CN203909212U - Power distribution network line fault indicator - Google Patents
Power distribution network line fault indicator Download PDFInfo
- Publication number
- CN203909212U CN203909212U CN201420065656.7U CN201420065656U CN203909212U CN 203909212 U CN203909212 U CN 203909212U CN 201420065656 U CN201420065656 U CN 201420065656U CN 203909212 U CN203909212 U CN 203909212U
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- distribution network
- fault indicator
- network line
- line fault
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Abstract
The utility model provides a power distribution network line fault indicator. The power distribution network line fault indicator comprises a housing and a fault indicator host. The fault indicator host is arranged in the housing. A surface of the housing is equipped with a fault indicating lamp, a board turning device and a display. The fault indicator host includes a single-chip microcomputer unit, a current collection unit, a filter unit, and an AD conversion unit. The current collection unit is connected with the filter unit. The filter unit is connected with the AD conversion unit. The AD conversion unit is connected with the single-chip microcomputer. The power distribution network line fault indicator is reasonable in design and low in power consumption, is convenient to use, enables workers in a monitoring center to concretely know which section breaks down, and helps to greatly shorten the fault correcting time and reduce the workload of the workers.
Description
Technical field
The utility model is specifically related to a kind of distribution network line fault indicator.
Background technology
Along with China's expanding economy, people are more and more higher to the requirement of power distribution network safe operation, and the Real-Time Monitoring of power distribution network receives on-the-spot concern day by day.At present most of Medial & Low Voltage Power Network, particularly 10KV distribution network of China, operation and management level, monitoring means are lower; At present both economical is also that method is to hang conventional fault indicator along circuit more accurately, and the fault detector in the time breaking down on power supply survey line road, trouble spot turns over red; When the staff of transformer station finds that there is fault, check fault detector state along circuit, thus the localization of faults; Although this conventional fault indicator can more accurately indicate fault section, but need staff to check indicator board turning state along the line, labor strength is larger, especially for the distribution line in some mountain areas, checks that indicator status is a very arduous thing along the line.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, and a kind of distribution network line fault indicator is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of distribution network line fault indicator, comprise housing and fault detector main frame, fault detector main frame is in enclosure interior, described surface of shell has malfunction indicator lamp, card-turner and display, described fault detector main frame comprises single machine unit, current acquisition unit, filter unit and AD converting unit, current acquisition unit connects filter unit, and filter unit connects AD converting unit, and AD converting unit connects single machine unit.
The utility model also has some technical characterictics like this:
1. the single machine unit described in comprises current detecting unit, communication unit, liquid crystal display, power supply unit, keyboard unit, board turning unit, LED unit and singlechip chip, and singlechip chip is connected with current detecting unit, communication unit, power supply unit, keyboard unit, board turning unit and LED unit respectively.
2. the singlechip chip described in adopts ATmega32L singlechip chip.
3. the AD converting unit described in adopts TLC1543AD conversion chip.
4. the communication unit described in adopts RS232 bus transfer.
The utlity model has following useful effect:
The utility model is reasonable in design, easy to use, low in energy consumption, makes staff just can understand specifically that section in Surveillance center fault has occurred; Can greatly improve the time that shortens fault restoration and the labour intensity that reduces workman.
Brief description of the drawings
Fig. 1 is surface structure schematic diagram of the present utility model;
Fig. 2 is structure principle chart of the present utility model;
Fig. 3 is single machine unit schematic diagram of the present utility model;
Fig. 4 is current acquisition cell schematics of the present utility model;
Fig. 5 is filter unit schematic diagram of the present utility model;
Fig. 6 is AD converting unit schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
Embodiment 1
A kind of distribution network line fault indicator, comprises housing 4 and fault detector main frame, and fault detector main frame is in housing 4 inside, and there is malfunction indicator lamp 1 on described housing 4 surfaces, card-turner 3 and display 2, described fault detector main frame comprises single machine unit 8, current acquisition unit 5, filter unit 6 and AD converting unit 7, current acquisition unit 5 connects filter unit 6, and filter unit 6 connects AD converting unit 7, and AD converting unit 7 connects single machine unit 8, and described single machine unit 8 comprises current detecting unit 10, communication unit 11, liquid crystal display 2, power supply unit 12, keyboard unit 13, board turning unit 3, LED unit 1 and singlechip chip 9, singlechip chip 9 respectively with current detecting unit 10, communication unit 11, power supply unit 12, keyboard unit 13, board turning unit 3 is connected with LED unit 1, described singlechip chip 9 adopts ATmega32L singlechip chip, described AD converting unit 7 adopts TLC1543AD conversion chip, described communication unit 11 adopts RS232 bus transfer, malfunction indicator lamp 1 is LED unit 1, card-turner 3 is board turning unit 3, and display is liquid crystal display.
Embodiment 2
Fault detector principle: taking AVR single chip computer AT mega32L as core, this single-chip microcomputer has low-power consumption function, under standby mode, its working current is less than 10 μ A; This single-chip microcomputer itself has the EEPROM of 10 A/D converters and 512 bytes, can simplify the circuit design of whole device.This device, by high-capacity dry battery and line influence electric current cooperated power supply, is measured line current one time every half an hour under normal circumstances, then by communication unit, measurement data is sent to monitoring host computer; In the time of line failure, line short and earth fault measurement module measure earth fault in time, and send look-at-me to single-chip microcomputer, single-chip microcomputer response is interrupted, failure judgement type, then single-chip microcomputer is organized failure message, and by communication unit, failure message is sent to monitoring host computer, like this, make staff just can understand the working condition of whole power distribution network in Surveillance center.
Embodiment 3
Current detecting unit: the method for measuring circuit electric current is to place electromagnetic induction coil in fault detector, its induction output voltage is directly proportional to line current, this coil output induced voltage is become discrete digital quantity by single-chip microcomputer inside, calculates the load current value of circuit by semiperiod integral algorithm.
Filter unit: for input voltage is declined with rapid rate more at high band, improve filter effect, adopt the second-order active filter circuit that has added single order RC low-pass filter.
AD converting unit: adopt TLC1543AD conversion chip, adopt serial communication interface, built-in sample & hold circuit, has synchronous clock function.
Claims (5)
1. a distribution network line fault indicator, comprise housing and fault detector main frame, it is characterized in that: fault detector main frame is in enclosure interior, described surface of shell has malfunction indicator lamp, card-turner and display, described fault detector main frame comprises single machine unit, current acquisition unit, filter unit and AD converting unit, current acquisition unit connects filter unit, and filter unit connects AD converting unit, and AD converting unit connects single machine unit.
2. a kind of distribution network line fault indicator as claimed in claim 1, it is characterized in that: described single machine unit comprises current detecting unit, communication unit, liquid crystal display, power supply unit, keyboard unit, board turning unit, LED unit and singlechip chip, singlechip chip is connected with current detecting unit, communication unit, power supply unit, keyboard unit, board turning unit and LED unit respectively.
3. a kind of distribution network line fault indicator as claimed in claim 1, is characterized in that: described singlechip chip adopts ATmega32L singlechip chip.
4. a kind of distribution network line fault indicator as claimed in claim 1, is characterized in that: described AD converting unit adopts TLC1543AD conversion chip.
5. a kind of distribution network line fault indicator as claimed in claim 1, is characterized in that: described communication unit adopts RS232 bus transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065656.7U CN203909212U (en) | 2014-02-13 | 2014-02-13 | Power distribution network line fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065656.7U CN203909212U (en) | 2014-02-13 | 2014-02-13 | Power distribution network line fault indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909212U true CN203909212U (en) | 2014-10-29 |
Family
ID=51783474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065656.7U Expired - Fee Related CN203909212U (en) | 2014-02-13 | 2014-02-13 | Power distribution network line fault indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490747A (en) * | 2016-06-13 | 2017-12-19 | 光科技股份有限公司 | A kind of distribution line state monitoring method and corresponding monitoring instruction device |
| CN111175562A (en) * | 2019-12-31 | 2020-05-19 | 常州瑞莱博自动化科技有限公司 | Bistable liquid crystal current indicator |
-
2014
- 2014-02-13 CN CN201420065656.7U patent/CN203909212U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490747A (en) * | 2016-06-13 | 2017-12-19 | 光科技股份有限公司 | A kind of distribution line state monitoring method and corresponding monitoring instruction device |
| CN111175562A (en) * | 2019-12-31 | 2020-05-19 | 常州瑞莱博自动化科技有限公司 | Bistable liquid crystal current indicator |
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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: 20141029 Termination date: 20180213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |