplifier, and the wireless transmission module includes an NB-IOT wireless transmission unit.
The utility model has the advantages that:
1. the detection module qualitatively and quantitatively analyzes partial discharge in the high-voltage switch cabinet through acoustic-optical-electrical combination by a capacitive coupling sensor, an ultrasonic sensor, a high-frequency pulse current sensor and an optical sensor, and displays an analysis result through a split screen display screen;
2. the two capacitive coupling sensors are vertically embedded in the partial discharge detection block, the position of partial discharge can be further determined, and the optical sensor can activate the wireless transmission module to transmit partial discharge detection data by utilizing the advantage of higher light speed;
3. the micro-gearbox motor is controlled through the control unit by manually rotating the idler wheel to drive the gear set to rotate, the gear set drives the adjusting block and the micro camera to monitor the running condition of equipment in the switch cabinet, and the camera shooting data is displayed through the split screen display screen;
4. the whole device is convenient to assemble and disassemble and easy to operate.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the cabinet body connection of the present invention;
FIG. 2 is a schematic view of the connection of the detecting mechanism of the present invention;
fig. 3 is a schematic side view connection diagram of the partial discharge detection block of the present invention;
fig. 4 is a schematic connection diagram of the camera adjusting mechanism of the present invention;
fig. 5 is a schematic diagram of the connection of the control modules of the present invention.
Labeled as: 1. the intelligent cabinet comprises a cabinet body, 11 windows, 2 partial discharge detection blocks, 21 fixed blocks, 22 snap rings, 221 clamping grooves, 23 wave gathering grooves, 24 shielding layers, 241 anti-interference layers, 242 anti-noise layers, 3 detection modules, 31 capacitive coupling sensors, 32 ultrasonic sensors, 33 high-frequency pulse current sensors, 34 optical sensors, 4 camera shooting adjusting mechanisms, 41 adjusting blocks, 42 micro cameras, 43 first rotating shafts, 44 gear sets, 45 rollers, 46 micro gearbox motors, 47 second rotating shafts, 5 control modules, 51 control units, 52 signal acquisition units, 53 signal processing units, 54 partial discharge analysis units, 55 partial screen display screens, 56 wireless transmission modules, 57 power supply units and 6 cables.
Detailed Description
As shown in FIGS. 1-3, an on-line partial discharge monitoring device for high-voltage switch cabinet comprises
The partial discharge detection block 2 is characterized in that the partial discharge detection block 2 is in a cross shape, the partial discharge detection block 2 is connected with the cabinet body 1, the cabinet body 1 is provided with a windowing 11, one side, close to the windowing 11, of the partial discharge detection block 2 is provided with a clamping ring 22, a clamping groove 221 is formed in the outer side of the clamping ring 22, and the partial discharge detection block 2 is clamped in the edge of the windowing 11 through the clamping groove 221 so that the partial discharge detection block 2 is clamped with the cabinet body 1.
As shown in fig. 1-3, in the detection module 3, the detection module 3 includes two capacitive coupling sensors 31, and the capacitive coupling sensors 31 are respectively embedded in the vertical ends of the partial discharge detection block 2; an ultrasonic sensor 32, which is used for detecting the ultrasonic sensor 32 of the electromagnetic wave signal generated by the partial discharge and is embedded in one end of the horizontal end of the partial discharge detection block 2; the high-frequency pulse current sensor 33 is used for detecting that high-frequency pulse current generated when partial discharge occurs is embedded at the other end of the horizontal end of the partial discharge detection block 2, a shielding layer 24 is arranged on the outer side of the high-frequency pulse current sensor 33, the shielding layer 24 comprises at least one anti-interference layer 241 and at least two anti-noise layers 242, the anti-interference layer 241 is arranged between the adjacent anti-noise layers 242, the anti-interference layer 241 is made of glass fiber materials, and the anti-noise layers 242 are made of sound-absorbing cotton and used for absorbing noise and shock absorption; optical sensor 34, an optical sensor 34 for detecting the optical radiation signal that partial discharge produced inlays in the middle part that the detection piece 2 was put in the office, the detection piece 2 is put in the office and is close to cabinet 1 one side and be equipped with wave gathering groove 23, optical sensor 34 inlays in wave gathering groove 23 tank bottom, detection module 3 passes through capacitive coupling sensor 31, ultrasonic sensor 32, high-frequency pulse current sensor 33 and optical sensor 34, combine through the reputation, carry out qualitative and quantitative analysis to the partial discharge in the high tension switchgear, and show the analysis result through dividing screen display 55, two capacitive coupling sensor 31 are vertical to be inlayed in the detection piece 2 is put in the office, can further confirm the position of partial discharge, optical sensor 34 can utilize the faster advantage of the velocity of light to activate wireless transmission module 56 and carry out the transmission that the data was put in the office.
As shown in fig. 1-4, a camera adjusting mechanism 4 is disposed in the partial discharge detection block 2 and in parallel with the optical sensor 34, the camera adjusting mechanism 4 includes an adjusting block 41, a micro camera 42, a first rotating shaft 43, a gear set 44, a roller 45 and a micro gear box motor 46, the adjusting block 41 passes through the wave focusing groove 23 and extends out toward the window opening 11, the micro camera 42 is embedded in the adjusting block 41, one end of the adjusting block 41, which is far away from the window opening 11, is vertically inserted and connected with the first rotating shaft 43, the other end of the first rotating shaft 43 is connected with the gear set 44, the gear set 44 includes at least one driving gear, the length of the gear set 44 is less than or equal to the distance from the bottom of the wave focusing groove 23 to one end of the fixed block 21, which is far away from the partial discharge detection block 2, the driving gear, which is far away from the adjusting block 41, is connected with a second rotating shaft 47 and connected with the roller 45 or the micro gear box motor 46 through the second rotating shaft 47; the micro-gear box motor 46 is controlled through the control unit 51 by manually rotating the roller 45, the gear set 44 is driven to rotate, the gear set 44 drives the adjusting block 41 and the micro-camera 42 to monitor the operation condition of equipment in the switch cabinet, and the camera shooting data is displayed through the split screen display screen 55.
