CN104678269A - Condensation alarm detection device for cable discharge of cable trench of transformer substation - Google Patents
Condensation alarm detection device for cable discharge of cable trench of transformer substation Download PDFInfo
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- CN104678269A CN104678269A CN201510116429.1A CN201510116429A CN104678269A CN 104678269 A CN104678269 A CN 104678269A CN 201510116429 A CN201510116429 A CN 201510116429A CN 104678269 A CN104678269 A CN 104678269A
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Abstract
The invention discloses a condensation alarm detection device for cable discharge of a cable trench of a transformer substation. The condensation alarm detection device comprises a barrel body; the condensation alarm detection device is characterized in that a condensation lens is embedded into a lower opening of the barrel body, a sound alarm is embedded into an upper opening of the barrel body, and a photoelectric conversion module is arranged in a cavity of the barrel body and connected with the sound alarm through a lead wire; the center of the condensation lens and the center of the photoelectric conversion module are arranged on one axis; a long-strip-shaped magnetic block is arranged at an upper end of the barrel body and an insulated guide wire penetrates a slide hole of the long-strip-shaped magnetic block. According to the detection device, a principle that arc light during cable short circuit is condensed and converted into an alarm signal is adopted, a cover plate used for isolating the cable trench is adopted at the same time, and the detection device is pulled through magnetic suction force to move along a cable, so that the detection device is simple in structure and easy to implement and can quickly find a cable short circuit position; the cover plate of the cable trench is opened in an accurate position, so that the labor intensity is greatly reduced, the labor efficiency is improved, and the detection device can be specially used for detecting cable faults of the cable trench of the transformer substation.
Description
Technical field
The present invention relates to a kind of improvement of cable local discharge detection device, belong to cable duct of substation cable detection technical field, specifically a kind of cable duct of substation cable discharge optically focused alarm detector.
Background technology
Substation cable is all laid in underground cable ditch, and covers with cover plate.Because situation in cable duct is complicated, cable often breaks down, and during cable line fault tripping operation, operations staff need check power transformation station equipment.If cable fault occurs in transformer station, because cable is in underground cable ditch, covered by heavy cable channel cover plate, operations staff is difficult to observation and puts in place, and adding cable fault, to occur in the probability of station cable ditch less, more easily out in the cold.At present, find Method of Cable Trouble Point and usually adopt manual method, be difficult to realize fast searching, therefore cause and find Method of Cable Trouble Point length consuming time, efficiency is low.
Known by retrieving, in order to solve above technical matters, there is the report about Cable fault examination equipment, as Chinese patent 201210473741.2, disclose " a kind of underground cable inspection and fault locator ", by carrying out the collection of video, temperature, voice signal to cable status, and have laptop computer by network earthward main control computer cable ruuning situation is intuitively provided, localization of fault is implemented when cable breaks down, because the parameter detected is more, so complex structure, operation is also inconvenient; For another example Chinese patent 201410059038.6, discloses one " cable local discharge detection device ", comprises Sasser voltage generation module, signal acquisition module, analysis and Control module, there is the shortcoming of complex structure, inconvenient operation equally.
As everyone knows, transformer station's inner high voltage cable breaks down and is generally short trouble, and produces electric arc, and along with a large amount of luminous energy and heat energy.Because cable duct is by cover plate capping, in it, visible ray is few, and the visible ray that therefore cable fault produces is that the detection that fault occurs provides desirable criterion.
At present, there is not yet the report that the visible ray produced by cable fault judges the equipment of cable fault position.
Summary of the invention
Cable fault position and structure simply, are easily implemented, be exclusively used in the cable duct of substation cable discharge optically focused alarm detector of cable duct of substation Cable fault examination to the object of the present invention is to provide a kind of visible ray produced by cable fault to judge.
In order to reach above object, the technical solution adopted in the present invention is: this cable duct of substation cable discharge optically focused alarm detector, comprise cylindrical shell, it is characterized in that: the end opening of described cylindrical shell is embedded in collector lens, the suitable for reading of cylindrical shell is embedded in voice guard, be provided with photoelectric conversion module in the chamber of cylindrical shell, photoelectric conversion module is connected with voice guard by wire; The center of circle of collector lens and the center of circle of photoelectric conversion module are on an axis.
The present invention is also implemented by following measure: the upper end of described cylindrical shell is provided with strip magnetic patch, penetrates insulation leading line in the slide opening of strip magnetic patch, and the suspension of insulation leading line is fixed on the upside of the middle part of cable duct, from cable channel cover plate base surface 4cm; The slip of strip magnetic patch adopts electromagnetic wand attract strip magnetic patch and pull realization by patrol officer on the upside of cable channel cover plate.
Described photoelectric conversion module, comprises OPT101 chip, and the pin one of OPT101 chip connects 12V direct supply, and the pin two of OPT101 chip and the resistance R1 indirectly in parallel of pin 5,6,7 and electric capacity C4, for the size of regulation output voltage signal; The pin one of OPT101 chip, pin 4 and pin 8 are respectively through electric capacity C1, C3, C2 ground connection; The pin 5 of OPT101 chip is output voltage high level signal Vout, the Vin pin of access voice guard.
Described voice guard, comprises triode T1, relay K 1, hummer S, and the Vin pin of voice guard accesses the base stage of triode T1 by resistance R2, and the emitter of triode T1 is by resistance R3 ground connection, and one end of contact relay K1 simultaneously; The grid of the other end access triode T1 of relay K 1, and connect one end of hummer S simultaneously; Another termination 12V direct supply of hummer S; Triode T1 triggering and conducting, hummer S, power Vcc form conducting loop, and hummer S shouts a shout, after pressing relay K 1, by triode T1 short circuit, signal return.
Beneficial effect of the present invention is: this cable duct of substation cable discharge optically focused alarm detector, because arclight optically focused when have employed cable short circuit is converted to the principle of alerting signal, have employed isolation cable channel cover plate simultaneously, pull pick-up unit along cable moving by magnetic attraction, so structure simply, is easily implemented, can be checked quickly soon and patrol cable location of short circuit, cable channel cover plate is opened in position accurately, thus significantly reduce labor intensity, raise labour efficiency, the detection of cable duct of substation cable fault can be exclusively used in.
Accompanying drawing explanation
Fig. 1 is structure axial of the present invention cross-sectional schematic.
Fig. 2 is photoelectric conversion module circuit theory schematic diagram of the present invention.
Fig. 3 is voice guard circuit theory schematic diagram of the present invention.
In figure: 1, cylindrical shell; 2, collector lens; 3, voice guard; 4, photoelectric conversion module; 5, wire; 6, strip magnetic patch; 7, insulate leading line.
Embodiment
Embodiment
Fig. 1, Fig. 2, Fig. 3 give one embodiment of the present of invention.The present invention is made with reference to Fig. 1, Fig. 2, Fig. 3.This cable duct of substation cable discharge optically focused alarm detector, comprise cylindrical shell 1, it is characterized in that: the end opening of described cylindrical shell 1 is embedded in collector lens 2, the suitable for reading of cylindrical shell 1 is embedded in voice guard 3, be provided with photoelectric conversion module 4 in the chamber of cylindrical shell 1, photoelectric conversion module 4 is connected with voice guard 3 by wire 5; The center of circle of collector lens 2 and the center of circle of photoelectric conversion module 4 are on an axis.When high-tension cable is short-circuited fault, the arclight produced is by collector lens 2 optically focused, and be radiated on photoelectric conversion module 4, through photoelectric conversion module 4, optically focused signal is converted into electric signal, be transferred to voice guard 3 by wire 5 again, voice guard 3 can quote cable short fault location.
As improvement of the present invention: the upper end of described cylindrical shell 1 is provided with strip magnetic patch 6, insulation leading line 7 is penetrated in the slide opening of strip magnetic patch 6, the suspension of insulation leading line 7 is fixed on the upside of the middle part of cable duct, from cable channel cover plate base surface 4cm, do not affect strip magnetic patch 6 and slide along insulation leading line 7; The slip of strip magnetic patch 6 adopts electromagnetic wand attract strip magnetic patch 6 and pull realization by patrol officer on the upside of cable channel cover plate.When cable duct inner cable is short-circuited fault, patrol officer holds electromagnetic wand and attracts strip magnetic patch 6 and pull on the upside of cable channel cover plate, strip magnetic patch 6 is moved along insulation leading line 7, collector lens 2 is driven to move along the top of cable, when moving to short position, arclight through optically focused, change, pass to voice guard 3 and report to the police, after hearing warning, open cable channel cover plate again, carry out localization of fault.
Described photoelectric conversion module 4, comprises OPT101 chip, and the pin one of OPT101 chip connects 12V direct supply, and the pin two of OPT101 chip and the resistance R1 indirectly in parallel of pin 5,6,7 and electric capacity C4, for the size of regulation output voltage signal; The pin one of OPT101 chip, pin 4 and pin 8 are respectively through electric capacity C1, C3, C2 ground connection; The pin 5 of OPT101 chip is output voltage high level signal Vout, the Vin pin of access voice guard 3.
Described voice guard 3, comprises triode T1, relay K 1, hummer S, and the Vin pin of voice guard 3 accesses the base stage of triode T1 by resistance R2, and the emitter of triode T1 is by resistance R3 ground connection, and one end of contact relay K1 simultaneously; The grid of the other end access triode T1 of relay K 1, and connect one end of hummer S simultaneously; Another termination 12V direct supply of hummer S; Triode T1 triggering and conducting, hummer S, power Vcc form conducting loop, and hummer S shouts a shout, after pressing relay K 1, by triode T1 short circuit, signal return.
Claims (4)
1. cable duct of substation cable discharge optically focused alarm detector, comprise cylindrical shell (1), it is characterized in that: the end opening of described cylindrical shell (1) is embedded in collector lens (2), the suitable for reading of cylindrical shell (1) is embedded in voice guard (3), be provided with photoelectric conversion module (4) in the chamber of cylindrical shell (1), photoelectric conversion module (4) is connected with voice guard (3) by wire (5); The center of circle of collector lens (2) and the center of circle of photoelectric conversion module (4) are on an axis.
2. cable duct of substation cable discharge optically focused alarm detector according to claim 1, it is characterized in that: the upper end of described cylindrical shell (1) is provided with strip magnetic patch (6), insulation leading line (7) is penetrated in the slide opening of strip magnetic patch (6), insulation leading line (7) suspension is fixed on the upside of the middle part of cable duct, from cable channel cover plate base surface 4cm; The slip of strip magnetic patch (6) adopts electromagnetic wand attract strip magnetic patch (6) and pull realization by patrol officer on the upside of cable channel cover plate.
3. cable duct of substation cable discharge optically focused alarm detector according to claim 1, it is characterized in that: described photoelectric conversion module (4), comprise OPT101 chip, the pin one of OPT101 chip connects 12V direct supply, the resistance (R1) of the pin two of OPT101 chip and the parallel connection indirectly of pin 5,6,7 and electric capacity (C4); The pin one of OPT101 chip, pin 4 and pin 8 are respectively through electric capacity (C1, C3, C2) ground connection; The pin 5 of OPT101 chip is output voltage high level signal Vout, the Vin pin of access voice guard (3).
4. cable duct of substation cable discharge optically focused alarm detector according to claim 1, it is characterized in that: described voice guard (3), comprise triode (T1), relay (K1) and hummer (S), the Vin pin of voice guard (3) accesses the base stage of triode (T1) by resistance (R2), the emitter of triode (T1) is by resistance (R3) ground connection, and one end of contact relay (K1) simultaneously; The grid of other end access triode (T1) of relay (K1), and connect one end of hummer (S) simultaneously; Another termination 12V direct supply of hummer (S).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510116429.1A CN104678269B (en) | 2015-03-18 | 2015-03-18 | Cable duct of substation cable discharge optically focused alarm detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510116429.1A CN104678269B (en) | 2015-03-18 | 2015-03-18 | Cable duct of substation cable discharge optically focused alarm detector |
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| CN104678269A true CN104678269A (en) | 2015-06-03 |
| CN104678269B CN104678269B (en) | 2017-06-23 |
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Citations (9)
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|---|---|---|---|---|
| JP2000298154A (en) * | 1999-04-14 | 2000-10-24 | Sumitomo Electric Ind Ltd | Device for measuring partial discharge in optical composite power cable |
| US20050134837A1 (en) * | 2003-12-23 | 2005-06-23 | Sarkozi Janos G. | Detection of partial discharge or arcing in wiring via fiber optics |
| CN101221070A (en) * | 2007-01-12 | 2008-07-16 | 株式会社山武 | Flame detection device |
| CN201315480Y (en) * | 2008-12-10 | 2009-09-23 | 杨德林 | Short circuit protective device for indoor cable head |
| CN101552460A (en) * | 2008-12-10 | 2009-10-07 | 杨德林 | Indoor cable head short-circuit protection method |
| CN102998594A (en) * | 2012-11-21 | 2013-03-27 | 河南理工大学 | Underground cable inspection and fault positioning device |
| CN203056456U (en) * | 2013-01-22 | 2013-07-10 | 江西省电力科学研究院 | Power transmission line overhead guide ground wire patrol device |
| CN103795006A (en) * | 2012-10-30 | 2014-05-14 | 国家电网公司 | Damage observation mirror of cable in cable chute |
| CN204536462U (en) * | 2015-03-18 | 2015-08-05 | 国家电网公司 | Cable duct of substation cable discharge optically focused alarm detector |
-
2015
- 2015-03-18 CN CN201510116429.1A patent/CN104678269B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000298154A (en) * | 1999-04-14 | 2000-10-24 | Sumitomo Electric Ind Ltd | Device for measuring partial discharge in optical composite power cable |
| US20050134837A1 (en) * | 2003-12-23 | 2005-06-23 | Sarkozi Janos G. | Detection of partial discharge or arcing in wiring via fiber optics |
| CN101221070A (en) * | 2007-01-12 | 2008-07-16 | 株式会社山武 | Flame detection device |
| CN201315480Y (en) * | 2008-12-10 | 2009-09-23 | 杨德林 | Short circuit protective device for indoor cable head |
| CN101552460A (en) * | 2008-12-10 | 2009-10-07 | 杨德林 | Indoor cable head short-circuit protection method |
| CN103795006A (en) * | 2012-10-30 | 2014-05-14 | 国家电网公司 | Damage observation mirror of cable in cable chute |
| CN102998594A (en) * | 2012-11-21 | 2013-03-27 | 河南理工大学 | Underground cable inspection and fault positioning device |
| CN203056456U (en) * | 2013-01-22 | 2013-07-10 | 江西省电力科学研究院 | Power transmission line overhead guide ground wire patrol device |
| CN204536462U (en) * | 2015-03-18 | 2015-08-05 | 国家电网公司 | Cable duct of substation cable discharge optically focused alarm detector |
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| 赵宗平 等: "局部放电光检测方法的研究", 《大电机技术》 * |
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| CN104678269B (en) | 2017-06-23 |
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