CN109659909A - A kind of arc light protecting device and method - Google Patents
A kind of arc light protecting device and method Download PDFInfo
- Publication number
- CN109659909A CN109659909A CN201811490171.1A CN201811490171A CN109659909A CN 109659909 A CN109659909 A CN 109659909A CN 201811490171 A CN201811490171 A CN 201811490171A CN 109659909 A CN109659909 A CN 109659909A
- Authority
- CN
- China
- Prior art keywords
- arc light
- current
- arc
- unit
- main control
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 238000010891 electric arc Methods 0.000 claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000012546 transfer Methods 0.000 claims abstract description 5
- 230000036632 reaction speed Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
- H02H1/0023—Using arc detectors sensing non electrical parameters, e.g. by optical, pneumatic, thermal or sonic sensors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of arc light protecting devices, including main control unit, and the arc light unit and current unit that are distributed in several switchgears；The signal end of arc light unit and current unit is connected by data line and optical fiber with the signal end of main control unit, and the control signal output of main control unit is also connected with the control signal of breaker；Arc light unit includes electric arc protection main module, electric arc protection supplementary module and arc photosensor, and arc photosensor is set in switchgear；Electric arc protection supplementary module includes electric power management circuit and data transfer circuit, and electric arc protection main module is used to carry out data processing to the electric arc light data of acquisition；Current unit includes current monitoring circuit and overcurrent-overvoltage observation circuit.The present invention is communicated by optical fiber, and reaction speed is fast, and movement is accurate, high degree of automation.
Description
Technical field
The present invention relates to arc protection technical field, especially a kind of arc light protecting device and method.
Background technique
Arc light protective device can be when arc fault occurs for switchgear, and protection operator preserves from, and
And reduce property loss degree.When there is arc light, arc light is broken out with the speed of 300m/s, destroys any object on the way
Matter.As long as not powering off in system, arc light will be always existed.To reduce the harm of arc light to greatest extent, it would be desirable to one
Kind safety, rapidly efficient semiconductor arc light protective device.
In switch cabinet drawer, it is remote that arc light can rapidly reach 3M in 10ms, therefore to utmostly reduce damage
It loses, the time is a most important factor.Arc light protective device export the trip signal time less than 1 ms, even if installation or
Also the safety of operator can be protected when maintenance.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of arc light protecting device and method, the application
One main control unit can protect several independent switchgears simultaneously, therefore, the arc light unit and electric current list of arc light protective device
Member can be distributed in different switchgears, the arc light or current signal that detect are transmitted to main control unit, main control unit is received
Collect these necessary data, exports trip signal according to the actual situation to breaker, communicated by optical fiber, reaction speed
Fastly, movement is accurate, high degree of automation.
The purpose of the present invention is achieved through the following technical solutions:
A kind of arc light protecting device, including main control unit, and the arc light unit and current unit that are distributed in several switchgears；
The signal end of arc light unit and current unit is connected by data line and optical fiber with the signal end of main control unit, main control unit
Control signal output be also connected with the control signal of breaker；Arc light unit includes electric arc protection main module, electric arc
Light protects supplementary module and arc photosensor, and arc photosensor is set in switchgear；Electric arc protection supplementary module includes power supply
Circuit and data transfer circuit are managed, electric arc protection main module is used to carry out data processing to the electric arc light data of acquisition；Electricity
Flowing unit includes current monitoring circuit and overcurrent-overvoltage observation circuit.
Preferably, main control unit includes that 4 quick independent trips, 1 independent alarm bus and 6 conventional relays go out
Mouthful.
A kind of arc protection control method, the method are as follows:
S1, arc light information and current information in switchgear, the current information are obtained by arc light unit and current unit respectively
For present current value and current increment value；
S2, when getting arc light information, when current increment value has not been obtained, then send alarm signal；When getting current increment
Value, when arc light information has not been obtained, then send alarm signal, when simultaneously get arc light information and current increment value when, then to
Breaker exports trip signal.
The beneficial effects of the present invention are: a main control unit of the invention can protect several independent switchgears simultaneously, therefore,
The arc light unit and current unit of arc light protective device can be distributed in different switchgears, the arc light or electricity detected
Stream signal is transmitted to main control unit, and main control unit is collected into these necessary data, exports trip signal according to the actual situation and arrives
Breaker is communicated by optical fiber, and reaction speed is fast, and movement is accurate, high degree of automation.
Detailed description of the invention
Fig. 1 is circuit structure connection block diagram of the invention；
Fig. 2 is the method for the present invention flow diagram；
In figure, 101- main control unit, 102- arc photosensor, 103- electric arc protection main module, 104- current monitoring circuit,
105- overcurrent-overvoltage observation circuit, 106- electric power management circuit, 107- data transfer circuit, 108- breaker.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
A kind of arc light protecting device please refers to shown in attached drawing 1, including main control unit 101, and is distributed in several switchgears
Interior arc light unit and current unit；The signal end of arc light unit and current unit passes through data line and optical fiber and master control list
The signal end of member 101 is connected, and the control signal output of main control unit 101 is also connected with the control signal of breaker 108；Arc
Light unit includes electric arc protection main module 103, electric arc protection supplementary module and arc photosensor 102, arc photosensor 102
In switchgear；Electric arc protection supplementary module includes electric power management circuit 106 and data transfer circuit 107, and arclight is protected
Main module 103 is protected to be used to carry out data processing to the electric arc light data of acquisition；Current unit includes current monitoring circuit 104 and mistake
Flow through pressure observation circuit 105.
Preferably, main control unit 101 includes 4 quick independent trips, 1 independent alarm bus and 6 conventional relays
Outlet.
A kind of arc protection control method please refers to shown in attached drawing 2, the method are as follows:
S1, arc light information and current information in switchgear, the current information are obtained by arc light unit and current unit respectively
For present current value and current increment value；
S2, when getting arc light information, when current increment value has not been obtained, then send alarm signal；When getting current increment
Value, when arc light information has not been obtained, then send alarm signal, when simultaneously get arc light information and current increment value when, then to
Breaker exports trip signal.
It should be noted that electric arc protection main actions are according to two different factors for being failure generation: arc light and electricity
Flow increment.Trip signal is issued when being detected simultaneously by arc light and current increment.Electric arc protection consists of three parts: arclight
Protect main module 103, electric arc protection auxiliary unit and arc photosensor 102.Arc photosensor 102 can be placed in switchgear
Any position, the function of protection subregion can be realized according to the actual physical location of arc photosensor 102, and in electric arc protection
The position that failure occurs is shown on main module 103, this function can reduce the processing time of power-off, and becoming fast recovery of power supply can
Energy.
Data transmission of the present invention between main control unit 101 and arc light unit or current unit is transmitted by optical fiber and data
Line is completed.Optical fiber transmits trigger signal to main control unit.Working power, alarm signal, the transmission of automatic control data message stream
Then completed by data line.Main control unit provides 4 quick 1ms independent trips and alarm bus and 6 conventional relays
Device outlet.
When being attached in system, it is necessary to carefully consider the position of the switch of each the last one current unit of bus.It opens
Off position determines that can this current unit be worked normally by the program of setting.
A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (3)
1. a kind of arc light protecting device, which is characterized in that including main control unit, and the arc light list being distributed in several switchgears
Member and current unit；The signal end of arc light unit and current unit passes through the signal end of data line and optical fiber and main control unit
It is connected, the control signal output of main control unit is also connected with the control signal of breaker；Arc light unit includes that arclight is protected
Main module, electric arc protection supplementary module and arc photosensor are protected, arc photosensor is set in switchgear；Electric arc protection auxiliary
Module includes electric power management circuit and data transfer circuit, and electric arc protection main module is used to carry out the electric arc light data of acquisition
Data processing；Current unit includes current monitoring circuit and overcurrent-overvoltage observation circuit.
2. a kind of arc light protecting device according to claim 1, which is characterized in that main control unit includes 4 quickly independent jumps
Lock, 1 independent alarm bus and 6 conventional relays outlets.
3. a kind of arc protection control method, including weigh 1 described device, which is characterized in that the method are as follows:
S1, arc light information and current information in switchgear, the current information are obtained by arc light unit and current unit respectively
For present current value and current increment value；
S2, when getting arc light information, when current increment value has not been obtained, then send alarm signal；When getting current increment
Value, when arc light information has not been obtained, then send alarm signal, when simultaneously get arc light information and current increment value when, then to
Breaker exports trip signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811490171.1A CN109659909A (en) | 2018-12-06 | 2018-12-06 | A kind of arc light protecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811490171.1A CN109659909A (en) | 2018-12-06 | 2018-12-06 | A kind of arc light protecting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109659909A true CN109659909A (en) | 2019-04-19 |
Family
ID=66112827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811490171.1A Pending CN109659909A (en) | 2018-12-06 | 2018-12-06 | A kind of arc light protecting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109659909A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623967A (en) * | 2012-04-07 | 2012-08-01 | 山东电力研究院 | Medium-low voltage bus electrical arc light protection method and system |
| CN104993461A (en) * | 2015-06-23 | 2015-10-21 | 江苏金智科技股份有限公司 | Relay protection device providing electric arc light protection function |
| KR101579939B1 (en) * | 2015-01-21 | 2015-12-23 | 강창원 | A solar power system with function of monitoring and diagnosing electric fire by detecting overheat and arc |
| CN207719795U (en) * | 2017-12-28 | 2018-08-10 | 中州电气有限公司 | A kind of multi-angle arclight Integrated Protection System |
| CN209472376U (en) * | 2018-12-06 | 2019-10-08 | 安徽凯川电力保护设备有限公司 | A kind of arc light protecting device |
-
2018
- 2018-12-06 CN CN201811490171.1A patent/CN109659909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623967A (en) * | 2012-04-07 | 2012-08-01 | 山东电力研究院 | Medium-low voltage bus electrical arc light protection method and system |
| KR101579939B1 (en) * | 2015-01-21 | 2015-12-23 | 강창원 | A solar power system with function of monitoring and diagnosing electric fire by detecting overheat and arc |
| CN104993461A (en) * | 2015-06-23 | 2015-10-21 | 江苏金智科技股份有限公司 | Relay protection device providing electric arc light protection function |
| CN207719795U (en) * | 2017-12-28 | 2018-08-10 | 中州电气有限公司 | A kind of multi-angle arclight Integrated Protection System |
| CN209472376U (en) * | 2018-12-06 | 2019-10-08 | 安徽凯川电力保护设备有限公司 | A kind of arc light protecting device |
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