CN105093067A - Intelligent remote fault indicating system - Google Patents
Intelligent remote fault indicating system Download PDFInfo
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- CN105093067A CN105093067A CN201510523901.3A CN201510523901A CN105093067A CN 105093067 A CN105093067 A CN 105093067A CN 201510523901 A CN201510523901 A CN 201510523901A CN 105093067 A CN105093067 A CN 105093067A
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Abstract
The invention relates to an intelligent remote fault indicating system comprising an LTR400D indicator and a monitoring center. The indicator is used to locate short-circuit and grounding faults of a distribution network overhead line, and is of an integrated three-phase structure. A control system of the indicator comprises a detection module, a judgment module, a video module, and a transmission module. The detection module is responsible for detecting the voltage and current of the control system and transmitting the detected data to the judgment module. The judgment module is used to judge whether the data sent by the detection module meets the conditions of fault and send the detection result to a display module and the transmission module if the data sent by the detection module meets the conditions of fault. The video module is used to monitor the running state around an installation point in real time, the monitoring center actively calls a signal from the judgment module, or when there is a fault, the monitoring center receives a signal from the judgment module, and the signal is uploaded to the monitoring center through the transmission module. The transmission module is used to send signals to the background monitoring center through the GSM after receiving the signals sent by the judgment module and the video module.
Description
Technical field
The invention belongs to transmission line of electricity technical field, especially a kind of intelligent remote fault-indicating system.
Background technology
MV distribution systems distribution is wide, dielectric level is low, easily earth fault occurs.China's MV distribution systems adopts neutral non-effective grounding mode mostly, both small current neutral grounding modes, automatically can cease arc, and fault restriction residual flow can improve customer power supply reliability to a certain extent.But small current neutral grounding system due to residue current of ground fault in electrical little, fault detect is very difficult.In small current neutral grounding system, the location of singlephase earth fault is the technological difficulties that puzzlement power distribution network runs always.Accurately determine that ground connection section can avoid unnecessary grid switching operation, keep the continuity of power supply.Due to small current neutral grounding system, earth-fault current signal is very weak, is easily subject to electromagnetic interference (EMI) and harmonic pollution, makes ground signalling distortion, adds the difficulty of detection, have impact on the accuracy of fault detector.
Part transmission line of electricity, by way of suburbs construction site, often has heavy construction car to come in and go out, and affects and easily the faults such as broken string occurs, have impact on the safe operation of electric system by external force.As occurred in remote sites, fault is easy-to-search not.
Summary of the invention
The object of the invention is to overcome prior art deficiency, a kind of intelligent remote fault-indicating system is provided.
The technical solution used in the present invention is:
A kind of intelligent remote fault-indicating system, this system comprises LTR400D indicator and a Surveillance center, and this indicator is for locating distribution network overhead line short circuit, earth fault, three-phase integrated, the control system of this indicator comprises: detection module, judge module, video module, transport module
Detection module is responsible for the voltage and current of detection system and is sent the data detected to judge module;
The data that judge module is sent here according to detection module, judge whether the condition meeting fault, if meet, testing result are given display module and transport module;
Video module monitors the running status near mounting points in real time, receives judge module signal, be uploaded to Surveillance center by transport module when Surveillance center initiatively transfers or breaks down;
Signal is sent to background monitoring center by GSM after receiving the letter that reading module and video module send by transport module.
And described LTR400D indicator is arranged on line branch point and sectionaliser installation place.
Advantage of the present invention and good effect are:
Indicator in the present invention is arranged on critical positions along the line, as line branch point and sectionaliser installation place, 4-5 rice below wire is fixed on bolt or anchor ear, charged installation, safely, simple, quick, the unnecessary operation of isolating switch and section breaker is decreased after employing fault detector, thus the impact to electrical network when decreasing the wearing and tearing of equipment and overlap.Conventional failure indicator needs received by communicating terminal case and forward information to background system, uses device type various, installs loaded down with trivial details, easily occur operation troubles, safeguards inconvenient.
LTR400D in the present invention integrates fault detector and communicating terminal, do not re-use traditional communicating terminal case, only a device for fault indicator just instead of 3 traditional fault detectors and a communicating terminal case, and installation and maintenance safety more more convenient than traditional approach, safeguards more convenient.After LTR400D detects line failure, by the communication module that indicator is built-in, with GSM or GPRS for transmission mode, be sent to background system, after background system receives failure message, also can forward failure message to operations staff, so that the understanding line condition that staff can be real-time, can not because of not missing failure message before background system, operation maintenance is more safe and reliable.
Embodiment
Below by embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of intelligent remote fault-indicating system, this system comprises LTR400D indicator and a Surveillance center, and this indicator is for locating distribution network overhead line short circuit, earth fault, three-phase integrated, can all contingent faults of detection line.This indicator is applicable to isolated neutral system, Neutral Grounding through Resistance in Electrical system and neutral by arc extinction coil grounding system.
This indicator is arranged on critical positions along the line, as line branch point and sectionaliser installation place, is fixed on 4-5 rice below wire, charged installation with bolt or anchor ear, safely, simply, fast.
Once earth fault be detected, be allly arranged on fault detector in fault feeder all by action; When detect to be short-circuited fault in circuit time, be only arranged on the indicator motion between transformer and trouble spot.LTR400D can quick position trouble spot, thus reduces power off time, enhances the service of client and improves power supply quality.
Detection, the maintenance of transient fault can help staff to be eliminated in advance by potential permanent fault point.
The important aspect of another one decreases the unnecessary operation of isolating switch and section breaker after employing fault detector, thus the impact to electrical network when decreasing the wearing and tearing of equipment and overlap.
Increase video monitoring function in system, by the video monitoring equipment of mounting points, can monitor running status and the periphery situation of transmission line of electricity in real time, suggestion is arranged on large-scale site ingress/egress points and external force affects location, transmission line of electricity multiple district.
During transmission line of electricity normally runs, video monitoring equipment is monitored in real time, and active upload video is not to Surveillance center, and Surveillance center can transfer real time video signals according to mounting points numbering; Once there be fault to occur, while fault detector failure judgement, start video capture function nearby, video equipment active upload vision signal is to Surveillance center, the place that the signal failure judgement type that operations staff can transmit according to fault detector and video equipment simultaneously, fault occur and reason etc., arrangement is promptly and accurately fixed a breakdown.
When circuit normally runs, indicating fault and vision signal normalization run, and not active upload Surveillance center only stores as data, so that playback afterwards, can not too much take communication port resource like this; During line failure, indicating fault and the timely active upload failure message of vision signal are to Surveillance center.
The control system of this indicator comprises: detection module, judge module, video module, transport module,
Detection module is responsible for the voltage and current of detection system and is sent the data detected to judge module;
The data that judge module is sent here according to detection module, judge whether the condition meeting fault, if meet, testing result are given display module and transport module;
Video module monitors the running status near mounting points in real time, receives judge module signal, be uploaded to Surveillance center by transport module when Surveillance center initiatively transfers or breaks down;
Signal is sent to background monitoring center by GSM after receiving the letter that reading module and video module send by transport module.
Although disclose embodiments of the invention for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment.
Claims (2)
1. an intelligent remote fault-indicating system, it is characterized in that: this system comprises LTR400D indicator and a Surveillance center, this indicator is for locating distribution network overhead line short circuit, earth fault, three-phase integrated, the control system of this indicator comprises: detection module, judge module, video module, transport module
Detection module is responsible for the voltage and current of detection system and is sent the data detected to judge module;
The data that judge module is sent here according to detection module, judge whether the condition meeting fault, if meet, testing result are given display module and transport module;
Video module monitors the running status near mounting points in real time, receives judge module signal, be uploaded to Surveillance center by transport module when Surveillance center initiatively transfers or breaks down;
Signal is sent to background monitoring center by GSM after receiving the letter that reading module and video module send by transport module.
2. intelligent remote fault-indicating system according to claim 1, is characterized in that: described LTR400D indicator is arranged on line branch point and sectionaliser installation place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523901.3A CN105093067A (en) | 2015-08-24 | 2015-08-24 | Intelligent remote fault indicating system |
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| CN201510523901.3A CN105093067A (en) | 2015-08-24 | 2015-08-24 | Intelligent remote fault indicating system |
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| CN105093067A true CN105093067A (en) | 2015-11-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064735A (en) * | 2017-03-21 | 2017-08-18 | 武汉绿源楚能电网技术有限公司 | A kind of transmission line malfunction Visualized Monitoring System and method |
| CN107167687A (en) * | 2017-07-20 | 2017-09-15 | 安徽科盟电子科技有限公司 | A kind of outdoor distribution transformer remote fault diagnosis system |
| CN107508251A (en) * | 2017-07-20 | 2017-12-22 | 国网山东省电力公司冠县供电公司 | The isolation disposal system and method for power supply |
| CN109839568A (en) * | 2019-02-25 | 2019-06-04 | 国家电网有限公司 | Transmission line malfunction diagnostic system based on zero-sequence current detection |
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| CN202049216U (en) * | 2011-04-20 | 2011-11-23 | 北京昊创瑞通电气设备有限公司 | Fault indicator with image taking and high-speed communication functions |
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| CN102928757A (en) * | 2012-11-22 | 2013-02-13 | 重庆理工大学 | Insulator arc-over fault positioning device and positioning method based on discharging light detection |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064735A (en) * | 2017-03-21 | 2017-08-18 | 武汉绿源楚能电网技术有限公司 | A kind of transmission line malfunction Visualized Monitoring System and method |
| CN107167687A (en) * | 2017-07-20 | 2017-09-15 | 安徽科盟电子科技有限公司 | A kind of outdoor distribution transformer remote fault diagnosis system |
| CN107508251A (en) * | 2017-07-20 | 2017-12-22 | 国网山东省电力公司冠县供电公司 | The isolation disposal system and method for power supply |
| CN107508251B (en) * | 2017-07-20 | 2020-07-24 | 国网山东省电力公司冠县供电公司 | Power supply isolation processing system and method |
| CN109839568A (en) * | 2019-02-25 | 2019-06-04 | 国家电网有限公司 | Transmission line malfunction diagnostic system based on zero-sequence current detection |
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Application publication date: 20151125 |