CN203191501U - Fault location system for DC transmission line - Google Patents
Fault location system for DC transmission line Download PDFInfo
- Publication number
- CN203191501U CN203191501U CN 201320142308 CN201320142308U CN203191501U CN 203191501 U CN203191501 U CN 203191501U CN 201320142308 CN201320142308 CN 201320142308 CN 201320142308 U CN201320142308 U CN 201320142308U CN 203191501 U CN203191501 U CN 203191501U
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- transmission line
- gprs
- communication network
- mcu
- current sensor
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Abstract
The utility model discloses a DC transmission line fault location system, including A DC power transmission line, a plurality of current collection devices, a GPRS communication network and a host computer. Each current collection device includes a current sensor, an operational amplifier, a filter, an A / D converter, an MCU, a GPRS module and a battery pack; the current sensor, the operational amplifier, the filter, the A / D converter and the MCU are sequentially connected; the MCU is respectively connected with the GPRS module and the battery pack; the current sensor is connected to the DC power line; the GPRS module is in wireless communication with the GPRS network; and the GPRS communication network is connected with the host computer. The utility model can accurately collect current signals in harsh environment, perform wireless transmission, accurately locate the fault, and improve working efficiency of operation and maintenance of the DC circuit.
Description
Technical field
The utility model relates to a kind of fault location system of DC power transmission line.
Background technology
The DC power transmission line distance, distribute wide, with a varied topography.Under weather extremes and environmental baseline, easier breaking down, and the insulation harm that these faults cause generally do not have obvious marks, is not easy to search.Therefore, how exactly DC power transmission line to be carried out localization of fault, be significant for the operation maintenance work efficiency that improves DC line, and can reduce the loss of outage that brings because of transmission line malfunction.
But the fault-signal (electric current, voltage signal) that existing transmission line malfunction positioning system is gathered exists clutter or insufficient strength, and influences the precision of localization of fault.Simultaneously, positioning system still by wired connection, has increased cost, and has brought bigger inconvenience to maintenance under weather extremes and environmental baseline mostly.Therefore, the uninterrupted research to the direct current transmission line fault positioning system is the direction that the applicant makes great efforts.
Summary of the invention
The purpose of this utility model is to provide a kind of fault location system of DC power transmission line, can under rugged environment, accurately gather current signal, and by GPRS(general packet radio service technology) network carries out wireless transmission, thereby accurately analyze, accurate fault location, the operation maintenance work efficiency of raising DC line.
The technical scheme that realizes above-mentioned purpose is:
A kind of fault location system of DC power transmission line, comprise DC transmission line, some current collecting devices, GPRS communication network and host computer, described each current collecting device connects described DC transmission line respectively, described each current collecting device is the described GPRS communication network of wireless connections respectively, described GPRS communication network connects described host computer
Each current collecting device includes current sensor, operational amplifier, wave filter, A/D(mould/number) converter, MCU(microprocessor), GPRS module and battery pack;
Described current sensor, operational amplifier, wave filter, A/D converter and MCU are connected successively;
Described MCU connects described GPRS module and battery pack respectively;
Described current sensor connects described DC transmission line;
The described GPRS communication network of described GPRS module wireless connections.
The beneficial effects of the utility model are:
The utility model can accurately be gathered current signal by operational amplifier, wave filter in conjunction with current sensor under rugged environment, avoid existing the problem of clutter or insufficient strength, and carry out wireless transmission by GPRS network, thereby accurately analyze, accurate fault location, so that the staff in time arrives in fault in-situ rapidly, improve the efficient of operation maintenance.Simultaneously, the utlity model has simple in structure, safety and stability, advantage such as with low cost.
Description of drawings
Fig. 1 is the structural representation of the fault location system of DC power transmission line of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, the fault location system of DC power transmission line of the present utility model, comprise DC transmission line 1, some current collecting devices 2, GPRS communication network 3 and host computer 4, each current collecting device 2 connects DC transmission line 1 respectively, each current collecting device 2 is wireless connections GPRS communication network 3 respectively, GPRS communication network 3 connects host computer 4, and in the present embodiment, host computer 4 is computing machine;
Each current collecting device 2 includes current sensor 21, operational amplifier 22, wave filter 23, A/D converter 24, MCU25, GPRS module 26 and battery pack 27, wherein:
MCU25 connects GPRS module 26 and battery pack 27 respectively;
MCU25 is to the digital current signal that receives pre-service such as classify, pretreated data are transmitted through GPRS module 26 and GPRS communication network 3, analysed in depth by host computer 4, when confirming to have fault, the place of breaking down on the DC transmission line 1 tunnel is accurately located, so that the staff in time arrives in fault in-situ rapidly, improve the efficient of operation maintenance.
In the present embodiment, the model that MCU25 selects for use is S3F8285XZZ-C0C5; The model that GPRS module 26 is selected for use is AEC-D300.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, do not breaking away under the spirit and scope situation of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (1)
1. the fault location system of a DC power transmission line, it is characterized in that, comprise DC transmission line, some current collecting devices, GPRS communication network and host computer, described each current collecting device connects described DC transmission line respectively, described each current collecting device is the described GPRS communication network of wireless connections respectively, described GPRS communication network connects described host computer
Each current collecting device includes current sensor, operational amplifier, wave filter, A/D converter, MCU, GPRS module and battery pack;
Described current sensor, operational amplifier, wave filter, A/D converter and MCU are connected successively;
Described MCU connects described GPRS module and battery pack respectively;
Described current sensor connects described DC transmission line;
The described GPRS communication network of described GPRS module wireless connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142308 CN203191501U (en) | 2013-03-26 | 2013-03-26 | Fault location system for DC transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142308 CN203191501U (en) | 2013-03-26 | 2013-03-26 | Fault location system for DC transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191501U true CN203191501U (en) | 2013-09-11 |
Family
ID=49108353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320142308 Expired - Lifetime CN203191501U (en) | 2013-03-26 | 2013-03-26 | Fault location system for DC transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191501U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-03-26 CN CN 201320142308 patent/CN203191501U/en not_active Expired - Lifetime
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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |