CN105119246B - Arc light protection system - Google Patents
Arc light protection system Download PDFInfo
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- CN105119246B CN105119246B CN201510597058.3A CN201510597058A CN105119246B CN 105119246 B CN105119246 B CN 105119246B CN 201510597058 A CN201510597058 A CN 201510597058A CN 105119246 B CN105119246 B CN 105119246B
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- 230000004224 protection Effects 0.000 title claims abstract description 63
- 230000001681 protective effect Effects 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 230000007613 environmental effect Effects 0.000 claims description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
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- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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Abstract
The invention discloses arc light protection system, arc light protective device is connect with current protection unit and arc light expanding element respectively by interchanger, and arc light expanding element is connect with multiple arc photosensors；The tripping output end of arc light protective device is connect with the breaker of the height pressure side of the first transformer and busbar breaker respectively; the current detecting end of arc light protective device is connect by current line with the first current sensor of the low-pressure side of the first transformer, and the arc light sensor input interface of arc light protective device is connect with arc photosensor；The tripping output port of current protection unit is connect with the breaker of the height pressure side of the second transformer respectively, and the current detecting end of arc light protective device is connect by current line with the second current sensor of the low-pressure side of the second transformer；First low-voltage bus bar is connect by busbar breaker with the second low-voltage bus bar, and arc light protective device is also connect with protection for feed line unit and monitoring of working condition unit.
Description
Technical field
The present invention relates to arc protection fields, more particularly to arc light protection system.
Background technique
In the power system, 35kV and the bus of following voltage class do not install bus protection generally.However, low due in
Press the outlet on bus more, frequent operation, three-phase conductor wire spacing is closer at a distance from the earth, is easy to be endangered by toy
Evil, device fabrication quality is poorer than high-tension apparatus, and apparatus insulated aging and mechanical wear, service condition is severe, system operation conditions
Change, reasons, the probability of failure of middle voltage bus bar such as artificial and operating mistake are more much higher than high pressure, super-pressure bus.But it is long-term
Since, people pay little attention to always the protection of middle voltage bus bar, also do not find advanced reasonable solution, therefore, mostly
Failure on bus is cut off using the back-up protection with larger delay, so that failure is developed, expanded, to cause huge
Huge economic loss.In recent years, mesolow switchgear is seriously burnt due to various reasons, and some even develops into serious
Fire disaster, and main transformer is since the accident damaged by external short circuit rush of current also increases year by year, these distribution accidents
Dealing with or even be extended development improperly is power transmission network accident, results in significant economic losses, has caused the extensive pass of power department
Note.Trace it to its cause is because failing quickly to cut off caused by failure without installing middle voltage bus bar protection mostly.So in order to
Guarantee the safe operation of transformer and bus switchgear, it is dedicated there is an urgent need to configure according to the requirement of rapidity of relay protection
The monarch-type arc light protection system that can protect bus and feeder line simultaneously again of middle voltage bus bar protection.
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 protection systems.
The purpose of the present invention is achieved through the following technical solutions: arc light protection system, including electric arc protection
Device, one or more arc light expanding elements, arc photosensor, current protection unit, protection for feed line unit and monitoring of working condition list
Member, the arc light protective device are connected with current protection unit and one or more arc light expanding elements respectively by interchanger
It connects, the arc light expanding element is connect with multiple arc photosensors.
Further, the tripping output port of the arc light protective device respectively with the high-voltage end of the first transformer and low
The breaker and busbar breaker of pressure side connect, and the current detecting end of the arc light protective device is become by current line with first
First current sensor of the low-pressure side of depressor connects, the arc light sensor input interface of the arc light protective device also with it is multiple
Arc photosensor connection.
Further, the tripping output port of the current protection unit respectively with the high-voltage end and low pressure of the second transformer
The breaker at end connects, and the current detecting end of the arc light protective device passes through current line and the low-pressure side of the second transformer
The connection of second current sensor.
Further, first low-voltage bus bar is connect by busbar breaker with the second low-voltage bus bar, the arclight
Protective device is also connect with protection for feed line unit and monitoring of working condition unit.
Further, the arc light protective device includes casing and internal circuit board, is set on the main panel of the casing
There are liquid crystal display, a variety of LED lights, function button and guide key, it is defeated that the rear panel of the casing is equipped with alternating current
Incoming interface, arc light sensor input interface, tripping output port, clock sync cap, communication interface, monitoring interface, expansion interface
With environmental data input interface；
Further, the LED light includes that power supply indicator, run indicator, synchro light, device refer to extremely
Show lamp, environmental monitoring indicator light, the out-of-limit indicator light of electric current, the out-of-limit indicator light of arc light, tripping indicator light and maintenance indicator light.
Further, the function button includes returning to key F1, upper function pages key F2, next function pages to press
Key F3, main interface key F4 and reset key are returned to.
Further, the guide key includes key on direction, square down button, direction left button, the right key in direction
With confirmation OK key.
Further, the function button and/or guide key are touch key-press, and the liquid crystal display is to touch display
Screen.
Further, the touch key-press and touch display screen together as one.
Further, the monitoring of working condition unit includes Temperature Humidity Sensor, radio temperature sensor, fuel gas sensing
Device, wireless humidity sensor, leakage current test unit and leakage current sensor.
The beneficial effects of the present invention are: the present invention is designed using distributed mode, it is suitable as the protection of mesolow double-bus,
Has flexible attributes of network.Wherein protection for feed line unit, which can be individually formed, minimizes protection system, and separately protected feeder line is to subtract
Minor accident scope of power outage.Feeder unit also can run on centralized monitoring mode, pass through arc light protective device dispatching communication.This hair
Bright electric arc protection uses detection arc light and electric current for input quantity, can individually as overcurrent protection, pure arc protection and arc light and
The double criterion protections of overcurrent.This system have principle is simple, reliable in action rapidly, to primary equipment without particular/special requirement, be adapted to it is each
The advantages of kind method of operation.
Detailed description of the invention
Fig. 1 is the system construction drawing of arc light protection system of the present invention；
Fig. 2 is the front panel schematic diagram of arc light protective device of the present invention；
In figure, 1- casing, 2- liquid crystal display, 3-LED indicator light, 4- function button, 5- guide key, 6- mounting plate.
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.
As shown in Figure 1, arc light protection system is a Real-Time Distributed System, provided for terminal user a variety of flexible
Assembled scheme.Mainly by arc light protective device, one or more arc light expanding element, arc photosensor, current protection unit,
The composition such as protection for feed line unit and monitoring of working condition unit.
Arc light protective device is the core of arc light protection system, is responsible for information taken, the logic analysis, failure of system
Judgement and tripping control, while all expanding elements are managed, Centralized Monitoring can also be carried out to feeder unit.
Protection for feed line unit can acquire 4 road arc lights, 4 road TA current acquisition channels, i.e. maximum can be achieved adjacent 2
The arc light and current protection of feeder line, realize quick disengagement failure.
Arc light expanding element: expansible 16 road arc light acquisition channel.
Current protection unit: expansible 6 road TA current acquisition channel and tripping channel.
Arc sensor: being responsible for detection arc light information, is digital signal by arc light intensity-conversion.
Heretofore described arc light protective device by interchanger respectively with current protection unit and one or more arc
The connection of light expanding element, the arc light expanding element are connect with multiple arc photosensors.
Further, the tripping output port of the arc light protective device respectively with the high-voltage end of the first transformer and low
The breaker and busbar breaker of pressure side connect, and the current detecting end of the arc light protective device is become by current line with first
First current sensor of the low-pressure side of depressor connects, the arc light sensor input interface of the arc light protective device also with it is multiple
Arc photosensor connection.
Further, the tripping output port of the current protection unit respectively with the high-voltage end and low pressure of the second transformer
The breaker at end connects, and the current detecting end of the arc light protective device passes through current line and the low-pressure side of the second transformer
The connection of second current sensor.
Further, first low-voltage bus bar is connect by busbar breaker with the second low-voltage bus bar, the arclight
Protective device is also connect with protection for feed line unit and monitoring of working condition unit.
Further, as shown in Fig. 2, the arc light protective device includes casing 1 and internal circuit board, the casing 1
Main panel be equipped with liquid crystal display 2, a variety of LED lights 3, function button 4 and guide key 5, behind the casing 1
Plate is equipped with alternating current input interface, arc light sensor input interface, tripping output port, clock sync cap, communication interface, prison
Control interface, expansion interface and environmental data input interface；
Further, the LED light 3 includes power supply indicator, run indicator, synchro light, device exception
Indicator light, environmental monitoring indicator light, the out-of-limit indicator light of electric current, the out-of-limit indicator light of arc light, tripping indicator light and maintenance indicator light.
Wherein, green light can be used in power supply indicator, run indicator and synchro light, power supply indicator when having electricity
Bright, run indicator is flashed when having program operation with 2Hz, and synchro light is bright after time synchronization.
Red light can be used in device exception indicator light, the out-of-limit indicator light of electric current, the out-of-limit indicator light of arc light and tripping indicator light, when
Device exception indicator light is bright when device exception, and the out-of-limit indicator light of electric current of more prescribing a time limit when electric current is long is bright, more prescribes a time limit when arc light is long
The out-of-limit indicator light of arc light is bright, and tripping indicator light is bright after device tripping.
Amber light can be used in environmental monitoring indicator light and maintenance indicator light, the environmental monitoring indicator light when environmental monitoring alarm
Bright, when device is set as maintenance, maintenance indicator light is bright.
Further, the function button 4 includes returning to key F1, upper function pages key F2, next function pages
Key F3, main interface key F4 and reset key are returned to.
Further, the guide key 5 includes key on direction, square down button, direction left button, the right key in direction
With confirmation OK key.
The function button 4 and/or guide key 5 are touch key-press, and the liquid crystal display 2 is touch display screen.Into
One step, the touch key-press and touch display screen together as one.
Further, the monitoring of working condition unit includes Temperature Humidity Sensor, radio temperature sensor, fuel gas sensing
Device, wireless humidity sensor, leakage current test unit and leakage current sensor.
The two sides of the front panel are additionally provided with mounting plate 6, and multiple installation fixation holes are offered on the mounting plate 6.
Arc light protective device in the present invention has acquisition, tripping and the signal output of electric current and arc photosensor signal
Ability provides a variety of indicator lights, and the state of arc light protecting device is more intuitively understood convenient for operator.The present invention also provides
Touch display screen and touch key-press support large-size screen monitors to show, and reduce the volume of device, reduce the occupied space of device.The present invention
Also there is external interface abundant, support more functions, the monitoring of visible light and infrared light can be completed at the same time.
Arc light protection system proposed by the invention carries out arc protection to double-bus, in order to reduce fault zone, the
One low-voltage bus bar and the second low-voltage bus bar are limited by busbar breaker.Arc light protective device and current protection unit conduct
Trip unit.Arc light protective device jumps the breaker of the first transformer in the first low-voltage bus bar failure, as the first low pressure mother
When line and the second low-voltage bus bar failure, make breaking failure protection.If it exceeds current ration, when area breaks down, arclight
The busbar breaker of protective device tripping the first low-voltage bus bar and the second low-voltage bus bar.Current protection unit jumps the second transformer
Breaker, while the breaking failure protection as the second low-voltage bus bar.
Arc light alarm is obtained from the alarm relay of arc light protective device, the activation when region is broken down, and system is certainly
Inspection alarm is obtained from arc light protective device alarm relay.
Electric arc protection principle: according to two factors of arc light and current increment, when being detected simultaneously by arc light and current increment
When issue trip signal.When system jam, arc optical signal is converted electric signal by arc photosensor, is assisted by I/O
Unit is transmitted to arc light protective device, and arc light protective device passes through sensed current signal again and reaches initiation value, that is, issues
Trip signal.
The present invention is designed using distributed mode, is suitable as the protection of mesolow double-bus, has flexible attributes of network.
Wherein protection for feed line unit, which can be individually formed, minimizes protection system, and separately protected feeder line is to reduce forced outage range.Feeder line
Unit also can run on centralized monitoring mode, pass through arc light protective device dispatching communication.Electric arc protection of the present invention is using inspection
It surveys arc light and electric current is input quantity, can individually be protected as overcurrent protection, pure arc protection and arc light and the double criterions of overcurrent.This
System have the advantages that principle is simple, reliable in action rapidly, to primary equipment without particular/special requirement, be adapted to the various methods of operation.
Describe a kind of arc light protection system according to the present invention in an illustrative manner above with reference to attached drawing.But this
Field can also not depart from this hair it will be appreciated by the skilled person that for the arc light protection system that aforementioned present invention is proposed
Various improvement are made on the basis of bright content.Therefore, protection scope of the present invention should be by the content of appended claims
It determines.
Claims (1)
1. arc light protection system, it is characterised in that: including arc light protective device, one or more arc light expanding elements, arc
Optical sensor, current protection unit, protection for feed line unit and monitoring of working condition unit, the arc light protective device pass through interchanger
It is connect respectively with current protection unit and one or more arc light expanding elements, the arc light expanding element and multiple arc light sensors
Device connection；
The tripping output port of the arc light protective device breaker with the high-voltage end of the first transformer and low-pressure end respectively
And busbar breaker connection, the current detecting end of the arc light protective device pass through the low-pressure side of current line and the first transformer
The first current sensor connection, the arc light sensor input interface of the arc light protective device also with multiple arc photosensors connect
It connects；
The tripping output port of the current protection unit connects with the breaker of the high-voltage end of the second transformer and low-pressure end respectively
It connects, the second current sense that the current detecting end of the arc light protective device passes through current line and the low-pressure side of the second transformer
Device connection；
First low-voltage bus bar is connect by busbar breaker with the second low-voltage bus bar, and the arc light protective device is also protected with feeder line
Shield unit is connected with monitoring of working condition unit；
The arc light protective device includes casing (1) and internal circuit board, and the main panel of the casing (1) is equipped with liquid crystal
Display screen (2), a variety of LED lights (3), function button (4) and guide key (5), the rear panel of the casing (1), which is equipped with, to be handed over
Galvanic electricity input interface, tripping output port, clock sync cap, communication interface, monitoring interface, expands arc light sensor input interface
Open up interface and environmental data input interface；
The LED light (3) includes power supply indicator, run indicator, synchro light, device exception indicator light, environment
Monitor indicator light, the out-of-limit indicator light of electric current, the out-of-limit indicator light of arc light, tripping indicator light and maintenance indicator light；
The function button (4) includes returning to key F1, upper function pages key F2, next function pages key F3, returning
Main interface key F4 and reset key；
The guide key (5) includes key on direction, square down button, direction left button, the right key in direction and confirmation OK key；
The function button (4) and/or guide key (5) are touch key-press, and the liquid crystal display (2) is touch display screen；
The touch key-press and touch display screen together as one；
The monitoring of working condition unit includes Temperature Humidity Sensor, radio temperature sensor, combustible gas sensor, wireless humidity biography
Sensor, leakage current test unit and leakage current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510597058.3A CN105119246B (en) | 2015-09-18 | 2015-09-18 | Arc light protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510597058.3A CN105119246B (en) | 2015-09-18 | 2015-09-18 | Arc light protection system |
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| CN105119246A CN105119246A (en) | 2015-12-02 |
| CN105119246B true CN105119246B (en) | 2019-06-07 |
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| CN201510597058.3A Active CN105119246B (en) | 2015-09-18 | 2015-09-18 | Arc light protection system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786410A (en) * | 2017-01-09 | 2017-05-31 | 中交航局安装工程有限公司 | A kind of 10kV high-voltage boards arc light temperature linkage protection system |
| CN107425509A (en) * | 2017-08-04 | 2017-12-01 | 昆山帝森克罗德光电技术有限公司 | A kind of arc light protecting device |
| CN110518553A (en) * | 2019-08-21 | 2019-11-29 | 南京瑞德力电气科技有限公司 | A kind of bus feeder line arc light protecting system |
| CN114597861B (en) * | 2022-03-04 | 2022-11-18 | 江苏南能电气有限公司 | Photovoltaic box transformer arc light protection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202513561U (en) * | 2012-04-28 | 2012-10-31 | 四川省电力公司自贡电业局 | Arc light protection system of high-voltage switch cabinet |
| 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 |
| CN204144926U (en) * | 2014-09-25 | 2015-02-04 | 湖北瑞力电气有限公司 | A kind of arc light protective device |
| CN103208786B (en) * | 2013-04-16 | 2015-06-17 | 国家电网公司 | Rapid protection system of electric power substation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080180866A1 (en) * | 2007-01-29 | 2008-07-31 | Honor Tone, Ltd. | Combined arc fault circuit interrupter and leakage current detector interrupter |
-
2015
- 2015-09-18 CN CN201510597058.3A patent/CN105119246B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202513561U (en) * | 2012-04-28 | 2012-10-31 | 四川省电力公司自贡电业局 | Arc light protection system of high-voltage switch cabinet |
| CN103208786B (en) * | 2013-04-16 | 2015-06-17 | 国家电网公司 | Rapid protection system of electric power substation |
| 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 |
| CN204144926U (en) * | 2014-09-25 | 2015-02-04 | 湖北瑞力电气有限公司 | A kind of arc light protective device |
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| CN105119246A (en) | 2015-12-02 |
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Effective date of registration: 20230911 Address after: No. 38 Tianyi Street, Chengdu High tech Zone, Chengdu, Sichuan, 610095 Patentee after: CHENGDU GONGBAILI AUTOMATION EQUIPMENT Co.,Ltd. Address before: No. 38 Tianyi Street, Chengdu, Sichuan, 610041 Patentee before: CHENGDU BILSUM SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Arc light protection system Granted publication date: 20190607 Pledgee: Agricultural Bank of China Limited by Share Ltd. Chengdu high tech Industrial Development Zone Branch Pledgor: CHENGDU GONGBAILI AUTOMATION EQUIPMENT Co.,Ltd. Registration number: Y2023510000200 |