CN104332960B - A kind of intelligent arc light protecting system - Google Patents
A kind of intelligent arc light protecting system Download PDFInfo
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- CN104332960B CN104332960B CN201410606758.XA CN201410606758A CN104332960B CN 104332960 B CN104332960 B CN 104332960B CN 201410606758 A CN201410606758 A CN 201410606758A CN 104332960 B CN104332960 B CN 104332960B
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Abstract
The invention discloses a kind of intelligent arc light protecting system, belong to power transformation, distribution and use electrical domain.The present invention is made up of arc light main control unit and arc light expanding element.Main control unit includes power supply and intake plate, mainboard, communication management plate, man-machine interface board, arc light master control borad, simulation template.Expanding element includes power panel, mainboard, display board, arc light collection plate and the arc light acquisition probe at scene.The actuation time for the arc light protecting system that the present invention is provided is shorter；Arc light passage can be identified plus address code of the address code main control unit in arc optical signal for arc optical signal for expanding element, simplify wiring process, improve the efficiency of site operation；Protection system can recognize that abnormal passage, reduce false alarm rate；Value can flexibly be set by protecting the arc light and electric current of association, and the selective trip avoidance function of arc protection can be achieved after setting by suitably associating.
Description
Technical field
The present invention relates to a kind of intelligent arc light protecting system, belong to power transformation, distribution and use electrical domain.
Background technology
Arc short-circuit is the failure of most serious in power distribution network, the situation in particularly occurring in, inside low-tension switch cabinet.By
Larger in arc resistance, short circuit current flow does not often reach excessively stream, quick-break setting valve, thus is unable to quick acting and disengagement failure.
Electric arc sustained combustion discharges huge energy, so as to cause catastrophic consequence, switch cubicle is seriously burnt.In addition, switch
The arc short-circuit failure of cabinet, cannot often be removed in time, develop into middle pressure bus-bar fault, and its harm is very serious.It hurry up
Speed detects the arc light produced when accident occurs, by arc light discriminatory analysis, quickly cutting off failure, solves the above problems
Best method.
In recent years, for middle voltage bus bar arc light protecting system application it is more and more, its actuation time is short (general<
7ms), far below traditional protection, when arc light event occurs for bus, faulty line can be quickly and effectively cut off, circuit is ensured
Safely and steadly run.However, because arc light number of active lanes is more, wiring is complex, general arc light protecting system can only
One to two sections of buses are protected, when system is in multistage bus run, it is necessary to cover protection system, and arc protection does not have generally more
Selective trip avoidance function, often expands fault coverage, brings unnecessary economic loss.General arc light protecting system,
Switch cubicle Presence Extensions module is installed on all without display, to apply arc optical signal when debugging at the scene, then in distal end
Check whether to detect arc light on main control unit, it is necessary to which many people cooperation, also brings inconvenience to field adjustable.
The content of the invention
For the deficiencies in the prior art, for convenience of design and site operation, system cost is reduced, the present invention is provided
A set of intelligent arc light protecting system, comprising two kinds of units, one kind is arc light main control unit, another is arc light expanding element.
The present invention solves the technical scheme that is used of prior art problem：A kind of arc light protecting system main control unit, intelligence
Channel position can be recognized, selective tripping operation can be realized by relaying configuration, including power panel, mainboard, communication management plate, display
Plate, arc light master control borad, plate, simulation template are outputed, this main control unit uses plug in construction, and the integrated items of each plate are independent
Function, is inserted directly into the main control unit that cabinet constitutes complete set.
Above-mentioned main control unit, the mainboard is made up of MCU, FPGA, Flash, AD sample circuit；The communication management plate by
MCU, communicating circuit composition；The display board includes LCD liquid crystal and man-machine interface board (button and interface circuit) is constituted；The arc
Light master control borad is made up of MCU and FPGA；It is described output plate by respectively output relay group into；The simulation template is passed by voltage x current
Sensor is constituted；The power panel is made up of the power module and intake input module of offer cell operation.
The function of each module of main control unit and signal transmission situation are as follows：
After power network primary equipment voltage, electric current are changed through transformer, analog quantity of the voltage and current signal through main control unit
Plate is transformed into weak electric signal, is input to mainboard, is converted to digital quantity through operational amplifier, A/D converter, then carry out by FPGA
Handle, be transferred to MCU computings and obtain corresponding voltage x current value；
The intake input module of power supply and intake plate receives external switch amount signal, opens and is filtered into signal through mainboard FPGA
Mainboard MCU is sent to after ripple processing；
Mainboard MCU gathers each electrical quantity and arc optical signal, realizes the logic judgment of arc protection；
The operation button of man-machine interface board is directly controlled by mainboard FPGA and MCU, mainboard MCU according to it is all collection come
Signal carry out logical operation, and export LED indication signals, the measured value of various signals, protection act value, fixed value adjusting led to
LCD is crossed to show；
Communication management plate carries out distant place communication by the communication interface of Phototube Coupling, realizes remote measurement, remote signalling, remote control, remote regulating,
And/or realize definite value a distant place adjust and inquire about, Remote protection throw move back；
Arc light master control borad receives arc optical signal, and the FPGA inputted after processing on mainboard, mainboard receives arc optical signal, and to letter
MCU is transmitted further to after number being filtered processing.
Arc protection criterion can be arc light list criterion or the double criterions of arc light and electric current, the latter in described main control unit
The reliability of protection act can be increased.During for arc light list criterion, protection act when main control unit has detected arc optical signal；For
During double criterions, while main control unit detects arc optical signal, judge whether the current signal for simulating template has mutation, if two
Individual condition is all met, protection act.
Described main control unit can Intelligent Recognition arc light channel position, each piece of arc light collection plate can set address, nothing
By rear terminated line how, main control unit can according to the address set by the arc optical signal transmitted according to address sequence number
Arrangement.
Another object of the present invention is used for there is provided a kind of intelligent arc light protecting system arc light protecting system expanding element
The live arc optical signal of detection, and will gather main control unit is sent to after the arc optical signal processing come, including it is power panel, mainboard, aobvious
Show the arc probe of plate, arc light collection plate and scene.Expanding element uses plug in construction, and each plate is integrated every independent
Function, be inserted directly into cabinet constitute complete set unit.
The present invention discloses a kind of arc light protecting system, including arc light main control unit and arc light expanding element.Arc light
Expanding element is connected by plastic optical fiber with arc probe, collection site arc optical signal, and stamp is carried out to the arc optical signal of collection
After processing, arc light main control unit is sent to.Arc light main control unit connects arc light expanding element by optical fiber, receives at expanding element
Arc optical signal after reason, and line renumbering is entered to arc optical signal according to the address code transmitted in information, realize logout, guarantor
Protect the functions such as logical process.
Above-mentioned expanding element, user can be separately provided numbering by display board to each arc light passage, check that arc light is believed
Number state etc.；Arc light collection plate is read arc optical signal with bus mode, entered by arc probe collection site arc optical signal, mainboard
The processing of row stamp, the arc optical signal after stamp is sent；Power panel provides working power for each plate.
The main process of the intelligent arc light protecting system signal transmission is as follows：
Arc light expanding element is connected by plastic optical fiber with arc probe, collection site arc optical signal, to the arc light of collection
Signal is carried out after stamp processing, is sent to arc light main control unit.Arc light main control unit connects arc light expanding element by optical fiber, connects
The arc optical signal after expanding element processing is received, and line renumbering is entered to arc optical signal according to the address code transmitted in information, it is real
The functions such as existing logout, relay protective scheme processing.
Above-mentioned expanding element arc probe is directly installed on busbar room, and the arc light situation of monitoring busbar room passes through plastic light
It is fine that collection signal is sent to arc light collection plate.Collection plate through carrying MCU processing after to arc optical signal increase address code and
Verification, arc light master control borad is sent to by optical fiber interface, main control unit can Intelligent Recognition arc light channel position, no matter terminate afterwards
How is line, and main control unit can arrange the arc optical signal transmitted according to address sequence number according to the address set.Together
When mainboard of the collection plate directly with expanding element interact, make arc optical signal locally can also be by showing mould in expanding element
Block is viewed.
User can also carry out address configuration by display module and guidance panel to arc light collection plate, configure rear arc light
The arc optical signal that collection plate is sent carries address number.Described main control unit can Intelligent Recognition arc light channel position,
Each piece of arc light collection plate can set address, regardless of terminated line afterwards, and main control unit can be incited somebody to action according to the address set
The arc optical signal transmitted is arranged according to address sequence number.
In the intelligent arc light protecting system of above-mentioned kind, expanding element can according to actual needs, flexible increase or less.
Described main control unit arc protection can arbitrarily associate arc light passage and current channel, can arbitrarily set protection
Outlet；Failure protection can arbitrarily associate arc protection and current channel, can also arbitrarily set protection exit, add protection
Flexibility.Rational configuration protection associated volume can realize selective trip avoidance function.
Main control unit is detected after optical-fibre channel disconnecting, and the self-locking arc light associated with the arc optical signal is protected
Shield.The arc light collection plate of expanding element sends an arc optical signal every a time cycle, and main control unit mainboard receives this
The data of collection plate and judge it is normal after, communicate normal counter and add 1, when communicating normal counter continuous several time cycles not
Become, judge the acquisition channel communication abnormality.The mainboard MCU of main control unit is found out from memory field to close with the passage arc optical signal
The arc protection of connection, immediately latch-up protection function.
Above-mentioned expanding element can according to actual needs, flexible increase or less arc light collection plate number, and plate
Position can be with arbitrary disposition.
Above-mentioned expanding element, middle arc light collection plate collection site arc optical signal, passes through optical fiber interface and main control unit arc light
Master control borad is communicated.
Pass through special plastic light between the arc probe and arc light collection plate of above-mentioned expanding element Site Detection arc optical signal
Fibre connection.
The present invention is provided in another intelligent arc light protecting system, above-described arc light main control unit without using arc light master
Plate is controlled, arc light collection plate and arc light acquisition probe is directly used；Probe is collected after arc optical signal, by plastic optical fiber by arc light
Signal is transferred to arc light collection plate, and main control unit mainboard is transferred to after being handled through arc light collection plate MCU.
Expanding element switch cubicle is installed on the spot, and main control unit can be installed on the spot can also group screen installation, guarantee mesolow
The safe operation of bus, is the ideal element for constituting intelligent grid.
Beneficial effects of the present invention：
The arc protection configuration of the main control unit for the arc light protecting system that the present invention is provided is flexible, can arbitrarily associate arc light
Passage and current channel, can arbitrarily set protection exit, add the flexibility of protection.Rational configuration protection associated volume can
To protect multistage bus simultaneously, protection system should not be covered more, system cost is reduced.Also selective trip avoidance function can be realized,
Reduce the loss that large area tripping operation is brought.
The arc light collection plate of the expanding element for the arc light protecting system that the present invention is provided can voluntarily set address code, work as arc
When optical channel number is more, record wire size is eliminated, and correspond to the worry of wiring in sequence, only need to be by arc light collection plate
Output port accesses any receiving port of master control borad, and main control unit can be logical to arc light according to the address code for transmitting collection plate
Road carry out order identification, simplifies wiring process, improves the efficiency of site operation.
The actuation time for the arc light protecting system that the present invention is provided is shorter, occurs when action logic elects arc light as from arc light
It can be controlled to protection exit in 4ms, quickly and accurately disengagement failure bus, effectively prevent accident from spreading.
The arc light protecting system that the present invention is provided protects system energy when transmitting the optical-fibre channel communication abnormality of arc light data
Abnormal passage is enough identified, alarm locking protection associated therewith simultaneously is sent, reduces the situation of false alarm.
The main control unit for the arc light protecting system that the present invention is provided can be used cooperatively with many expanding elements, expanding element
Optical-fibre communications is used between main control unit, effective communication distance is longer, and electrically anti-interference is high.
The arc light action logic of the main control unit for the arc light protecting system that the present invention is provided can be set, and can be selected as arc light bar
Act or select to act when being satisfied by with current condition for arc light when part is met, the latter improves the reliable of arc protection action
Property.
Expanding element switch cubicle of the present invention is installed on the spot, and main control unit can be installed on the spot can also group screen installation, guarantee
The safe operation of middle voltage bus bar, is the ideal element for constituting intelligent grid.
Brief description of the drawings
Fig. 1 is the structured flowchart of main control unit in the present invention.
Fig. 2 is the structured flowchart of expanding element in the present invention.
Fig. 3 is protection internal system wiring diagram of the invention.
Fig. 4 is typical protection scheme schematic diagram of the invention.
Embodiment
Technical scheme is described further by specific embodiment below in conjunction with accompanying drawing.
Embodiment 1
Arc light protecting system of the present invention is made up of a main control unit and several expanding elements.
As shown in figure 1, arc light protecting system main control unit, including power supply and intake plate, mainboard, communication management plate, people
Machine interface board, arc light master control borad, simulation template.Described mainboard is made up of MCU, FPGA, Flash, AD sample circuit etc.；Institute
The communication management plate stated is made up of MCU, communicating circuit；Described man-machine interface board is by LCD liquid crystal and button and interface circuit
Composition；Described arc light master control borad is made up of MCU and FPGA；Described simulation template is made up of voltage-current sensor；Power supply
And intake plate is made up of the power module and intake input module of offer cell operation.
After power network primary equipment voltage, electric current are changed through transformer, analog quantity of the voltage and current signal through main control unit
Plate is transformed into weak electric signal, is input to mainboard, is converted to digital quantity through operational amplifier, A/D converter, then carry out by FPGA
Handle, be transferred to MCU computings and obtain corresponding voltage x current value.
The intake input module of power supply and intake plate receives external switch amount signal (such as circuit-breaker status), opens into letter
Number it is sent to mainboard MCU after mainboard FPGA filtering process；Mainboard MCU gathers each electrical quantity and arc optical signal, realizes that arc light is protected
The logic judgment of shield.
The operation button of man-machine interface board is directly controlled by mainboard FPGA and MCU, mainboard MCU according to it is all collection come
Signal carry out logical operation, and export LED indication signals, the measured value of various signals, protection act value, fixed value adjusting led to
LCD is crossed to show.
Communication management plate can carry out distant place communication by the communication interface of Phototube Coupling, can be achieved remote measurement, remote signalling, remote control,
Remote regulating, and can realize definite value a distant place adjust and inquire about, Remote protection is thrown and the function such as moves back.
Arc light master control borad receives the arc light data transmitted from arc light collection plate, and the data use optical signal transmission,
Strong interference immunity, arc light master control borad carries MCU, receives the arc light sequence number that can be recognized after data corresponding to the data, processing
After directly input mainboard.
As shown in Fig. 2 arc light protecting system expanding element, including power panel, mainboard, man-machine interface board, arc light collection plate
And the arc probe at scene.
Arc probe is directly installed on busbar room, and the arc light situation of monitoring busbar room will gather signal by plastic optical fiber
Arc light collection plate is sent to, arc light collection plate increases address code and school by the MCU processing latter aspects carried to arc optical signal
Test, main control unit arc light master control borad be sent to by optical fiber interface, on the other hand the mainboard directly with expanding element is interacted,
Arc optical signal is set locally to be viewed in expanding element by display module.User can be by man-machine interface board to arc light
Collection plate carries out address configuration, configures the arc optical signal that backarc light collection plate sent and carries address number.
Arc light expanding element can carry out address configuration to each arc light collection plate in the present apparatus, configure rear address date
In the FLASH for being solidificated in expanding element mainboard, power down is not lost.
Light intensity (unit is Lux) on arc probe detection probe end face, when the light intensity being irradiated on the end face is big
When threshold value is acted, arc light collection plate thinks that the test position there occurs arc light.
Expanding element arc light collection plate is connected using plastic optical fiber with arc probe, is monitored in real time on arc optical signal, plate
MCU the arc optical signal received is filtered after processing (filtering time can be set, generally 300~500us), add this block
The address of collection plate and check code, using high speed serialization mode, main control unit arc light master is sent to optical signal by arc optical signal
Control plate；Meanwhile, arc optical signal is transferred to the mainboard of arc light expanding element by parallel bus by collection plate MCU, by showing mould
Block is locally displayed out and records arc optical signal event in expanding element.
