CN202421376U - Cable protective layer protector detecting device - Google Patents
Cable protective layer protector detecting device Download PDFInfo
- Publication number
- CN202421376U CN202421376U CN 201120565723 CN201120565723U CN202421376U CN 202421376 U CN202421376 U CN 202421376U CN 201120565723 CN201120565723 CN 201120565723 CN 201120565723 U CN201120565723 U CN 201120565723U CN 202421376 U CN202421376 U CN 202421376U
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- protective layer
- layer protector
- signal processing
- cable
- processing unit
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- Expired - Lifetime
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Abstract
The utility model relates to the technical field of railway traction power supply systems, in particular to a cable protective layer protector detecting device capable of detecting resistive current and surface leakage current of a protective layer protector. The cable protective layer protector detecting device comprises a current sensor which is connected to a protective layer protector grounding end in series, wherein the current sensor is connected with a signal processing unit by a cable; an output end of the signal processing unit is connected with a data bus; and the data bus is connected with a monitoring master machine. According to the utility model, main performance parameters of the protective layer protector can be online detected and equipment state is judged by a corresponding expert diagnosis system; therefore, reference information is provided to operation maintenance personnel; and cable burning loss and damage to maintenance personnel are effectively prevented.
Description
Technical field
The utility model relates to the railway traction power supply system technical field, is specifically related to a kind ofly can detect the current in resistance property of sheath protector and the cable protective layer protector pick-up unit of surperficial Leakage Current.
Background technology
At present cable cover(ing) generally adopts the zinc oxide valve plate sheath protector, in the long-time running process, causes internal wetted or valve block owing to device structure is poorly sealed and wears out and cause that insulating property progressively reduce.The current in resistance property of equipment and Leakage Current can obviously increase, and be in service normally, can only be through simple visual examination, and whether there is crack etc. to safeguard sheath protector like insulator scrubbing, surface.When superpotential or power frequency short circuit; Can cause the zinc oxide valve plate thermal runaway and damage; If can not in time find and change the fault sheath protector, may cause the cable line scaling loss, and can bring threat to operation maintenance personnel's personal safety because of the protection that loses sheath protector.
Summary of the invention
The purpose of the utility model is in order to address the above problem, and a kind of current in resistance property of measuring sheath protector and the problem of surperficial Leakage Current, cable protective layer protector pick-up unit of go forward side by side line data analysis and processing of solving is provided.
For realizing above-mentioned purpose; The cable protective layer protector pick-up unit of the utility model design; Comprise the current sensor that is connected in series in the sheath protector earth terminal; Said current sensor is connected with signal processing unit through cable, and said signal processing unit output terminal is connected with data bus, and said data bus is connected to monitoring host computer.
In technique scheme, said signal processing unit comprises signal amplifier, wave filter and the A/D converter that is connected in series successively.
In technique scheme, said signal processing unit 3 is provided with the RS-485 communication interface, and said signal processing unit output terminal connects data bus through the RS-485 communication interface.
In technique scheme, be provided with data processor and data-carrier store in the said monitoring host computer.
In technique scheme, said monitoring host computer is connected with display.
The utility model is gathered Leakage Current and current in resistance property in real time at sheath protector earth terminal series current sensor, utilizes the pre-process unit to accomplish signal amplification, filtering, analog to digital conversion; And through communication computer mainboard completion program and digital processing; Reserve the RS-485 communication interface at signal processing unit, be connected to the background monitoring main frame, accomplish the storage and the processing of data through data bus; The detection of online completion sheath protector Specifeca tion speeification; And accomplish the judgement of equipment state through corresponding expert diagnostic system, and reference information is provided for the operation maintenance personnel, effectively prevent the cable scaling loss and to maintainer's injury.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the circuit block diagram of the signal processing unit of the utility model;
Among the figure: 1, sheath protector; 2, current sensor; 3, signal processing unit (3.1, signal amplifier; 3.2, wave filter; 3.3, A/D converter); 4, data bus; 5, monitoring host computer; 6, display; 7, RS-485 line.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail:
Cable protective layer protector pick-up unit as shown in Figure 1; Comprise the current sensor 2 that is connected in series in sheath protector 1 earth terminal; Current sensor 2 is connected with signal processing unit 3 through cable, and signal processing unit 3 output terminals are connected with data bus 4, and data bus 4 is connected to monitoring host computer 5.
Consult shown in Figure 2ly, signal processing unit 3 comprises signal amplifier 3.1, wave filter 3.2 and the A/D converter 3.3 that is connected in series successively.
The utility model is connected in series in sheath protector 1 earth terminal with current sensor 2; Monitor the current in resistance property and the surperficial Leakage Current of sheath protector in real time; And, transferring to monitoring host computer 5 through data bus through after signal processing and amplifying, signal filtering processing, the analog-to-digital conversion process, the communication computer mainboard in the monitoring host computer 5 is accomplished program and digital processing; Set up storage and monitoring system; Can realize the prediction and the judgement of cable protective layer protector state rapidly, and accomplish the judgement of equipment state through corresponding expert diagnostic system preset in the monitoring host computer 5
Leakage Current that realization will be gathered in real time and current in resistance property also regularly store in self storer; In display, show in real time Leakage Current and current in resistance property, can also inquire about the incident of transfiniting and historical data, reference information is provided for the operation maintenance personnel, effectively prevent the cable scaling loss and maintainer's injury.
The content that this instructions is not done to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (5)
1. cable protective layer protector pick-up unit; It is characterized in that: comprise the current sensor that is connected in series in the sheath protector earth terminal; Said current sensor is connected with signal processing unit through cable; Said signal processing unit output terminal is connected with data bus, and said data bus is connected to monitoring host computer.
2. cable protective layer protector pick-up unit according to claim 1 is characterized in that: said signal processing unit comprises signal amplifier, wave filter and the A/D converter that is connected in series successively.
3. cable protective layer protector pick-up unit according to claim 1 is characterized in that: said signal processing unit (3) is provided with the RS-485 communication interface, and said signal processing unit output terminal connects data bus through the RS-485 communication interface.
4. cable protective layer protector pick-up unit according to claim 1 is characterized in that: be provided with data processor and data-carrier store in the said monitoring host computer.
5. cable protective layer protector pick-up unit according to claim 1 is characterized in that: said monitoring host computer is connected with display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120565723 CN202421376U (en) | 2011-12-30 | 2011-12-30 | Cable protective layer protector detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120565723 CN202421376U (en) | 2011-12-30 | 2011-12-30 | Cable protective layer protector detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421376U true CN202421376U (en) | 2012-09-05 |
Family
ID=46746128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120565723 Expired - Lifetime CN202421376U (en) | 2011-12-30 | 2011-12-30 | Cable protective layer protector detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421376U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926493A (en) * | 2014-04-28 | 2014-07-16 | 四川西南不锈钢有限责任公司 | Monitoring method and device for high-voltage single conductor cable sheath protector |
| CN104104029A (en) * | 2014-06-18 | 2014-10-15 | 国家电网公司 | Multifunctional high-voltage cable earthing device capable of monitoring load state |
| CN109613419A (en) * | 2019-01-23 | 2019-04-12 | 天津津铁博瑞科技有限公司 | Shield voltage limiter monitors system |
| EP4067916A1 (en) * | 2021-03-29 | 2022-10-05 | Nexans | Sheath voltage limiter (svl) integrity monitoring |
-
2011
- 2011-12-30 CN CN 201120565723 patent/CN202421376U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926493A (en) * | 2014-04-28 | 2014-07-16 | 四川西南不锈钢有限责任公司 | Monitoring method and device for high-voltage single conductor cable sheath protector |
| CN104104029A (en) * | 2014-06-18 | 2014-10-15 | 国家电网公司 | Multifunctional high-voltage cable earthing device capable of monitoring load state |
| CN104104029B (en) * | 2014-06-18 | 2016-10-19 | 国家电网公司 | A kind of multifunctional grounded device of high tension cable monitoring load condition |
| CN109613419A (en) * | 2019-01-23 | 2019-04-12 | 天津津铁博瑞科技有限公司 | Shield voltage limiter monitors system |
| EP4067916A1 (en) * | 2021-03-29 | 2022-10-05 | Nexans | Sheath voltage limiter (svl) integrity monitoring |
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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 |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |