CN206804785U - A kind of arclight fault detection system - Google Patents
A kind of arclight fault detection system Download PDFInfo
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- CN206804785U CN206804785U CN201720715223.5U CN201720715223U CN206804785U CN 206804785 U CN206804785 U CN 206804785U CN 201720715223 U CN201720715223 U CN 201720715223U CN 206804785 U CN206804785 U CN 206804785U
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- arc light
- optical branching
- branching device
- protecting device
- optical
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- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 41
- 239000000523 sample Substances 0.000 claims abstract description 16
- 239000013307 optical fiber Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
A kind of arclight fault detection system, including arc light protecting device and multiple arc light acquisition probes are the utility model is related to, in addition to optical branching device, the arc light acquisition probe are connected with optical branching device, the optical branching device is connected with the arc light protecting device.The utility model combination optical branching device, the volume of arc light protecting device can accomplish minimum as far as possible, reduce the laying quantity in main fiber loop, meet the use demand of numerous terminal temperature differences.
Description
Technical field
The utility model is related to it is a kind of be used to detecting in high and low voltage electric distribution system distribution loop whether the system of short trouble,
A kind of arclight fault detection system is specifically disclosed.
Background technology
Currently, the short trouble protection of the main bus-bar for high and low voltage electric distribution system, branch distribution loop, traditional approach are
The electric current of major loop is gathered by computer integrated protection, according to the amplitude of variation of electric current, is entered by computer integrated protection
Trip command is sent after row logic judgment, by major loop breaker tripping；Although this protected mode can be when failure occurs
In time by dump, prevent accident from further expanding, but can not to greatest extent protection equipment it is without damage.In this feelings
Under condition, arc light protecting device arises at the historic moment, and is able to extensive use.
While the short trouble of main bus-bar, branch distribution loop when high and low voltage electric distribution system, it may appear that powerful electricity
Arc light, the operation principle of arc protection device is exactly by collection arclight of popping one's head in, and is sent to protection device by optical fiber, is filled by protection
Put and send trip signal, by the breaker tripping of major loop or duplexure, to play a protective role.It is straight by then passing through optical fiber
Transmission optical signal is connect, its reaction speed is general all within 8ms, along with the actuation time of breaker is in 85ms or so, so
Occurring to the whole time of failure removal to control within 100ms from failure, this period belongs to the initial period of arc light,
Pair with equipment will not damaging property infringement.So arc protection is a kind of more structurally sound protected mode.
At present in arc light protecting device, there are two kinds for the acquisition mode of arc light：
Mode 1 is transmitted for point-to-point collection；(referring to Fig. 1)
Mode 2 is ribbon fiber around collection；(referring to Fig. 2)
The drawbacks of mode 1：Because each arc probe is that the independent optical fiber used is transferred directly to protection device, so
The volume of arc light protecting device is larger, or the arc probe loop quantity that single arc light protecting device has access to is limited
, this is just unfavorable for the control of cost and the exploitation of upgrading products (such as：Existing arc protection function is integrated into microcomputer synthesis
In protection device).
The drawbacks of mode 2：Because ribbon fiber is used around form, in power distribution cabinet segmentation arrangement, the scene of dispersed placement
Under, site operation is cumbersome；Arc light can not accurately be positioned point occurs；Once local damage, integral loop around optical fiber just must
Must all it change.
Utility model content
Goal of the invention of the present utility model is：One kind is provided for solution problem above and combines optical branching device, with reference to light point
Road device, the volume of arc light protecting device can accomplish minimum as far as possible, and reduce the laying quantity in main fiber loop, meet numerous ends
A kind of arclight fault detection system of the use demand of end subscriber.
Technical scheme is such used by the utility model：
A kind of arclight fault detection system, including arc light protecting device and multiple arc light acquisition probes, in addition to light point
Road device (combiner, realizes that multichannel inputs, all the way output), and the arc light acquisition probe is connected with optical branching device, the optical branching
Device is connected with the arc light protecting device.
Further, multiple arc light acquisition probes are connected by optical fiber with the optical branching device respectively.
Further, the arc light protecting device configures an optical communication interface, for being connected with the optical branching device.
In summary, due to being using above-mentioned technical proposal, the beneficial effects of the utility model：
A, arc light protecting device is only needed to configure an optical communication interface, and its volume can be substantially reduced, originally as single
Only protection device, it can be integrated into the prerequisite protection of distribution system gone (such as a protection module completely：It is high
The computer integrated protection being press-fitted in electric system).Allow traditional GPF (General Protection False to realize modular arrangements, promote product
Upgrading.In addition, this mode can simplify protection system architecture, site operation workload is greatly simplified, is manufactured into so as to save
Sheet and project implementation cost.
B, " optical branching device " is already belonging to matured product in addition, and 1:128 " optical branching device " is relatively common, small volume, valency
Lattice are cheap, installation facility, do not influenceed by power distribution cabinet putting position.Using 1:128 " optical branching device " also implies that 1
" optical branching device " can meet the transmission line of 128 arc probes, compared at present must gather 128 arc probes
128 road arc optical signals are transferred directly to the pattern of protection device by optical fiber, and its cost is to substantially reduce.
By taking existing 0.4kV low-voltage distribution systems as an example：10/0.4kV transformer maximum capacity is 3150kVA, this change
Depressor is powered to one section of main bus-bar, and the maximum quantity of the low-voltage cabinet connected on this section of main bus-bar is not over 40, according to every
Cabinet sets 3 arc light collection points (main bus-bar room, main device room, cable vault), and maximum arc light collection point is 120, if
Arc protection is realized according to traditional arc light protecting device (usual 32 collection points), then needs 4 arc light protecting device parallel connections,
General arc light protecting device is necessarily mounted in main incoming line cabinet to be led in order to which the tripping operation output contact of arc light protecting device is accessed
The trip(ping) circuit of incoming line cabinet, so needing 120 road optical fiber being connected on the arc light protecting device of incoming line cabinet.Wiring works
Measure huge, and arc light protecting device also is installed without enough installing spaces in main incoming line cabinet.If entered using optical branching device
Row arc optical signal transmits, and the optical branching on 128 tunnels can meet use demand, and optical branching device volume is very small, can install
In any cabinet of whole cabinet combination, the optical signal after optical branching device is handled, it is only necessary to which guarantor is transferred to by an optical fiber
Protection unit, because arc light protecting device only needs to receive an optical signal, its volume can accomplish smaller or arc protection dress
Put and can be integrated into as One function module in the protection device of main lead-in circuit breaker, its advantage is clearly.
C, " optical branching device " has fully met the transmission essence of communication, levels as the node device in optic communication loop
Degree requires.In arc light protecting system, arc light protecting device is by being used as whether it needs execution protection dynamic either with or without arc light
One of the important criterion made, so for the optical transport required precision in communication system, its required precision is relatively low
, existing " optical branching device " may insure the reliability of arc light transmission completely, will not compared with existing arc light transmission mode
Reduce its overall protection reliability.
Brief description of the drawings
Fig. 1 is the utility model prior art construction figure；
Fig. 2 is the utility model another kind prior art construction figure；
Fig. 3 is structure chart of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 3, a kind of arclight fault detection system, including arc light protecting device 2, multiple arc light acquisition probes 1
With optical branching device 3, multiple arc light acquisition probes 1 are connected by optical fiber with the optical branching device 3 respectively, the optical branching device 3 with
The arc light protecting device 2 is connected by optical fiber.
The arc light protecting device 2 only needs to configure an optical communication interface, for being connected with the optical branching device 3, this
Sample can reduce the volume of arc light protecting device 2 as far as possible.
Transmitted for the arc light of arc light protecting device in high and low voltage electric distribution system, light letter will be controlled by using optical branching device
Number transmission, the optical signal that each arc probe is collected, be transferred to one in each road branch optical fiber loop corresponding to it
In optical fiber.I.e.：Using transmission of the optical branching device to arc light in arc light protecting system, realize that multichannel inputs, the control exported all the way
Method.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of arclight fault detection system, including arc light protecting device and multiple arc light acquisition probes, it is characterised in that：Also
Including optical branching device, the arc light acquisition probe is connected with optical branching device, and the optical branching device connects with the arc light protecting device
Connect.
A kind of 2. arclight fault detection system according to claim 1, it is characterised in that：Multiple arc light acquisition probes point
It is not connected by optical fiber with the optical branching device.
A kind of 3. arclight fault detection system according to claim 1, it is characterised in that：The arc light protecting device is matched somebody with somebody
An optical communication interface is put, for being connected with the optical branching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720715223.5U CN206804785U (en) | 2017-06-20 | 2017-06-20 | A kind of arclight fault detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720715223.5U CN206804785U (en) | 2017-06-20 | 2017-06-20 | A kind of arclight fault detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206804785U true CN206804785U (en) | 2017-12-26 |
Family
ID=60747943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720715223.5U Active CN206804785U (en) | 2017-06-20 | 2017-06-20 | A kind of arclight fault detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206804785U (en) |
-
2017
- 2017-06-20 CN CN201720715223.5U patent/CN206804785U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 212000 NO.666, Chunliu North Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Xiangjiang Technology (Group) Co.,Ltd. Country or region after: China Address before: 212000 NO.666, Chunliu North Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: XIANGJIANG TECHNOLOGY Co.,Ltd. Country or region before: China |