CN104391227A - Distribution line online monitoring collection terminal supporting fault recording - Google Patents
Distribution line online monitoring collection terminal supporting fault recording Download PDFInfo
- Publication number
- CN104391227A CN104391227A CN201410710643.5A CN201410710643A CN104391227A CN 104391227 A CN104391227 A CN 104391227A CN 201410710643 A CN201410710643 A CN 201410710643A CN 104391227 A CN104391227 A CN 104391227A
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- module
- distribution line
- current
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a distribution line online monitoring collection terminal supporting fault recording, solving the problem of being difficult to detect small current neutral grounding faults. The distribution line online monitoring communication terminal includes a main body in which a power supply module, a remote control switch, a current amplifier, a current sensor, an electric field sensor, a fault recorder, a data I/O module and a wireless signal transceiver, wherein the power supply module is electrically connected to a distribution line, and also electrically connected to the remote control switch and the wireless signal transceiver respectively; the remote control switch is electrically connected to the current amplifier, the electric field sensor and the wireless signal transceiver respectively; the current amplifier is electrically connected to the current sensor; the electric field sensor and the current sensor are respectively electrically connected to the fault recorder that is electrically connected to the data I/O module; the data I/O module is electrically connected to the wireless signal transceiver. The terminal can achieve the measurement accuracy of +/-1% within the current range of 0-630A, detect the +/-5% variation of the line-to-ground electric field, support fault recording, and control operation remotely.
Description
Technical field
The present invention relates to a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording.
Background technology
Traditional distribution line on-line monitoring acquisition terminal mainly carries out fault warning by the change of detection line electric current, electric field, thus distribution line localization of fault is played a role, but usually breakdown judge and locating accuracy lower, especially low current grounding, current acquisition terminal cannot realize the high-speed sampling of current signal, catch temporal variations amount, cannot realize failure wave-recording and fault analysis is traced to the source, this makes how accurately to judge that low current grounding is the difficult problem existed in a distribution always.Therefore, need a kind of support high frequency record ripple, the distribution line on-line monitoring acquisition terminal of the transient state process of fault can be captured, judge a difficult problem in order to solve low current grounding.
Summary of the invention
The object that the present invention will reach is to provide a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording, can detect Weak current earth fault, supports failure wave-recording, and can be remotely controlled.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording, comprise body, power module is provided with in body, teleswitch, current amplifier, current sensor, electric-field sensor, fault oscillograph, data I/O module and wireless signal transceiver, power module is electrically connected with distribution line and from distribution line power taking, power module and teleswitch, wireless signal transceiver is electrically connected respectively, teleswitch and current amplifier, electric-field sensor, wireless signal transceiver is electrically connected respectively, current amplifier is electrically connected with current sensor, electric-field sensor, current sensor is electrically connected with fault oscillograph respectively, fault oscillograph is electrically connected with data I/O module, data I/O module is electrically connected with wireless signal transceiver.
During described terminal works, the electric current of distribution line is obtained by power module, power module is powered for the miscellaneous part in terminal and is provided current signal for current sensor, current signal is detected by current sensor after current amplifier amplifies, more accurate, when line failure, before there is moment and permanent fault generation in fault, circuit can produce abnormal disturbances, by to single-phase current, the detection identification disturbance of the signals such as electric field, fault oscillograph is triggered, the data of acquisition are transferred to data I/O module by fault oscillograph, information is sent to the wireless receiving and dispatching end of user by data I/O module by wireless signal transceiver, user is by the analysis of large data, combined circuit model, fault is analyzed, differentiate, location.When overhauling circuit; distribution line needs power-off sometimes; distribution line likely can form rush of current in the moment of power-off, energising and cause terminal to damage; user sends signal by wireless receiving and dispatching end; the closed of teleswitch can be controlled after the wireless signal transceiver of terminal receives signal or disconnect; thus other components and parts in the terminals such as protective current sensor, electric-field sensor; guaranteeing because power module directly connects wireless signal transceiver that wireless signal transceiver is at any time can duty, thus removes the inconvenience that people is switch terminal from.
Further, in described body, being also provided with data-carrier store, for recording the data by data I/O module, being convenient to follow-up work.
Further, described body is provided with print module.When staff overhauls, carry the inconvenience of wireless receiving and dispatching end, staff can data at the scene in print data storer, are convenient to failure judgement position and fault degree.
Further, described body is provided with display module.The data of real-time display current sensor and electric-field sensor.
Further, described display module is pointer display device.Cost is lower, durable in use.
After adopting technique scheme, tool of the present invention has the following advantages:
The measuring accuracy of ± 1% can be obtained within the scope of line current 0-630A, can the change of high-sensitivity detection line-to-ground electric field amplitude ± 0.5%, support failure wave-recording, remote controlled operation simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the schematic diagram of an embodiment of the present invention;
Fig. 2 is the front view of Fig. 1 embodiment.
Embodiment
Fig. 1,2 is depicted as a kind of embodiment of the present invention.
A kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording, comprise body 12, power module 1 is provided with in body 12, teleswitch 2, current amplifier 3, current sensor 4, electric-field sensor 5, fault oscillograph 6, data I/O module 7 and wireless signal transceiver 8, power module 1 is electrically connected with distribution line and from distribution line power taking, power module 1 and teleswitch 2, wireless signal transceiver 8 is electrically connected respectively, teleswitch 2 and current amplifier 3, electric-field sensor 5, wireless signal transceiver 8 is electrically connected respectively, current amplifier 3 is electrically connected with current sensor 4, electric-field sensor 5, current sensor 4 is electrically connected with fault oscillograph 6 respectively, fault oscillograph 6 is electrically connected with data I/O module 7, data I/O module 7 is electrically connected with wireless signal transceiver 8.
During described terminal works, the electric current of distribution line is obtained by power module 1, power module 1 is powered for the miscellaneous part in terminal and is provided current signal for current sensor 4, current signal is detected by current sensor 4 after current amplifier 3 amplifies, more accurate, when line failure, before there is moment and permanent fault generation in fault, circuit can produce abnormal disturbances, by to single-phase current, the detection identification disturbance of the signals such as electric field, fault oscillograph 6 is triggered, the data of acquisition are transferred to data I/O module 7 by fault oscillograph 6, information is sent to the wireless receiving and dispatching end of user by data I/O module 7 by wireless signal transceiver 8, user is by the analysis of large data, combined circuit model, fault is analyzed, differentiate, location.When overhauling circuit; distribution line needs power-off sometimes; distribution line likely can form rush of current in the moment of power-off, energising and cause terminal to damage; user sends signal by wireless receiving and dispatching end; the closed of teleswitch 2 can be controlled after the wireless signal transceiver 8 of terminal receives signal or disconnect; thus other components and parts in the terminal such as protective current sensor 4, electric-field sensor 5; guaranteeing because power module 1 directly connects wireless signal transceiver 8 that wireless signal transceiver 8 is at any time can duty, thus removes the inconvenience that people is switch terminal from.Data-carrier store 9 is also provided with in body 12, for recording the data by data I/O module 7, body 12 is provided with print module 10, when staff overhauls, carry the inconvenience of wireless receiving and dispatching end, staff can data at the scene in print data storer 9, are convenient to failure judgement position and fault degree.Body 12 is provided with display module 11, and display module 11 is pointer display device, in real time the data of display current sensor 4 and electric-field sensor 5, and cost is lower, durable in use.
The measuring accuracy of ± 1% can be obtained within the scope of line current 0 ~ 630A, can the change of high-sensitivity detection line-to-ground electric field amplitude ± 0.5%, support failure wave-recording, remote controlled operation simultaneously.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (5)
1. support the distribution line on-line monitoring acquisition terminal of failure wave-recording for one kind, it is characterized in that: comprise body (12), power module (1) is provided with in body, teleswitch (2), current amplifier (3), current sensor (4), electric-field sensor (5), fault oscillograph (6), data I/O module (7) and wireless signal transceiver (8), power module is electrically connected with distribution line and from distribution line power taking, power module and teleswitch, wireless signal transceiver is electrically connected respectively, teleswitch and current amplifier, electric-field sensor, wireless signal transceiver is electrically connected respectively, current amplifier is electrically connected with current sensor, electric-field sensor, current sensor is electrically connected with fault oscillograph respectively, fault oscillograph is electrically connected with data I/O module, data I/O module is electrically connected with wireless signal transceiver.
2. a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording according to claim 1, is characterized in that: be also provided with data-carrier store (9) in described body.
3. a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording according to claim 2, is characterized in that: described body is provided with print module (10).
4., according to the arbitrary described a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording of claim 1-3, it is characterized in that: described body is provided with display module (11).
5. a kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording according to claim 4, is characterized in that: described display module is pointer display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710643.5A CN104391227A (en) | 2014-11-28 | 2014-11-28 | Distribution line online monitoring collection terminal supporting fault recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710643.5A CN104391227A (en) | 2014-11-28 | 2014-11-28 | Distribution line online monitoring collection terminal supporting fault recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104391227A true CN104391227A (en) | 2015-03-04 |
Family
ID=52609152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710643.5A Pending CN104391227A (en) | 2014-11-28 | 2014-11-28 | Distribution line online monitoring collection terminal supporting fault recording |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104391227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572482A (en) * | 2015-12-18 | 2016-05-11 | 国网冀北电力有限公司张家口供电公司 | Enclosed space electric field measurement device |
| CN113504432A (en) * | 2021-07-08 | 2021-10-15 | 广西电网有限责任公司电力科学研究院 | Transformer substation grounding grid monitoring system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6539287B1 (en) * | 1999-05-19 | 2003-03-25 | Mitsubishi Denki Kabushiki Kaisha | Distribution control system capable of isolating fault section without using time limited sequential shift function |
| CN103472361A (en) * | 2013-09-18 | 2013-12-25 | 上海申贝科技发展有限公司 | Power transmission line fault positioning system based on space signal detection and high-precision time service |
| CN103487726A (en) * | 2013-10-15 | 2014-01-01 | 浙江宝明电气有限公司 | System for online monitoring faults of electric power line |
| CN203772931U (en) * | 2014-01-03 | 2014-08-13 | 广东电网公司电力科学研究院 | Online power distribution network fault wave recording device based on wireless three-phase synchronous technology |
| CN204188751U (en) * | 2014-11-28 | 2015-03-04 | 国家电网公司 | A kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording |
-
2014
- 2014-11-28 CN CN201410710643.5A patent/CN104391227A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6539287B1 (en) * | 1999-05-19 | 2003-03-25 | Mitsubishi Denki Kabushiki Kaisha | Distribution control system capable of isolating fault section without using time limited sequential shift function |
| CN103472361A (en) * | 2013-09-18 | 2013-12-25 | 上海申贝科技发展有限公司 | Power transmission line fault positioning system based on space signal detection and high-precision time service |
| CN103487726A (en) * | 2013-10-15 | 2014-01-01 | 浙江宝明电气有限公司 | System for online monitoring faults of electric power line |
| CN203772931U (en) * | 2014-01-03 | 2014-08-13 | 广东电网公司电力科学研究院 | Online power distribution network fault wave recording device based on wireless three-phase synchronous technology |
| CN204188751U (en) * | 2014-11-28 | 2015-03-04 | 国家电网公司 | A kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572482A (en) * | 2015-12-18 | 2016-05-11 | 国网冀北电力有限公司张家口供电公司 | Enclosed space electric field measurement device |
| CN105572482B (en) * | 2015-12-18 | 2020-06-09 | 国网冀北电力有限公司张家口供电公司 | Closed space electric field measuring equipment |
| CN113504432A (en) * | 2021-07-08 | 2021-10-15 | 广西电网有限责任公司电力科学研究院 | Transformer substation grounding grid monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102590700B (en) | Based on pole line fast fault locating method and the device of time synchronized | |
| CN104267237B (en) | Leakage conductor current in resistance property measuring method and device | |
| CN103558507A (en) | Sensor for direct current fault line selection and alternating current interlarding line selection | |
| CN105301464A (en) | Movable type ultrahigh frequency partial discharge on-line monitoring system | |
| CN204188751U (en) | A kind of distribution line on-line monitoring acquisition terminal supporting failure wave-recording | |
| CN203310903U (en) | Transformer iron core earth current online monitor | |
| CN104391227A (en) | Distribution line online monitoring collection terminal supporting fault recording | |
| CN203405561U (en) | Direct current power source grounding fault searching device | |
| CN103399258B (en) | Based on the travelling wave ranging front end analogue amount collection plate of high-precision hall effect | |
| CN203365603U (en) | Portable direct-current system ground fault locating device | |
| CN203658521U (en) | Mobile insulation supervision instrument of transformer station DC system | |
| CN205067417U (en) | Soil pH detector | |
| CN104215887A (en) | Portable partial discharge detector | |
| CN203376404U (en) | Intelligent-type electric field abnormity safety alarming device | |
| CN206161738U (en) | Non -contact multichannel ground resistance on -line monitoring device | |
| CN108572275B (en) | Inrush current detection system and detection method | |
| CN115508614B (en) | Airborne non-contact type high-voltage electricity testing method and system | |
| CN103675613A (en) | Transformer station DC system movable type insulation supervision instrument | |
| CN202975169U (en) | DC system ground insulation detection circuit based on DSP | |
| CN203732527U (en) | Automatic surface water monitoring device | |
| CN203224553U (en) | Sampling integral jaw-shaped AC active current meter | |
| CN202433480U (en) | Fast fault location device of overhead lines based on time synchronization | |
| CN105572482A (en) | Enclosed space electric field measurement device | |
| CN205880048U (en) | Portable transformer core LEAKAGE CURRENT TEST appearance | |
| CN202929090U (en) | Real-time load current and zero-sequence current detection system of three-phase power transmission and distribution circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |