CN204967424U - A fault indicator - Google Patents
A fault indicator Download PDFInfo
- Publication number
- CN204967424U CN204967424U CN201520707632.1U CN201520707632U CN204967424U CN 204967424 U CN204967424 U CN 204967424U CN 201520707632 U CN201520707632 U CN 201520707632U CN 204967424 U CN204967424 U CN 204967424U
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Abstract
The utility model discloses a fault indicator relates to electric power system and electrified railway and pulls power supply contact net field. The utility model discloses the casing is inside to be equipped with battery and chip, and the outside is equipped with the sign, be equipped with circuit short circuit and earth fault measured module, single -chip module, communication module, board turning drive module and power module on the chip, circuit short circuit and earth fault measured module measure the trouble, and to single -chip module signals, the single -chip module response is gone out trouble measured module 2 through communication module to make the sign upset through board turning drive module, the casing top is equipped with the sensor support that has the sensing fastener and is fixed in the arc bottom plate of support. The utility model discloses have a power failure back induced voltage not to the zero hour at line fault, line fault can in time correctly be judged in a fault indicator's sign upset when the fault current of sudden change exceeded the definite value, promptly and accurately report trouble information, improved work efficiency, enlarged the range of application of indicator.
Description
Technical field
The utility model relates to electric power system and electric railway traction power supply contact line field, is specifically related to a kind of fault detector.
Background technology
User contacted directly by power distribution network and electric railway traction power supply contact line, and its reliable power supply ability and power supply quality are the direct embodiment of power supply unit economic benefit, correspond to again immeasurable social benefit.
Fault detector short circuit criteria parameter is in the market: in (1) circuit, electric current raises suddenly: when circuit is short-circuited, electric current in wire can raise suddenly, its size is relevant with the impedance in loop, the mutation current of fault detector action, interim provision is: in It >=100 ~ 160A formula: It-mutation current A; (2) in circuit, electric current and voltage equals zero: when circuit is short-circuited, transforming plant protecting action, switch trip, line outage, and the electric current and voltage now in wire is close to zero; (3) the mutation current time: in order to improve the accuracy of fault detector action; also need to match with transforming plant protecting action; the time width of mutation current, interim provision is: in 10 ~ 60ms≤△ T≤1.5 ~ 4s formula: △ T-mutation current time (s).When above condition all meets, fault detector is just judged as that circuit there occurs short trouble.
But these products can not adapt to the distribution line of electrified area segments and the requirement of electric railway traction power supply contact line, one is that the induced voltage of electric railway to distribution line is higher, and electric railway traction power supply contact line uplink and downlink when having a power failure respectively induced voltage higher, break down respectively once distribution line and contact line uplink and downlink, because of the existence of induced voltage, general fault detection terminal cisco unity malfunction, reduces the reliability of system; Two is after breaking down, and control centre needs to notify that the relevant personnel carry out troubleshooting after failure judgement point, extends fault handling time.Therefore the auto fault locating system for distribution feeders of the feature development of new according to electric railway is necessary.
Distribution system geographical environment along the line is complicated, branched line is many, once the general only outlet breaker tripping operation of the fault that is short-circuited at circuit, even if by switch-segment on backbone, also limited several sections can only be isolated, find out abort situation and often need at substantial human and material resources and time.Tradition looking up the fault mode, transmission line be attendant according to fault oscillograph, onsite lookup, automatization level is not high, particularly at the distribution line near electric railway, and electric railway traction power supply contact line, due to high-tension interference, cause and correctly cannot judge fault.
Utility model content
Technical problem to be solved in the utility model is according to Along Railway power circuit, electric railway traction power supply contact line induced voltage when fault outage is higher, the feature that during normal operation, rated current is less, there is provided a kind of and correctly judge line fault in time, and can a kind of fault detector of reporting fault information promptly and accurately.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of fault detector, is characterized in that: this indicating device comprises housing, battery, chip, direction board, sensing support, sensing wire clamp and curved plate; Described enclosure interior is provided with battery and chip, and outside is provided with direction board; Described chip is provided with line short and earth fault measurement module, one-chip computer module, communication module, board turning driver module and power module, described power module connects battery, power is provided to one-chip computer module and board turning driver module, line short and earth fault measurement module measure fault, signal is sent to one-chip computer module, one-chip computer module responds, and is sent by fault message, and by board turning driver module, direction board is overturn by communication module; Described case top is provided with sensing support, and sensing support is provided with sensing wire clamp; Be provided with curved plate below sensing wire clamp to be fixed on sensing support.
Further technical scheme is: described sensing wire clamp and sensing support are for being rotatably connected.
Further technical scheme is: under described direction board normal condition, side is white, and after upset, side scribbles the fluorescent paint of warning color.
Further technical scheme is: described direction board is provided with indicator light.
Further technical scheme is: described battery is solar charging panel and storage battery.
Further technical scheme is: the distance of described sensing wire clamp and curved plate minimum point is greater than the diameter of be arranged on electric wire.
The beneficial effect adopting technique scheme to produce is:
The utility model is according to Along Railway power circuit, traction power supply contact line induced voltage when fault is higher, the feature that during normal operation, rated current is less, after line outage induced voltage not to zero time, when the fault current of sudden change exceedes definite value, the direction board upset of fault detector, correctly can judge line fault, reporting fault information promptly and accurately in time, improve operating efficiency, expand the range of application of indicating device.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is principle schematic of the present utility model.
Wherein: 1-housing, 2-battery, 3-chip, 4-direction board, 5-sensing support, 6-sensing wire clamp, 7-curved plate.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
As shown in Figure 1-2, a kind of fault detector, this indicating device comprises housing 1, battery 2, chip 3, direction board 4, sensing support 5, sensing wire clamp 6 and curved plate 7; Described housing 1 inside is provided with battery 2 and chip 3, and outside is provided with direction board 4; Described chip 3 is provided with line short and earth fault measurement module, one-chip computer module, communication module, board turning driver module and power module, described power module connects battery 2, power is provided to one-chip computer module and board turning driver module, line short and earth fault measurement module measure fault, signal is sent to one-chip computer module, one-chip computer module responds, and is sent by fault message, and by board turning driver module, direction board 4 is overturn by communication module; Described housing 1 top is provided with sensing support 5, and sensing support 5 is provided with sensing wire clamp 6; Be provided with curved plate 7 below sensing wire clamp 6 to be fixed on sensing support 5.
Preferred further: described sensing wire clamp 6 and sensing support 5 are for being rotatably connected.
Preferred further: under described direction board 4 normal condition, side is white, and after upset, side scribbles the fluorescent paint of warning color, and direction board 4 is provided with indicator light.
Preferred further: described battery 2 is solar charging panel and storage battery.
Preferred further: described sensing wire clamp 6 and the distance of curved plate 7 minimum point are greater than the diameter of be arranged on electric wire.
The utility model relies on transducer and sensing support 5 and sensing wire clamp 6 direct-on-line detection signal, the electromagnetic field change utilizing fault current to produce, produce the work of pulse signal exciting circuit, under normal circumstances, fault detector is failure to actuate, direction board 4 is white displays, when line failure, line short and earth fault measurement module measure fault in time, and send signal to one-chip computer module, one-chip computer module response is interrupted, failure judgement type, and is sent by fault message by communication module.Board turning driver module makes direction board 4 overturn the one side of the fluorescent paint for scribbling warning color.Remake after fault detector action and once judge, if line current recovers normal in 2s, the success of line switching reclosing is described, fault point is excluded, and recovers normal power supply state, and fault detector recovers normal condition.If line current loses in 2s, illustrate that fault has caused higher level's switch trip and caused circuit decompression, be then defined as fault, fault detector keeps action, until automatically recover normal condition the reset time reaching setting.After line outage induced voltage not to zero time, when the fault current of sudden change exceedes definite value, the direction board 4 of fault detector overturns.
When the utility model is used for line short and one-way earth fault, only fault detection part is different, and communication system, troubleshooting and display section are public.Fault detector is arranged on each lines branch line, action on the spot after fault current being detected, and by short distance communication module, send fault message to substation, after fault message is received in substation, central station system is issued by GSM (or GPRS) communication system, main station system carries out Network topology, and fault location result is notified related personnel with short message mode, and can combine with GIS-Geographic Information System, demonstrate geographical position, fault point, operating maintenance personnel can directly arrive fault point and fix a breakdown.
Long according to railway electric power supply line, traction power supply contact line basic routing line, the feature of branched line few (or without branch), suggestion central master station is placed in power supply work area, fault detector is arranged on power circuit, the zone distance suggestion of fault detection terminal is 2-3 kilometer, also can according to the zone distance of the operating experience reasonable arrangement fault detection terminal of user.
Innovation point of the present utility model:
(1) overcome because of induced voltage in fault detection terminal design, can not the problem of correct operation.
(2) innovation adopts Micro Energy Lose design, using solar energy as main power source, avoids equipment and primary system to have direct electrical connection, can chargedly install, both ensure that its fail safe, and turn avoid has a power failure installs.The power consumption of whole system is very little, so greatly reduce the requirement of backup battery, extends the service life of unglazed standby time and battery.
(3) after fault message is sent to center, location of fault not only will show on panel, and simultaneous faults information will be forwarded on the mobile phone of the relevant personnel automatically.
Claims (6)
1. a fault detector, is characterized in that: this indicating device comprises housing (1), battery (2), chip (3), direction board (4), sensing support (5), sensing wire clamp (6) and curved plate (7); Described housing (1) inside is provided with battery (2) and chip (3), and outside is provided with direction board (4); Described chip (3) is provided with line short and earth fault measurement module, one-chip computer module, communication module, board turning driver module and power module, described power module connects battery (2), power is provided to one-chip computer module and board turning driver module, line short and earth fault measurement module measure fault, signal is sent to one-chip computer module, one-chip computer module responds, and is sent by fault message, and by board turning driver module, direction board (4) is overturn by communication module; Described housing (1) top is provided with sensing support (5), and sensing support (5) is provided with sensing wire clamp (6); Sensing wire clamp (6) below is provided with curved plate (7) and is fixed on sensing support (5).
2. a kind of fault detector according to claim 1, is characterized in that: described sensing wire clamp (6) and sensing support (5) are for being rotatably connected.
3. a kind of fault detector according to claim 1, is characterized in that: under described direction board (4) normal condition, side is white, and after upset, side scribbles the fluorescent paint of warning color.
4. a kind of fault detector according to claim 1, is characterized in that: described direction board (4) is provided with indicator light.
5. a kind of fault detector according to claim 1, is characterized in that: described battery (2) is solar charging panel and storage battery.
6. a kind of fault detector according to claim 1, is characterized in that: described sensing wire clamp (6) is greater than the diameter of be arranged on electric wire with the distance of curved plate (7) minimum point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707632.1U CN204967424U (en) | 2015-09-14 | 2015-09-14 | A fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707632.1U CN204967424U (en) | 2015-09-14 | 2015-09-14 | A fault indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967424U true CN204967424U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520707632.1U Expired - Fee Related CN204967424U (en) | 2015-09-14 | 2015-09-14 | A fault indicator |
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| CN (1) | CN204967424U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375716A (en) * | 2018-03-15 | 2018-08-07 | 山东广域科技有限责任公司 | A kind of portable power distribution line fault positioner and method |
| CN110221175A (en) * | 2019-06-26 | 2019-09-10 | 广州供电局有限公司 | Fault detector |
| CN112327103A (en) * | 2020-11-06 | 2021-02-05 | 国网新疆电力有限公司昌吉供电公司 | Intelligent monitoring method and monitoring device for distribution network equipment wire clamp |
| CN116609554A (en) * | 2023-07-19 | 2023-08-18 | 青岛鼎信通讯股份有限公司 | Modularized fault indicator and working method thereof |
-
2015
- 2015-09-14 CN CN201520707632.1U patent/CN204967424U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375716A (en) * | 2018-03-15 | 2018-08-07 | 山东广域科技有限责任公司 | A kind of portable power distribution line fault positioner and method |
| CN108375716B (en) * | 2018-03-15 | 2024-03-15 | 山东广域科技有限责任公司 | Portable distribution line fault positioning device and method |
| CN110221175A (en) * | 2019-06-26 | 2019-09-10 | 广州供电局有限公司 | Fault detector |
| CN112327103A (en) * | 2020-11-06 | 2021-02-05 | 国网新疆电力有限公司昌吉供电公司 | Intelligent monitoring method and monitoring device for distribution network equipment wire clamp |
| CN116609554A (en) * | 2023-07-19 | 2023-08-18 | 青岛鼎信通讯股份有限公司 | Modularized fault indicator and working method thereof |
| CN116609554B (en) * | 2023-07-19 | 2023-10-24 | 青岛鼎信通讯股份有限公司 | Modularized fault indicator and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20210914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |