CN203658525U - Device for performing electrified detection and diagnosing power equipment defects - Google Patents
Device for performing electrified detection and diagnosing power equipment defects Download PDFInfo
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- CN203658525U CN203658525U CN201320879105.XU CN201320879105U CN203658525U CN 203658525 U CN203658525 U CN 203658525U CN 201320879105 U CN201320879105 U CN 201320879105U CN 203658525 U CN203658525 U CN 203658525U
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
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- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a device for performing electrified detection and diagnosing power equipment defects. The device includes an ultrasonic detector and a host machine; the ultrasonic detector is connected with the host machine through a data line; the ultrasonic detector includes an ultrasonic sensor, a signal processing circuit, a temperature and humidity sensor, a data output interface, a power supplying power source and a housing; the housing includes a receiving opening, a connection piece and a handle; a sound outlet of the receiving opening s fixedly connected with the handle through the connection piece; the output end of the ultrasonic sensor is connected with the input end of the signal processing circuit; the output end of the signal processing circuit is connected with the data output interface; the temperature and humidity sensor is arranged in the housing, and the output end of the temperature and humidity sensor is connected to the data output interface; and the power supplying power source is connected with the signal processing circuit, the ultrasonic sensor and the humidity and temperature sensor respectively. The ultrasonic detector can perform non-contact remote electrified detection, and therefore, the device has the advantage of high detection precision.
Description
Technical field
The utility model relates to a kind of power equipments defect pick-up unit, is specifically related to a kind of device and method of charged diagnosis and detection power equipments defect.
Background technology
Power equipment is after operation a period of time, and some equipment can cause insulation to decline because of a variety of causes, thereby causes bad partial discharge phenomenon.In the time there is shelf depreciation, can affect the apparatus insulated life-span.Concrete, while electric discharge, due to the impact of high-energy electron or acceleration electronics at every turn, particularly long-term shelf depreciation effect, all can cause physical influence and the chemical reaction of various ways, while clashing into bubble outer wall as charging point, just may interrupt the chemical bond of insulation and cracking occurs, destroy the molecular structure of insulation, cause insulation degradation, accelerate insulation damages process, finally cause the generation of electrical equipment fault, cause grid power blackout, thereby bring about great losses to electricity consumption user and electric power enterprise.
In prior art, generally adopt PD meter to detect power equipment whether partial discharge phenomenon occurs, mainly have the following disadvantages: because power equipment operates in high pressure conditions, this kind of mode is a kind of close contact detection mode, sensor need to be pasted to detected position, therefore, there is potential safety hazard, be difficult to effectively promote the use of.
Utility model content
The defect existing for prior art, the utility model provides a kind of device of charged diagnosis and detection power equipments defect, can not contact remote band electro-detection, has advantages of that accuracy of detection is high; In addition, can realize the accurate location of defect and the diagnosis of degradation.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of device of charged diagnosis and detection power equipments defect, comprising: ultrasonic detector and main frame; Described ultrasonic detector is connected by data line with described main frame;
Described ultrasonic detector comprises: ultrasonic sensor, signal processing circuit, wet temperature sensor, data output interface, power supply and shell; Described shell is horn shape, and its inside surface is minute surface, comprises receiving port, web member and handle; The sound mouth diameter of described receiving port is less than into sound mouth diameter, and this sound mouth is fixedly connected with described handle by described web member; Described ultrasonic sensor is fixed to the inside of described web member, described signal processing circuit and described power supply are fixed to the inside of described handle, and, the output terminal of described ultrasonic sensor is connected with the input end of described signal processing circuit, and the output terminal of described signal processing circuit is connected with described data output interface; Described wet temperature sensor is built in described enclosure, and its output terminal is connected to described data output interface; Described power supply is connected with described signal processing circuit, described ultrasonic sensor and described wet temperature sensor respectively.
Preferably, described signal processing circuit is detection analog loopback, sound wave amplifying return circuit and the digital loop of series connection.
Preferably, described sound wave amplifying return circuit output terminal is also connected with audio output interface.
Preferably, described receiving port is the tubaeform cone of 15 degree, and the housing of described receiving port adopts engineering plastics to make; Described web member is fasten aluminium, and one end of this insulated connecting piece and described receiving port are threaded connection.
Preferably, described handle is cylindrical; Surface at described handle is also provided with power switch; Described power switch is electrically connected with described power supply.
Preferably, described power supply is lithium battery.
Preferably, also comprise alignment clamp; Described alignment clamp is fixedly mounted on the intersection area of described receiving port and described web member.
The beneficial effects of the utility model are as follows:
(1) ultrasonic sensor does not need directly to contact tested equipment, is the non-contacting detection mode of one, guarantees testing staff's safety;
(2) whole ultrasonic detector adopts portable construction design, and overall weight is no more than 800 grams, has volume little, lightweight, and directly hand-held uses, and facilitates the partial discharge phenomenon of any terrain environment band electro-detection power equipment.
Accompanying drawing explanation
The device circuit schematic diagram of the charged diagnosis and detection power equipments defect that Fig. 1 provides for the utility model;
The one-piece construction schematic diagram of the ultrasonic detector that Fig. 2 provides for the utility model;
The cut-open view of the receiving port that Fig. 3 provides for the utility model;
The profile diagram of the receiving port that Fig. 4 provides for the utility model;
Fig. 5 is Fig. 3 right view;
Fig. 6 is Fig. 3 left view;
The front section view of the handle that Fig. 7 provides for the utility model;
The back side cut-open view of the handle that Fig. 8 provides for the utility model;
The profile diagram of the handle that Fig. 9 provides for the utility model;
Figure 10 is Fig. 8 right view;
The profile diagram of the alignment clamp that Figure 11 provides for the utility model;
Figure 12 is Figure 10 right view;
Figure 13 is Figure 11 cut-open view;
Wherein, 1---receiving port; 2---web member; 3---handle.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
In conjunction with Fig. 1-Figure 13, the utility model provides a kind of device of charged diagnosis and detection power equipments defect, comprising: ultrasonic detector and main frame; Described ultrasonic detector is connected by data line with described main frame;
Described ultrasonic detector comprises: ultrasonic sensor, signal processing circuit, wet temperature sensor, data output interface, power supply and shell; Described shell is horn shape, and its inside surface is minute surface, comprises receiving port, web member and handle; The sound mouth diameter of described receiving port is less than into sound mouth diameter, and this sound mouth is fixedly connected with described handle by described web member; Described ultrasonic sensor is fixed to the inside of described web member, described signal processing circuit and described power supply are fixed to the inside of described handle, and, the output terminal of described ultrasonic sensor is connected with the input end of described signal processing circuit, and the output terminal of described signal processing circuit is connected with described data output interface; Described wet temperature sensor is built in described enclosure, and its output terminal is connected to described data output interface; Described power supply is connected with described signal processing circuit, described ultrasonic sensor and described wet temperature sensor respectively.
Wherein, signal processing circuit is detection analog loopback, sound wave amplifying return circuit and the digital loop of series connection., carry out analog to digital conversion, filtering and amplification processing for the signal that ultrasonic sensor is collected, and upload to main frame by digital loop.In addition, sound wave amplifying return circuit output terminal is also connected with audio output interface, by audio output interface output audio sound.
Receiving port is the tubaeform cone of 15 degree, can position check point, has improved the precision detecting; The housing of receiving port adopts engineering plastics to make, and as ABS+PC material, can effectively reduce the weight of whole detection probe, improves intensity.And receiving port inside surface adopts minute surface, can improve the voice signal intensity that arrives ultrasonic sensor, improve accuracy of detection.
Web member adopts insulated connecting piece, as fasten aluminium.One end of insulated connecting piece and receiving port can be threaded connection.Ultrasonic sensor adopts Miniature ultrasonic sensor, is built in fine aluminium part components interior, can effectively strengthen antijamming capability.
As shown in Fig. 7-10, handle is cylindrical, conveniently takes and holds with hand.Surface at handle is also provided with power switch; Power switch is electrically connected with power supply.Wherein, power supply is lithium battery.Lithium battery is built in handle inside, is easy to open and changes battery, has advantages of easy to use.
As shown in Figure 11-13, also comprise alignment clamp.Alignment clamp is fixedly mounted on the intersection area of receiving port and insulated connecting piece.
The principle of work that the device of this charged diagnosis and detection power equipments defect detects power equipment partial discharge phenomenon is:
Because power equipment discharge is a complicated gas discharge physical process, there will be a lot of phenomenons, as, in the time that electric discharge occurs, the intermolecular of region of discharge will produce violent shock, in this shock macroscopic view, show as a kind of pressure, because electric discharge is a series of pulse, so consequent pressure wave is also impulse form, contain various frequency components, its medium frequency exceedes the ultrasound wave that is of 20KHz.Gather by the ultrasound wave that power equipment shelf depreciation is produced, this signal by filtering with amplify and process, is passed in main frame, through wave form analysis, diagnosablely go out to be detected power equipment degradation.Integrate and gather, detect, diagnose, help the operations staff of electric company to prevent the generation of electrical equipment fault, reduced power off time, improved the reliability of operation of power networks.Compared with traditional ultra-sonic defect detector, the ultrasonic signal of the characteristic frequency that this device produces while just gathering power equipment shelf depreciation, itself does not launch ultrasonic signal.This device detects distance and reaches 30 meters, can not contact remote band electro-detection, can realize defect in the accurately diagnosis of location and degradation.
As can be seen here, the device of the charged diagnosis and detection power equipments defect that the utility model provides, is mainly used in the Diagnostic Examination And Repair of Electric Power Facilities process in power industry, has the following advantages:
(1) ultrasonic sensor does not need directly to contact tested equipment, is the non-contacting detection mode of one, guarantees testing staff's safety;
(2) whole ultrasonic detector adopts portable construction design, and overall weight is no more than 800 grams, has volume little, lightweight, and directly hand-held uses, and facilitates the partial discharge phenomenon of any terrain environment band electro-detection power equipment.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection domain of the present utility model.
Claims (7)
1. a device for charged diagnosis and detection power equipments defect, is characterized in that, comprising: ultrasonic detector and main frame; Described ultrasonic detector is connected by data line with described main frame;
Described ultrasonic detector comprises: ultrasonic sensor, signal processing circuit, wet temperature sensor, data output interface, power supply and shell; Described shell is horn shape, and its inside surface is minute surface, comprises receiving port, web member and handle; The sound mouth diameter of described receiving port is less than into sound mouth diameter, and this sound mouth is fixedly connected with described handle by described web member; Described ultrasonic sensor is fixed to the inside of described web member, described signal processing circuit and described power supply are fixed to the inside of described handle, and, the output terminal of described ultrasonic sensor is connected with the input end of described signal processing circuit, and the output terminal of described signal processing circuit is connected with described data output interface; Described wet temperature sensor is built in described enclosure, and its output terminal is connected to described data output interface; Described power supply is connected with described signal processing circuit, described ultrasonic sensor and described wet temperature sensor respectively.
2. the device of charged diagnosis and detection power equipments defect according to claim 1, is characterized in that, described signal processing circuit is detection analog loopback, sound wave amplifying return circuit and the digital loop of series connection.
3. the device of charged diagnosis and detection power equipments defect according to claim 2, is characterized in that, described sound wave amplifying return circuit output terminal is also connected with audio output interface.
4. the device of charged diagnosis and detection power equipments defect according to claim 1, is characterized in that, described receiving port is the tubaeform cone of 15 degree, and the housing of described receiving port adopts engineering plastics to make; Described web member is fasten aluminium, and one end of this insulated connecting piece and described receiving port are threaded connection.
5. the device of charged diagnosis and detection power equipments defect according to claim 1, is characterized in that, described handle is cylindrical; Surface at described handle is also provided with power switch; Described power switch is electrically connected with described power supply.
6. the device of charged diagnosis and detection power equipments defect according to claim 1, is characterized in that, described power supply is lithium battery.
7. the device of charged diagnosis and detection power equipments defect according to claim 1, is characterized in that, also comprises alignment clamp; Described alignment clamp is fixedly mounted on the intersection area of described receiving port and described web member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879105.XU CN203658525U (en) | 2013-12-27 | 2013-12-27 | Device for performing electrified detection and diagnosing power equipment defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879105.XU CN203658525U (en) | 2013-12-27 | 2013-12-27 | Device for performing electrified detection and diagnosing power equipment defects |
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| Publication Number | Publication Date |
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| CN203658525U true CN203658525U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320879105.XU Expired - Fee Related CN203658525U (en) | 2013-12-27 | 2013-12-27 | Device for performing electrified detection and diagnosing power equipment defects |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375068A (en) * | 2014-11-25 | 2015-02-25 | 国家电网公司 | Visual ultrasonic quick inspection device used for power transmission and distribution line patrolling |
| CN104749495A (en) * | 2013-12-27 | 2015-07-01 | 国家电网公司 | Device and method for performing electrified detection and diagnosing power equipment defects |
| CN112051493A (en) * | 2020-09-17 | 2020-12-08 | 海南电网有限责任公司琼海供电局 | Hidden danger type identification method and device for power distribution network equipment |
-
2013
- 2013-12-27 CN CN201320879105.XU patent/CN203658525U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749495A (en) * | 2013-12-27 | 2015-07-01 | 国家电网公司 | Device and method for performing electrified detection and diagnosing power equipment defects |
| CN104749495B (en) * | 2013-12-27 | 2018-06-22 | 国家电网公司 | The device and method of live detection and diagnosing electric power defect |
| CN104375068A (en) * | 2014-11-25 | 2015-02-25 | 国家电网公司 | Visual ultrasonic quick inspection device used for power transmission and distribution line patrolling |
| CN112051493A (en) * | 2020-09-17 | 2020-12-08 | 海南电网有限责任公司琼海供电局 | Hidden danger type identification method and device for power distribution network equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141227 |
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| EXPY | Termination of patent right or utility model |