CN204228889U - Single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system - Google Patents
Single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system Download PDFInfo
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- CN204228889U CN204228889U CN201420754463.2U CN201420754463U CN204228889U CN 204228889 U CN204228889 U CN 204228889U CN 201420754463 U CN201420754463 U CN 201420754463U CN 204228889 U CN204228889 U CN 204228889U
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- tension cable
- chip microcomputer
- armour
- screen
- monitoring system
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Abstract
The utility model discloses a kind of high-tension cable screen armour ground connection on-line intelligence monitoring system, comprise the current detection sensor for detecting described high-tension cable screen armour ground wire electric current, described current detection sensor signal output part is connected with single-chip microcomputer signal input part, and described single-chip microcomputer output control terminal is connected with wireless launcher input control end; Described high-tension cable is set with power taking current transformer, described power taking current transformer output terminal is connected with super capacitor C positive pole by rectifying and wave-filtering voltage stabilizer, described super capacitor C positive pole is connected with charge in batteries end, and described accumulator output end is connected with the power input of described wireless launcher, single-chip microcomputer respectively.The utility model advantage is to monitor the screen armour metal sheath electric current of described high-tension cable by real-time continuous, realize the early discovery of high-tension cable fault, early early warning, early process, fundamentally avoid the generation of high-tension cable fault, ensure the operation that high-tension cable is safe and reliable.
Description
Technical field
The utility model relates to traction substation of electric railway high-tension cable grounding monitor, especially relates to single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system.
Background technology
Current, in the high speed railway construction of China, overpass occupies very large proportion in the line, traction substation of electric railway, subregion booth, AT(autotransformer) multidigit such as distribution substation is under bridge, because the supply line of drawing traction substation should not adopt overhead bare conductor, adopt 27.5KV high voltage single-core cable feeder line along line arrangement to electric phase-splitting joint online so more.
Due to the reason such as construction and installation defect, product quality are bad and operation maintenance is improper, there is the cause power failure number of times of accident of breakdown fault and roll up in above-mentioned high voltage single-core cable feeder line, bring great challenge to the operation stability of high-speed railway and power supply reliability within designed life.The conventional preventive trial of high voltage single-core cable feeder line is regular according to plan carries out power failure test to circuit, but existing pilot project is not only difficult to ensure that circuit does not break down after the tests, even may introduce in test new hidden danger (such as: DC voltage withstand test and AC voltage withstand test all may cause damage to cable insulation).Along with high voltage single-core cable feeder line widely using in tractive power supply system, traditional periodic detection test method can not Timeliness coverage electric cable stoppage, and cable is once break down, search difficulty large, processing time is long, and coverage is large, produces cause heavy losses to transportation by railroad.
Summary of the invention
The utility model object is to provide a kind of single-core high-voltage cable to shield armour ground connection on-line intelligence monitoring system.
For achieving the above object, the utility model takes following technical proposals:
High-tension cable screen armour ground connection on-line intelligence monitoring system described in the utility model, comprise the current detection sensor for detecting described high-tension cable screen armour ground wire electric current, described current detection sensor signal output part is connected with single-chip microcomputer signal input part, and described single-chip microcomputer output control terminal is connected with wireless launcher input control end; Described high-tension cable is set with power taking current transformer, described power taking current transformer output terminal is connected with super capacitor C positive pole by rectifying and wave-filtering voltage stabilizer, described super capacitor C positive pole is connected with charge in batteries end, and described accumulator output end is connected with the power input of described wireless launcher, single-chip microcomputer respectively.
The utility model advantage is to monitor the screen armour metal sheath electric current of described high-tension cable by real-time continuous, the fault trend of analyses and prediction high-tension cable, if high-tension cable police circles that damaged or insulation is down to setting occurs when being worth, failure message is sent to information early warning platform by described wireless launcher by described single-chip microcomputer.Maintenance personal can process fault high-tension cable in time, realizes the early discovery of high-tension cable fault, early early warning, early process, fundamentally avoids the generation of high-tension cable fault, ensured the operation that high-tension cable is safe and reliable.
Accompanying drawing explanation
Fig. 1 is the circuit principle structure figure of system described in the utility model.
Embodiment
As shown in Figure 1, high-tension cable screen armour ground connection on-line intelligence monitoring system described in the utility model, comprise the current detection sensor 3 for detecting described high-tension cable screen armour 1 ground wire 2 electric current, current detection sensor 3 signal output part is connected with single-chip microcomputer 4 signal input part, and single-chip microcomputer 4 output control terminal is connected with wireless launcher 5 input control end; High-tension cable 6 is set with power taking current transformer 7, power taking current transformer 7 output terminal is connected with super capacitor C positive pole by rectifying and wave-filtering voltage stabilizer 8, super capacitor C positive pole is connected with accumulator 9 charging end, and accumulator 9 output terminal is connected with the power input of described wireless launcher 5, single-chip microcomputer 4 respectively.
Utility model works principle is summarized as follows:
Power taking current transformer 7 is responsible for from induction current high-tension cable 6, charges, for native system provides electric energy to super capacitor C.Adopt power taking current transformer 7 to provide electric energy for native system, mainly consider long service life and the little needs of maintenance workload, because sunkissed restriction under railway bridge, photovoltaic solar panel is inapplicable; The object of super capacitor C reduces induction current to impact the charging current of accumulator 9.
When high-tension cable screen armour 1 destruction is short-circuited fault, such as, in Fig. 1 during A point destroyed generation earth fault, the closed-loop path will formed as shown in phantom in Figure 1 between A point and the ground wire 2 of screen armour 1, now the induction current of current detection sensor 3 be far longer than normal unearthed time electric current, now single-chip microcomputer by failure message by wireless launcher be sent to information early warning platform report to the police.
Claims (1)
1. a high-tension cable screen armour ground connection on-line intelligence monitoring system, it is characterized in that: comprise the current detection sensor (3) for detecting described high-tension cable screen armour (1) ground wire (2) electric current, described current detection sensor (3) signal output part is connected with single-chip microcomputer (4) signal input part, and described single-chip microcomputer (4) output control terminal is connected with wireless launcher (5) input control end; Described high-tension cable (6) is set with power taking current transformer (7), described power taking current transformer (7) output terminal is connected with super capacitor C positive pole by rectifying and wave-filtering voltage stabilizer (8), described super capacitor C positive pole is connected with accumulator (9) charging end, and described accumulator (9) output terminal is connected with the power input of described wireless launcher (5), single-chip microcomputer (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754463.2U CN204228889U (en) | 2014-12-05 | 2014-12-05 | Single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754463.2U CN204228889U (en) | 2014-12-05 | 2014-12-05 | Single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204228889U true CN204228889U (en) | 2015-03-25 |
Family
ID=52926969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420754463.2U Expired - Fee Related CN204228889U (en) | 2014-12-05 | 2014-12-05 | Single-core high-voltage cable screen armour ground connection on-line intelligence monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204228889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445633A (en) * | 2015-12-24 | 2016-03-30 | 浙江中电智能科技有限公司 | High-voltage cable protective layer loop current multi-state monitoring device |
| CN113625196A (en) * | 2021-06-18 | 2021-11-09 | 国网浙江省电力有限公司杭州供电公司 | Transformer winding distributed direct current magnetic biasing monitoring system |
-
2014
- 2014-12-05 CN CN201420754463.2U patent/CN204228889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445633A (en) * | 2015-12-24 | 2016-03-30 | 浙江中电智能科技有限公司 | High-voltage cable protective layer loop current multi-state monitoring device |
| CN113625196A (en) * | 2021-06-18 | 2021-11-09 | 国网浙江省电力有限公司杭州供电公司 | Transformer winding distributed direct current magnetic biasing monitoring system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20161205 |