Main control unit arc light master control borad is received after the optical signal that collection plate is sended over, and telecommunications is converted into by conversion chip
The address code and check code number being transferred in arc light master control borad MCU, parsing data frame, by totally 30 arcs of 6 ports on master control borad
Optical signal is transferred to the mainboard of main control unit after being combined again according to address code, mainboard receives the arc of all arc light master control borad transmission
Optical signal, numbers to arc optical signal according still further to the address in data, is achieved that the Intelligent Recognition of arc light passage.
Arc light protecting system Intelligent Recognition channel number implementation process of the present invention：
Arc light collection plate can set address number, it is only necessary to sequentially access 5 acquisition probes on each collection plate
To arc light collection plate, then the address of the collection plate is set on expanding element；The optical fiber port of collection plate and master control borad phase
As long as accessing any one interface when even, it is not necessary to access by actual number.Automatic program identification collection plate is transmitted
Arc optical signal address, arc light sequence number is numbered, and eliminates the trouble of wiring.
Realize that multistage bus arc protection and selectivity trip by relaying configuration：
The arc protection number of main control unit is more, with 8 groups of arc protections, and every group of relay protective scheme is independent, can be flexible
The arc optical signal and protective current of configuration association.When arc light occurs, the unexpected increase along with electric current is understood, so this arc protection
System adds the entry condition of a current break, to strengthen the action accuracy of arc protection.Main control unit can be gathered
The three-phase current of most four circuits, every group of arc protection can select to associate any one group or many in this four groups of electric currents
Group.The present invention can be tripped by the electric current and the realization of arc light relevant parameter for configuring arc protection to the selectivity of multistage bus.
In normal work, main control unit can detect that arc light gathers the optical-fibre channel break-make of signal, detect optical-fibre channel
After disconnecting, the self-locking arc protection associated with the arc optical signal.The arc light collection plate of expanding element is sent out per 100us
An arc optical signal is sent, main control unit mainboard is received after the data of the collection plate and judgement normally, is communicated normal counter and is added
1, when communicating, the normal continuous 500us of counter is constant, i.e., continuous 5 data are abnormal, judge the acquisition channel communication abnormality.It is main
The mainboard MCU of control unit finds out the arc protection associated with the passage arc optical signal from memory field, immediately latch-up protection work(
Energy.
The arc light protecting system that the present invention is provided is detected and rapidly can acted outlet after arc optical signal.Expanding element
The frequency acquisition of arc light collection plate is 1KHz, and it is 200us that data, which send interrupt interval, occurs to detect to expanding element from arc light
Arc optical signal, the time is within 300us；Main control unit is detected after arc optical signal, and arc protection is started by the way of taking 2 using 3,
It is that conjunction, i.e. starting protection are exported to have 2 times in the signal of i.e. 3 times collections, and the arc protection of main control unit judges to interrupt for 417us,
It is within 417*3=1251us to start outlet delay；The present invention uses solid-state relay, and action delay only needs to 2ms；So,
Occurs the whole actuation time 1251us+300us+2ms to the outlet of driving relay from arc light<4ms.
Present invention protection internal system wiring, as shown in Figure 3.
Embodiment 2
The typical protection scheme of the present invention, as shown in Figure 4.
Own on three sections of buses of electric current and step down side of main control unit collection tetra- circuits of DL1, DL2, DL5, DL6
The arc optical signal of switch cubicle.Relaying configuration sets as follows：
Arc protection 1 associates all arc optical signals of I section of bus, associates DL1 and DL5 electric current, and protection exit matrix is matched somebody with somebody
It is set to jump DL1 and jumps two outlets of DL5；
Arc protection 2 associates all arc optical signals of II section of bus, associates DL5 and DL6 electric current, and protection exit matrix is matched somebody with somebody
It is set to jump DL5 and jumps two outlets of DL6；
Arc protection 3 associates all arc optical signals of III section of bus, associates DL2 and DL6 electric current, and protection exit matrix is matched somebody with somebody
It is set to jump DL2 and jumps two outlets of DL6；
When II section of I section of bus belt and III section of bus run, DL1, DL5, DL6 are closed.If arc light occurs for III section of bus,
Arc protection 3 is acted, a tripping DL6, has ensured the normal operation of I section and II section bus.