As shown in fig. 2-5, a fixed block 21 is disposed on one side of the partial discharge detection block 2, the control module 5 is embedded in the fixed block 21, the control module 5 includes a control unit 51, a signal acquisition unit 52, a signal processing unit 53, a partial discharge analysis unit 54, a split-screen display 55 and a wireless transmission module 56, the detection module 3 is electrically connected to the cable 6, the cable 6 is electrically connected to the signal acquisition unit 52 after passing through the partial discharge detection block 2, the signal acquisition unit 52 is electrically connected to the signal processing unit 53 and the signal processing unit 53, the partial discharge analysis unit 54, the split screen display 55, the miniature camera 42, the miniature gearbox motor 46 and the wireless transmission module 56 are all electrically connected with the control unit 51, the control unit 51 is also electrically connected with the power supply unit 57, the signal processing unit 53 comprises a signal amplifier, and the wireless transmission module 56 comprises an NB-IOT wireless transmission unit.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a be applied to high tension switchgear's partial discharge on-line monitoring device which characterized in that: comprises that
The partial discharge detection block is in a cross shape;
the detection module comprises two capacitive coupling sensors which are respectively embedded in the vertical ends of the partial discharge detection blocks; the ultrasonic sensor is used for detecting an electromagnetic wave signal generated by partial discharge and is embedded at one end of the horizontal end of the partial discharge detection block; the high-frequency pulse current sensor is used for detecting high-frequency pulse current generated when partial discharge occurs and embedded at the other end of the horizontal end of the partial discharge detection block, and a shielding layer is arranged on the outer side of the high-frequency pulse current sensor; the optical sensor is used for detecting an optical radiation signal generated by partial discharge and is embedded in the middle of the partial discharge detection block, and a camera shooting adjusting mechanism is arranged in the partial discharge detection block and is parallel to the optical sensor;
the control module, the detection piece one side is put in the office is equipped with the fixed block, control module inlays in the fixed block, control module includes the control unit, signal acquisition unit, signal processing unit, the analysis unit is put in the office, divides screen display and wireless transmission module.
2. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 1, wherein: the partial discharge detection block is connected with a cabinet body, a window is arranged on the cabinet body, a clamping ring is arranged on one side, close to the window, of the partial discharge detection block, a clamping groove is formed in the outer side of the clamping ring, and the partial discharge detection block is clamped on the window opening edge through the clamping groove so that the partial discharge detection block is clamped with the cabinet body.
3. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 2, wherein: the partial discharge detection block is provided with a wave-gathering groove at one side close to the cabinet body, and the optical sensor is embedded in the bottom of the wave-gathering groove.
4. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 3, wherein: the detection module is electrically connected with a cable, and the cable is electrically connected with the signal acquisition unit after passing through the partial discharge detection block.
5. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 4, wherein: the camera shooting adjusting mechanism comprises an adjusting block, a miniature camera, a first rotating shaft, a gear set, a roller and a miniature gear box motor, wherein the adjusting block penetrates through a wave gathering groove and stretches out towards the windowing direction, the miniature camera is embedded in the adjusting block, one end of the adjusting block, away from the windowing direction, penetrates through the first rotating shaft perpendicularly and is connected with the gear set, and the other end of the first rotating shaft is connected with the gear set.
6. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 5, wherein: the gear train includes at least one drive gear, the length less than or equal to of gear train gathers ripples groove tank bottom to fixed block and leans on the distance of keeping away from the partial discharge and detecting piece one end, and the drive gear of keeping away from the regulating block is connected with the second pivot and connects gyro wheel or micro-gear case motor through the second pivot.
7. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 1, wherein: the shielding layer includes at least one deck anti-interference layer and at least two-layer anti-noise layer, the anti-interference layer is located between the adjacent anti-noise layer, the anti-interference layer adopts the glass fiber material, the anti-noise layer adopts to inhale the sound cotton for noise absorption and shock attenuation.
8. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 5, wherein: the signal acquisition unit electric connection signal processing unit, partial discharge analysis unit, split screen display screen, miniature camera, miniature gear box motor and the equal electric connection control unit of wireless transmission module, control unit still electric connection has the power supply unit.
9. The partial discharge online monitoring device applied to the high-voltage switch cabinet as claimed in claim 8, wherein: the signal processing unit comprises a signal amplifier, and the wireless transmission module comprises an NB-IOT wireless transmission unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356022.7U CN214310764U (en) | 2021-02-06 | 2021-02-06 | Partial discharge on-line monitoring device applied to high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356022.7U CN214310764U (en) | 2021-02-06 | 2021-02-06 | Partial discharge on-line monitoring device applied to high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214310764U true CN214310764U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120356022.7U Expired - Fee Related CN214310764U (en) | 2021-02-06 | 2021-02-06 | Partial discharge on-line monitoring device applied to high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214310764U (en) |
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2021
- 2021-02-06 CN CN202120356022.7U patent/CN214310764U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |