CN104377665A - Arc light protective device - Google Patents
Arc light protective device Download PDFInfo
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- CN104377665A CN104377665A CN201410672203.5A CN201410672203A CN104377665A CN 104377665 A CN104377665 A CN 104377665A CN 201410672203 A CN201410672203 A CN 201410672203A CN 104377665 A CN104377665 A CN 104377665A
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Abstract
The invention discloses an arc light protective device, and belongs to the field of relay protection of power distribution systems in the electric power industry. The arc light protective device comprises a master control unit, an arc light expanding unit, a current protection unit, an arc light protection unit, a feeder line protection unit, an arc light sensor, a communication cable and a working condition unit. The working condition unit mainly comprises six sub-units which include the SF6 detection unit, the smog detection unit, the combustible gas detection unit, the node temperature detection unit, the environment temperature detection unit and the environment humidity detection unit. The arc light protective device has the advantages that due to the specific working condition unit, faults in the whole arc light protective device can be fed back to the master control unit in time, the early warning can be carried out on accidents, caused by the reasons such as temperature rising, insulating, arcing and an overcurrent, of a switch cabinet, invisible arc light is effectively and timely judged accordingly, and powerful guarantees are provided for safe and reliable running of an electric power system.
Description
Technical field
The present invention relates to power industry distribution system relay protection field, be specifically related to a kind of arc light protective device.
Background technology
Electric arc is a kind of phenomenon occurred in discharge process; voltage between 2 o'clock will occur when exceeding its power frequency dielectric strength limit; when suitable condition occurs, a plasma that carry electric current produces, and just can disappear until the proterctive equipment of mains side disconnects.
Arc light protection system can when switch cubicle generation arc fault, and protection operating personnel preserve from, and reduce property loss degree.When there is arc light, arc light breaks out with the speed of 300m/s, destroys any material in way.As long as not power-off in system, arc light will exist always.Want the harm reducing arc light to greatest extent, we need a kind of safe and effective semi-conductor electricity arc light protecting system.
As long as the energy that the voltage at two ends provides is enough to compensate thermal losses and maintain suitable temperature conditions, electric arc will continue to occur.If electric arc is elongated and cools, maintain its necessary condition disappearance and then extinguish.Similarly, if circuit two-phase is short-circuited also can produce electric arc, arc light protective device shortage in the market judges timely and effectively to the arc light of recessiveness.
Summary of the invention
The object of the present invention is to provide a kind of arc light protective device; failure problems in whole arc protection device can be fed back to hollow unit by distinctive operating mode unit in time in time; early warning is carried out to the accident that switch cubicle causes because of reasons such as temperature rise, insulation, arcing, overcurrents; thus the arc light of stealth is judged timely and effectively, provide sound assurance for power system security runs reliably.
Technical solution problem of the present invention adopts following technical scheme:
A kind of arc light protective device is provided, it comprises main control unit, arc light expanding element, current protection unit, arc protection unit, protection for feed line unit, arclight transducer, telecommunication cable and operating mode unit, it is characterized in that: described operating mode unit mainly comprises 6 subelements, SF6 detecting unit respectively, Smoke Detection unit, fuel gas detecting unit, node temperature detecting unit, ambient temperature detecting unit and ambient humidity detecting unit, the process that each unit achieves various types of signal is respectively measured, to be connected with main control unit by unified communication bus interface and to realize reliable communication, described main control unit control realization shows various measurement parameter and equipment running status in real time, and alarm signal or trip signal is sent when needs.
As preferred embodiment; described arc protection unit and described current protection unit are protected as arc light and the dual criterion of overcurrent; each zone current, arc light and time definite value can independently be adjusted; the throwing carrying out Control protection by arranging the soft pressing plate of protection is respectively moved back, namely when arc light protective device meet simultaneously electric current out-of-limit and arclight is out-of-limit time just perform the mode of tripping assigned switch.
As preferred embodiment, the hardware failure of described arc light protective device (comprise definite value to make mistakes, make mistakes by definite value area code; internal component is abnormal; module communication is abnormal) time, the LCD display panel of device can show fault message, exports with timer alarm relay is closed.
As preferred embodiment, containing environment temperature sensor, node temperature transducer, Smoke Sensor, leak current detection sensor, SF6 transducer in described operating mode unit, described transducer correspondence is arranged in 6 subelements of operating mode unit.
The present invention is compared with existing arc light protective device technology; its beneficial effect is: the failure problems in whole arc protection device can be fed back to hollow unit by distinctive operating mode unit in time in time; early warning is carried out to the accident that switch cubicle causes because of reasons such as temperature rise, insulation, arcing, overcurrents; thus the arc light of stealth is judged timely and effectively, provide sound assurance for power system security runs reliably.
Accompanying drawing explanation
Figure 1 shows that schematic diagram of the present invention.
Embodiment
The present invention is specifically described by specific embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of arc light protective device, it comprises main control unit, arc light expanding element, current protection unit, arc protection unit, protection for feed line unit, arclight transducer, telecommunication cable and operating mode unit, operating mode unit mainly comprises 6 subelements, SF6 detecting unit respectively, Smoke Detection unit, fuel gas detecting unit, node temperature detecting unit, ambient temperature detecting unit and ambient humidity detecting unit, the process that each unit achieves various types of signal is respectively measured, to be connected with main control unit by unified communication bus interface and to realize reliable communication, described main control unit control realization shows various measurement parameter and equipment running status in real time, and alarm signal or trip signal is sent when needs.
Arc protection unit and described current protection unit are protected as arc light and the dual criterion of overcurrent; each zone current, arc light and time definite value can independently be adjusted; the throwing carrying out Control protection by arranging the soft pressing plate of protection is respectively moved back, namely when arc light protective device meet simultaneously electric current out-of-limit and arclight is out-of-limit time just perform the mode of tripping assigned switch.
Time the hardware failure of arc light protective device (comprise definite value to make mistakes, definite value area code is made mistakes, and internal component is abnormal, and module communication is abnormal), the LCD display panel of device can show fault message, exports with timer alarm relay is closed.
Containing environment temperature sensor, node temperature transducer, Smoke Sensor, leak current detection sensor, SF6 transducer in operating mode unit, described transducer correspondence is arranged in 6 subelements of operating mode unit.
The present invention is in order to realize before electric equipment breaks down, just failure condition grasped to some extent and make respective handling in time, avoid the generation of fault, real-time monitoring is carried out to the parameters of enclosed type electrical equipment, arc photosensor is installed in closed equipment, node temperature transducer, environment humidity sensor, SF6 gas sensor, leak current detection sensor and Smoke Detection transducer.To be connected with main control unit by unified communication bus interface and to realize reliable communication, finally showing various measurement parameter and equipment running status in real time by main control unit control realization, and send alarm signal or trip signal when needs.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (4)
1. an arc light protective device, it comprises main control unit, arc light expanding element, current protection unit, arc protection unit, protection for feed line unit, arclight transducer, telecommunication cable and operating mode unit, it is characterized in that: described operating mode unit mainly comprises 6 subelements, SF6 detecting unit respectively, Smoke Detection unit, fuel gas detecting unit, node temperature detecting unit, ambient temperature detecting unit and ambient humidity detecting unit, the process that each unit achieves various types of signal is respectively measured, to be connected with main control unit by unified communication bus interface and to realize reliable communication, described main control unit control realization shows various measurement parameter and equipment running status in real time, and alarm signal or trip signal is sent when needs.
2. a kind of arc light protective device according to claim 1; it is characterized in that: described arc protection unit and described current protection unit are protected as arc light and the dual criterion of overcurrent; each zone current, arc light and time definite value can independently be adjusted; the throwing carrying out Control protection by arranging the soft pressing plate of protection is respectively moved back, namely when arc light protective device meet simultaneously electric current out-of-limit and arclight is out-of-limit time just perform the mode of tripping assigned switch.
3. a kind of arc light protective device according to claim 1; it is characterized in that: the hardware failure of described arc light protective device (comprises definite value to make mistakes; definite value area code is made mistakes; internal component is abnormal; module communication is abnormal) time; the LCD display panel of device can show fault message, exports with timer alarm relay is closed.
4. a kind of arc light protective device according to claim 1; it is characterized in that: containing environment temperature sensor, node temperature transducer, Smoke Sensor, leak current detection sensor, SF6 transducer in described operating mode unit, described transducer correspondence is arranged in 6 subelements of operating mode unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672203.5A CN104377665A (en) | 2014-11-22 | 2014-11-22 | Arc light protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672203.5A CN104377665A (en) | 2014-11-22 | 2014-11-22 | Arc light protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104377665A true CN104377665A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410672203.5A Pending CN104377665A (en) | 2014-11-22 | 2014-11-22 | Arc light protective device |
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| Country | Link |
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| CN (1) | CN104377665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185054A (en) * | 2020-09-30 | 2021-01-05 | 中国南方电网有限责任公司超高压输电公司梧州局 | Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5933308A (en) * | 1997-11-19 | 1999-08-03 | Square D Company | Arcing fault protection system for a switchgear enclosure |
| CN101663803A (en) * | 2007-03-16 | 2010-03-03 | Abb技术有限公司 | Compact secondary substation comprising a fault protection system, a method for fault protection in a compact secondary substation, and a control unit for performing the method |
| CN203406527U (en) * | 2013-06-25 | 2014-01-22 | 郭博文 | Safe high-voltage switch cabinet for power transmission and transformation |
| CN203589714U (en) * | 2013-11-26 | 2014-05-07 | 成都工百利自动化设备有限公司 | Feeder-line-type electric arc light protection device |
| CN203589715U (en) * | 2013-11-26 | 2014-05-07 | 成都比善科技开发有限公司 | Master-control-type arc light protection system |
-
2014
- 2014-11-22 CN CN201410672203.5A patent/CN104377665A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5933308A (en) * | 1997-11-19 | 1999-08-03 | Square D Company | Arcing fault protection system for a switchgear enclosure |
| CN101663803A (en) * | 2007-03-16 | 2010-03-03 | Abb技术有限公司 | Compact secondary substation comprising a fault protection system, a method for fault protection in a compact secondary substation, and a control unit for performing the method |
| CN203406527U (en) * | 2013-06-25 | 2014-01-22 | 郭博文 | Safe high-voltage switch cabinet for power transmission and transformation |
| CN203589714U (en) * | 2013-11-26 | 2014-05-07 | 成都工百利自动化设备有限公司 | Feeder-line-type electric arc light protection device |
| CN203589715U (en) * | 2013-11-26 | 2014-05-07 | 成都比善科技开发有限公司 | Master-control-type arc light protection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185054A (en) * | 2020-09-30 | 2021-01-05 | 中国南方电网有限责任公司超高压输电公司梧州局 | Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system |
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Application publication date: 20150225 |
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