When I section of bus belt, II section of operation, during III section of independent operating, DL1, DL5, DL2 are closed.If arc occurs for II section of bus
Light, then arc protection 2 act, a tripping DL5 has ensured the normal operation of I section and III section bus.
The present invention realizes the selective trip avoidance function of arc protection by the above-mentioned associated configuration method to protection.
Embodiment 3
Main control unit can also be inserted directly into arc light collection plate without using arc light master control borad, be connected by special plastic optical fiber
Arc light acquisition probe is connect, collection site arc optical signal is transferred directly to mainboard, so after the MCU processing inside collection plate
The arc light protecting system of complete set is directly constituted, centre saves the use of expanding element, saved cost.Such a scheme
Selected in the case that arc light points are less at the scene, and distance is relatively near.
Although the present invention is disclosed as above with preferred embodiment, embodiment and accompanying drawing be not for limiting the present invention,
It is any to be familiar with this those skilled in the art, without departing from the spirit and scope of the invention, it can make various changes or retouch from working as, but equally exist
Within protection scope of the present invention.Therefore protection scope of the present invention should be defined with claims hereof protection domain
Be defined.
Claims (8)
1. a kind of arc light protecting system main control unit, Intelligent Recognition channel position, selective jump can be realized by relaying configuration
Lock, it is characterised in that：Including power panel, mainboard, communication management plate, display board, arc light master control borad, output plate, simulation template, this
Unit uses plug in construction, the independent function of the integrated items of each plate, is inserted directly into the master control that cabinet constitutes complete set
Unit；
The mainboard is made up of MCU, FPGA, Flash, AD sample circuit；The communication management plate is made up of MCU, communicating circuit；
The display board is made up of LCD liquid crystal and man-machine interface board；The arc light master control borad is made up of MCU and FPGA；It is described to output plate
By respectively output relay group into；The simulation template is made up of voltage-current sensor；The power panel is by offer cell operation
Power module and intake input module composition；After power network primary equipment voltage, electric current are changed through transformer, voltage and current
Signal is transformed into weak electric signal through the simulation template, is input to the mainboard, is converted to through operational amplifier, A/D converter
Digital quantity, then by FPGA processing, be transferred to MCU computings and obtain corresponding voltage x current value；
The intake input module of the power panel receives external switch amount signal, opens into FPGA filtering of the signal through the mainboard
The MCU of the mainboard is sent to after processing；
The MCU of the mainboard gathers each electrical quantity and arc optical signal, realizes the logic judgment of arc protection；
The operation button of the man-machine interface board is directly controlled by the FPGA and MCU of the mainboard, the MCU roots of the mainboard
The arc optical signal come according to all collections carries out logical operation, and exports LED indication signals, by the measured value of various signals, protection
Working value, fixed value adjusting are come out by the LCD liquid crystal displays；
The communication management plate carries out distant place communication by the communication interface of Phototube Coupling, realizes remote measurement, remote signalling, remote control, remote regulating,
And/or realize definite value a distant place adjust and inquire about, Remote protection throw move back；
The arc light master control borad receives arc optical signal, and the mainboard is inputted after processing, and the FPGA of the mainboard receives arc optical signal,
And the MCU that the mainboard is transmitted further to after processing is filtered to arc optical signal.
2. main control unit according to claim 1, it is characterised in that：The arc light master control borad can be according to the ground set
Location arranges the arc optical signal transmitted according to address sequence number.
3. a kind of arc light protecting system expanding element, for detecting live arc optical signal, and will gather the arc optical signal transmission come
Go out, it is characterised in that：Including power panel, mainboard, display board, arc light collection plate and the arc light acquisition probe at scene, this list
Member uses plug in construction, the independent function of the integrated items of each plate, is inserted directly into the extension list that cabinet constitutes complete set
Member；
The arc light acquisition probe is installed on busbar room, and the arc light collection plate is sent to by signal is gathered by plastic optical fiber,
The MCU processing arc optical signals of the arc light collection plate, increase address code and verification, main control unit is sent to by optical fiber interface
Arc light master control borad；The MCU of the arc light collection plate is directly interacted with the mainboard, and arc optical signal is transferred into the display
Plate.
