CN103439562A - Portable stray current tester - Google Patents
Portable stray current tester Download PDFInfo
- Publication number
- CN103439562A CN103439562A CN2013103796225A CN201310379622A CN103439562A CN 103439562 A CN103439562 A CN 103439562A CN 2013103796225 A CN2013103796225 A CN 2013103796225A CN 201310379622 A CN201310379622 A CN 201310379622A CN 103439562 A CN103439562 A CN 103439562A
- Authority
- CN
- China
- Prior art keywords
- tester
- stray current
- portable
- voltage
- potential
- 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
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Disclosed is a portable stray current tester. The portable stray current tester is used for collecting the potential difference (contact voltage) from a traction steel rail to a structural steel bar and the potential difference (reference potential) from a reference electrode to the structural steel bar in real time; the maximum half-hour contact voltage is calculated in the train running period; the half-hour average value of a polarization potential is calculated; communications between the tester and a signal adaptor and communications between the tester and a monitoring device are carried out to receive commands sent by the signal adaptor and the tester, and data are uploaded to the signal adaptor and the tester. The portable stray current tester can be widely applied to an urban rail transit stray current protection system. Measurement signals are converted to digital quantities from analog quantities through switching circuits like processing circuits and AD converter circuits, and the digital quantities are collected by a CPU to carry out corresponding calculation and are stored. Two measurable parameters are a reference voltage and a steel rail voltage.
Description
Technical field
The present invention relates to a kind of automatic control equipment, special for being urban track traffic a kind of tester of indicating stray current, electric current to exist in service.
Background technology
Each big city of China is all at newly-built and enlarging city rail traffic route at present.Urban track traffic is when bringing convenience to people's lives, and also band is served the problem can not be ignored, and the stray current corrosion plant issue that the urban track traffic run duration produces is exactly one.The existence of stray current, produce galvanic corrosion to metal pipe lines such as the telecommunication cable buried underground in subway (or light rail) surrounding soil, steel pipe in running tunnel, reinforcing bars, destroys its intensity, reduces its life-span.It is very difficult being keeped in repair and change the xoncrete structure damaged because of stray current corrosion, has not only affected traffic circulation, also will expend a large amount of manpower and materials simultaneously.
In order to realize that Stray Current in Urban Rail Transit is monitored automatically, safety, the reliability service of urban track traffic had great importance; The portable stray current tester of the present invention to the correlation parameter of the relevant stray current of urban track traffic run duration automatically monitor, real-time report, and the storage Monitoring Data.When the abnormal conditions such as the stray current correlation parameter exceeds standard occurring, automatically upload warning message, remind staff on duty to note and take the respective handling measure by host computer, ensure the safe and reliable operation of urban track traffic.
In order to address the above problem, the present invention is achieved by the following technical solutions: portable stray current tester for Real-time Collection traction rail to the potential difference (PD) (touch voltage) of structure reinforcing bars, contrast electrode the potential difference (PD) (reference potential) to structure reinforcing bars; Calculate maximal value half an hour of train run duration touch voltage; Calculate mean value half an hour of polarized potential; With signal adapter, monitoring device, communicate, the order that reception signal adapter, tester send, to signal adapter, tester uploading data.Portable stray current tester can be widely used in the Stray Current in Urban Rail Transit guard system.Each measuring-signal, through translation circuits such as conditioning, AD conversions, is converted to digital quantity by analog quantity, and CPU carries out corresponding calculating by the digital quantity gathered, and storage.Its measurable parameter has 2: reference voltage, rail structure voltage.
The principal feature of the portable stray current tester of the present invention:
1. dual-cpu structure, image data speed is fast, basically can accomplish synchronized sampling.Low in energy consumption in its use procedure, open power consumption 5V, 300-~ 400mA in the display situation, do not open power consumption 5V, 100 in the display situation ~-200mA;
2. 20 paths gather entirely, the compressed processing of data, and storage file size hourly is only 0.6MB.Adopt the 2G storage card, can store the approximately data of 4 months;
3. adopt many powering modes:
A. optional alternating current 220V power supply;
B. the mobile digital power supply companion of optional USB interface, its capacity, generally at 8000-16000mAh, can make tester work approximately 48 hours;
C. optional 12V accumulator, the general 20Ah of capacity, can make tester work approximately 100 hours (closing in the display situation)
4. device adopts suitcase structure, easy to carry.
The accompanying drawing explanation
The schematic diagram that accompanying drawing 1 is this tester.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the portable stray current tester of the present invention adopts dual-CPU system, gathers the voltage signal of contrast electrode 0-15, drainage net, rail 0-3 by testing clamp.Voltage signal is simulating signal by signal condition by the signal no-load voltage ratio, simulating signal is converted to digital signal after by analog to digital conversion # 0, #1, now signal is by translation circuits such as CPU# 0 and each measuring-signal process conditioning of CPU# 1, AD conversions, be converted to digital quantity by analog quantity, by the digital quantity gathered, carry out corresponding calculating storage.The external RS485 interface of CPU# 0, for 485 communications, CPU# 1 circumscribed USB interface, for Function Extension.The external demonstration of CPU# 1, feed back for information simultaneously.
Claims (3)
1. a portable stray current tester, it is characterized in that Real-time Collection traction rail to the potential difference (PD) (touch voltage) of structure reinforcing bars, contrast electrode the potential difference (PD) (reference potential) to structure reinforcing bars; Calculate maximal value half an hour of train run duration touch voltage; Calculate mean value half an hour of polarized potential; With signal adapter, monitoring device, communicate, the order that reception signal adapter, tester send, to signal adapter tester uploading data.
2. portable stray current tester according to claim 1, is characterized in that each measuring-signal, through translation circuits such as conditioning, AD conversions, is converted to digital quantity by analog quantity, and CPU carries out corresponding calculating storage through the digital quantity gathered.
3. measuring-signal according to claim 2, is characterized in that measurable parameter has 2: reference voltage, rail structure voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103796225A CN103439562A (en) | 2013-08-28 | 2013-08-28 | Portable stray current tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103796225A CN103439562A (en) | 2013-08-28 | 2013-08-28 | Portable stray current tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103439562A true CN103439562A (en) | 2013-12-11 |
Family
ID=49693267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103796225A Pending CN103439562A (en) | 2013-08-28 | 2013-08-28 | Portable stray current tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103439562A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144772A (en) * | 2017-06-01 | 2017-09-08 | 西南交通大学 | A kind of subway closed guard gate and rail insulating mounting method for testing performance |
| CN108562782A (en) * | 2018-07-17 | 2018-09-21 | 国网湖南省电力有限公司 | A kind of acquisition methods of stray electrical current and the detecting system of stray electrical current |
| CN113281563A (en) * | 2021-04-27 | 2021-08-20 | 山东轨道交通研究院有限公司 | Urban rail transit traction power supply comprehensive monitoring protection device |
| CN115616281A (en) * | 2022-10-21 | 2023-01-17 | 广州普迩太科技有限公司 | uDL2 stray current tester and detection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309574Y (en) * | 1997-08-12 | 1999-03-03 | 中国科学院金属腐蚀与防护研究所 | Portable intelligent stray current measuring apparatus |
| KR100537899B1 (en) * | 2003-11-07 | 2005-12-21 | 한국전기연구원 | Data logger apparatus for measurement stray current of subway and power line |
| CN101226682A (en) * | 2007-01-19 | 2008-07-23 | 同济大学 | Device for monitoring stray current of novel subway |
| CN102590600A (en) * | 2012-01-06 | 2012-07-18 | 徐州润泽电气有限公司 | Stray current sensor of subway reflux system |
-
2013
- 2013-08-28 CN CN2013103796225A patent/CN103439562A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309574Y (en) * | 1997-08-12 | 1999-03-03 | 中国科学院金属腐蚀与防护研究所 | Portable intelligent stray current measuring apparatus |
| KR100537899B1 (en) * | 2003-11-07 | 2005-12-21 | 한국전기연구원 | Data logger apparatus for measurement stray current of subway and power line |
| CN101226682A (en) * | 2007-01-19 | 2008-07-23 | 同济大学 | Device for monitoring stray current of novel subway |
| CN102590600A (en) * | 2012-01-06 | 2012-07-18 | 徐州润泽电气有限公司 | Stray current sensor of subway reflux system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144772A (en) * | 2017-06-01 | 2017-09-08 | 西南交通大学 | A kind of subway closed guard gate and rail insulating mounting method for testing performance |
| CN107144772B (en) * | 2017-06-01 | 2019-05-10 | 西南交通大学 | A kind of subway closed guard gate and rail are insulated method for testing performance |
| CN108562782A (en) * | 2018-07-17 | 2018-09-21 | 国网湖南省电力有限公司 | A kind of acquisition methods of stray electrical current and the detecting system of stray electrical current |
| CN108562782B (en) * | 2018-07-17 | 2020-06-16 | 国网湖南省电力有限公司 | Stray current acquisition method and stray current detection system |
| CN113281563A (en) * | 2021-04-27 | 2021-08-20 | 山东轨道交通研究院有限公司 | Urban rail transit traction power supply comprehensive monitoring protection device |
| CN115616281A (en) * | 2022-10-21 | 2023-01-17 | 广州普迩太科技有限公司 | uDL2 stray current tester and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204256042U (en) | A kind of for line loss and monitoring analysis system of opposing electricity-stealing | |
| CN203350392U (en) | Fault locating system for high tension transmission line | |
| CN203572887U (en) | Wireless three dimensional electric field measurement alarm device | |
| CN102508018B (en) | Stray current monitoring and protecting device and method | |
| CN206658103U (en) | The Check System of low voltage power distribution network leakage current based on Internet of Things | |
| CN103439562A (en) | Portable stray current tester | |
| CN204536448U (en) | A kind of high voltage supply leakage conductor wireless monitoring device | |
| CN203149775U (en) | Real-time monitoring and early-warning system based on sensing detection and video detection for debris flow | |
| CN103260263A (en) | Metro stray current wireless monitoring system and method | |
| CN202731994U (en) | Coal mine tunnel top layer pressure detecting system | |
| CN207731456U (en) | Mountain landslide supervision warning device and system | |
| CN204925275U (en) | Railway signal lightning protection device thunder and lightning integrated monitoring system | |
| CN104052154A (en) | Transformer substation secondary device state monitoring system | |
| CN205229000U (en) | City haze monitoring system based on GPRS | |
| CN209433254U (en) | Foundation pit wells group dewatering wireless intelligent management system | |
| CN203630917U (en) | Multimode remote monitoring and warning system for mud-rock flow | |
| CN211206615U (en) | Monitoring device for stray current | |
| CN204101623U (en) | Intelligence monitoring of stray current sensor | |
| CN204287436U (en) | A kind of battery monitoring system | |
| CN203365600U (en) | Branch contact network fault positioning system | |
| CN209327479U (en) | A kind of current leakage detection system based on power grid | |
| CN202584404U (en) | Wireless water meter acquisition and control device | |
| CN203911580U (en) | Remote intelligent environment monitoring alarm device for electric power equipment | |
| KR20130016890A (en) | On line monitoring system of underground utility | |
| CN208366310U (en) | A kind of mass presdiction and disaster prevention crack detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131211 |