4. expanding element according to claim 3, it is characterised in that：The arc light collection plate carries address identifier code, and
Can freely it be configured by the display board.
5. a kind of intelligent arc light protecting system, it is characterised in that：If it as the main control unit described in a claim 1 or 2 and
Expanding element composition described in dry claim 3 or 4, expanding element is connected by plastic optical fiber with arc probe, and collection is existing
Field arc optical signal, carries out after stamp processing to the arc optical signal of collection, is sent to main control unit；Main control unit is connected by optical fiber
Expanding element, receives the arc optical signal after expanding element processing, and arc optical signal is carried out according to the address code transmitted in information
Renumber, realize logout, relay protective scheme processing.
6. intelligent arc light protecting system according to claim 5, it is characterised in that：Arc protection arbitrarily associates arc light passage
And current channel, protection exit is arbitrarily set；Failure protection arbitrarily associates arc protection and current channel, and any set is protected out
Mouthful；
Main control unit detects the optical-fibre channel break-make of arc optical signal, detects after optical-fibre channel disconnecting, and self-locking is with being somebody's turn to do
The associated arc protection of arc optical signal；
Arc protection criterion is arc light or arc light and the double criterions of electric current.
7. arc light protecting system according to claim 6, it is characterised in that：Arc optical signal is direct by the arc light collection plate
By data bus transmission to host CPU；
Or, arc optical signal is transferred to the arc light master control borad by the arc light collection plate by optical fiber, then again by the arc
Light master control borad is by data bus transmission to host CPU.
8. a kind of intelligent arc light protecting system, it is characterised in that：If it as the main control unit described in a claim 1 or 2 and
Without using arc light master control borad in expanding element composition described in dry claim 3 or 4, the main control unit, directly using arc
Light collection plate and arc light acquisition probe；Probe is collected after arc optical signal, and arc optical signal is transferred into arc light by plastic optical fiber
Collection plate, main control unit mainboard is transferred to after being handled through arc light collection plate MCU.
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| CN201410606758.XA CN104332960B (en) | 2014-10-31 | 2014-10-31 | A kind of intelligent arc light protecting system |
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| CN201410606758.XA CN104332960B (en) | 2014-10-31 | 2014-10-31 | A kind of intelligent arc light protecting system |
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| CN104332960B true CN104332960B (en) | 2017-09-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071336A (en) * | 2015-08-25 | 2015-11-18 | 江苏省电力公司淮安供电公司 | Device and method for fault alarm and protection of arc light of switch cabinet primary equipment |
| CN105514947A (en) * | 2015-12-01 | 2016-04-20 | 国网辽宁省电力有限公司锦州供电公司 | Protection device and method for monitoring overcurrent and arc light faults of primary equipment of switch cabinet |
| CN106410970B (en) * | 2016-11-11 | 2019-01-25 | 南京南瑞继保电气有限公司 | A kind of arc light protective device and guard method with light intensity signal recording function |
| 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 |
| CN109217462A (en) * | 2017-06-29 | 2019-01-15 | 平高集团有限公司 | A kind of intelligent distribution transformer terminals suitable for rural power grids |
| CN109217325B (en) * | 2017-06-29 | 2021-09-17 | 平高集团有限公司 | Reactive power compensation allocation control system for rural power grid and extension plug-in and terminal thereof |
| CN113253149A (en) * | 2021-05-17 | 2021-08-13 | 西安西电开关电气有限公司 | Monitoring device of high-voltage current limiter supporting edge calculation |
| CN115085160B (en) * | 2022-08-22 | 2022-11-01 | 南京弘特浩电气有限公司 | Arc light protection system |
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| US8576521B2 (en) * | 2011-08-16 | 2013-11-05 | Schneider Electric USA, Inc. | Adaptive light detection for arc mitigation systems |
| CN203135421U (en) * | 2013-03-19 | 2013-08-14 | 山东电力集团公司济南供电公司 | Arc light protecting system |
| 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 |
| CN203691057U (en) * | 2013-12-11 | 2014-07-02 | 天津市禄泰科工贸有限公司 | Arc online monitoring and protecting system |
| CN104092182A (en) * | 2014-06-09 | 2014-10-08 | 安徽金捷光电科技有限公司 | Electric arc light protection device |
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