CN204575733U - A kind of high-tension cable sheath grounding current on-line monitoring system - Google Patents
A kind of high-tension cable sheath grounding current on-line monitoring system Download PDFInfo
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- CN204575733U CN204575733U CN201520191600.0U CN201520191600U CN204575733U CN 204575733 U CN204575733 U CN 204575733U CN 201520191600 U CN201520191600 U CN 201520191600U CN 204575733 U CN204575733 U CN 204575733U
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Abstract
The utility model relates to a kind of power monitoring system, belongs to energy monitoring apparatus field, is specifically related to a kind of high-tension cable sheath grounding current on-line monitoring system.Comprise: the server that sample devices, sample devices are connected, sample devices comprises: ground wire current measuring transformer, main push-towing rope current measuring transformer, for current signal being transferred to the sampling module of digital signal, described sampling module is connected with server.Therefore, the utility model tool has the following advantages: 1. utilize ring current method collection and measure ground wire electric current and main push-towing rope current effective value, and transfers data to remote computer backstage and carry out analyzing and processing, thus Timeliness coverage cable current and equipment shape different; 2. there is power mode and communication modes flexibly, power of alterating and direct current and cable induction way to take power can be adopted, support wired and wireless several data transmission mode.
Description
Technical field
The utility model relates to a kind of power monitoring system, belongs to energy monitoring apparatus field, is specifically related to a kind of high-tension cable sheath grounding current on-line monitoring system.
Background technology
The task of power cable on-line monitoring and diagnosis understands cable insulation state; comprise and adopt various detection, measurement, supervision, analysis and method of discrimination, the history and current situation of coupling system, consider environmental factor; cable insulation state is assessed, judges that it is in normal or abnomal condition.And state is shown and record, warning is sent to abnormality, so that operations staff processes in time.Simultaneously for the insulation assessment of equipment, reasonable employment and trouble free service provide information and basic data.
Along with the high speed development of power grid construction, the use of power cable is more and more extensive, will get more and more to the demand that performance monitoring and the historical data of newly-built cable are collected.Meanwhile, the early stage cable laid has arrived normal tenure of use now successively, and the Insulation Problems of cable will increase day by day, and therefore electric system needs a set of perfect cable performance monitoring system, and grounding circulation on-Line Monitor Device is exactly one of them.
Utility model content
The utility model mainly solves the problems referred to above existing for prior art, provides a kind of high-tension cable sheath grounding current on-line monitoring system.This system utilizes ring current method collection and measures ground wire electric current and main push-towing rope current effective value, and transfers data to remote computer backstage and carry out analyzing and processing, thus Timeliness coverage cable current and equipment shape abnormal; Meanwhile, this system has power mode and communication modes flexibly, not only can adopt power of alterating and direct current, can also adopt cable induction way to take power, and supports wired and wireless several data transmission mode.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals:
A kind of high-tension cable sheath grounding current on-line monitoring system, comprise: work hard a sample devices being installed on high-tension cable side respectively and the server be connected with sample devices, wherein said sample devices comprises: be placed on the ground wire current measuring transformer on described high-tension cable sheath ground wire; The sampling module for current signal being transferred to digital signal be connected with described ground wire current measuring transformer, described sampling module is connected with described server.
Optimize, above-mentioned a kind of high-tension cable sheath grounding current on-line monitoring system, described sample devices also comprises: be placed on the main push-towing rope current measuring transformer on described high-tension cable, and described main push-towing rope current measuring transformer is connected with described sampling module.
Optimize; above-mentioned a kind of high-tension cable sheath grounding current on-line monitoring system; also comprise draw-out power supply device; this draw-out power supply device comprises: be socketed on transmission line of electricity get can mutual inductor; this is got and can regulate protection circuit with rectifier filer, power taking successively, isolates voltage stabilizer and be connected by mutual inductor, and the described output terminal of isolation voltage stabilizer is connected with the power input of sample devices.
Optimize, above-mentioned a kind of high-tension cable sheath grounding current on-line monitoring system, also comprises a super capacitor C be connected with draw-out power supply device output terminal, and this super capacitor C is connected with the power input of sample devices by a DC/DC converter.
Therefore, the utility model tool has the following advantages: 1. this system utilizes ring current method collection and measures ground wire electric current and main push-towing rope current effective value, and transfers data to remote computer backstage and carry out analyzing and processing, thus Timeliness coverage cable current and equipment shape different; 2. there is power mode and communication modes flexibly, not only can adopt power of alterating and direct current, cable induction way to take power can also be adopted, and support wired and wireless several data transmission mode.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model draw-out power supply apparatus structure schematic diagram.
Fig. 3 is the utility model super capacitor syndeton schematic diagram.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In figure, main push-towing rope current measuring transformer 1, draw-out power supply device 2, ground wire current measuring transformer 3, sampling module 4, server 5, getting can mutual inductor 201, and rectifier filer 202, power taking regulate protection circuit 203, isolation voltage stabilizer 204.
Embodiment:
As shown in Figure 1, a kind of high-tension cable sheath grounding current on-line monitoring system, comprise: a sample devices being installed on high-tension cable side respectively of working hard, and the server 5 to be connected with sample devices, wherein said sample devices comprises: be placed on the ground wire current measuring transformer 3 on described high-tension cable sheath ground wire, be placed on the main push-towing rope current measuring transformer 1 on described high-tension cable, the sampling module 4 for current signal being transferred to digital signal be connected with main push-towing rope current measuring transformer 1 with described ground wire current measuring transformer 3, described sampling module 4 is connected with described server 5.
After adopting said structure, sample devices adopts real effective computing method, and measurement current transform er signal, is calculated on-the-spot ground current and main push-towing rope current data, and transferred data in server by interface.
The present embodiment also preferably includes draw-out power supply device 2 as shown in Figure 2; this draw-out power supply device 2 comprises: be socketed on transmission line of electricity get can mutual inductor 201; this is got and can regulate protection circuit 203 with rectifier filer 202, power taking successively, isolate voltage stabilizer 204 and be connected by mutual inductor 201, isolates the output terminal of voltage stabilizer 204 and is connected with the power input of sample devices.Induction power taking current transformer is obtained 201 energy got through processes such as overcommutation, filtering, voltage stabilizings by draw-out power supply module, obtains stable voltage signal.
The present embodiment also preferably includes the super capacitor C be connected with draw-out power supply device output terminal as shown in Figure 3, and this super group electric capacity C is connected with the power input of sample devices by a DC/DC converter.The sample devices that is introduced as of super capacitor provides back-up source.Super capacitor, after the voltage signal of induction power taking current transformer acquisition, is super capacitor charging through rectifying and voltage-stabilizing.When obtaining induction current or induction current cannot meet data acquisition unit work, super capacitor carries out discharging for data acquisition unit provides electric energy.It is fast that super capacitor has charging rate, long service life, heavy-current discharge, the features such as environmental protection.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ main push-towing rope current measuring transformer 1, draw-out power supply device 2, ground wire current measuring transformer 3, sampling module 4, server 5 herein, get energy mutual inductor 201; rectifier filer 202, power taking regulate the term such as protection circuit 203, isolation voltage stabilizer 204, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (4)
1. a high-tension cable sheath grounding current on-line monitoring system, it is characterized in that, comprise: work hard a sample devices being installed on high-tension cable side respectively and the server (5) be connected with sample devices, wherein said sample devices comprises: be placed on the ground wire current measuring transformer (3) on described high-tension cable sheath ground wire; The sampling module (4) for current signal being transferred to digital signal be connected with described ground wire current measuring transformer (3), described sampling module (4) is connected with described server (5).
2. a kind of high-tension cable sheath grounding current on-line monitoring system according to claim 1, it is characterized in that, described sample devices also comprises: be placed on the main push-towing rope current measuring transformer (1) on described high-tension cable, and described main push-towing rope current measuring transformer (1) is connected with described sampling module (4).
3. a kind of high-tension cable sheath grounding current on-line monitoring system according to claim 1; it is characterized in that; also comprise draw-out power supply device (2); this draw-out power supply device (2) comprising: be socketed on transmission line of electricity get can mutual inductor (201); this is got and can regulate protection circuit (203) with rectifier filer (202), power taking successively, isolates voltage stabilizer (204) and be connected by mutual inductor (201), and the output terminal of described isolation voltage stabilizer (204) is connected with the power input of sample devices.
4. a kind of high-tension cable sheath grounding current on-line monitoring system according to claim 3, it is characterized in that, also comprise a super capacitor C be connected with draw-out power supply device (2) output terminal, this super capacitor C is connected with the power input of sample devices by a DC/DC converter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520191600.0U CN204575733U (en) | 2015-04-01 | 2015-04-01 | A kind of high-tension cable sheath grounding current on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520191600.0U CN204575733U (en) | 2015-04-01 | 2015-04-01 | A kind of high-tension cable sheath grounding current on-line monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301346A (en) * | 2015-11-30 | 2016-02-03 | 国网山东省电力公司烟台供电公司 | High-voltage power transmission cable earth current automatic detection device |
| CN110095698A (en) * | 2019-06-18 | 2019-08-06 | 山东钢铁股份有限公司 | A kind of metallic shield grounding monitoring system and method for single-core cable |
| CN111366772A (en) * | 2020-03-25 | 2020-07-03 | 四川信息职业技术学院 | Cable sheath circulation collection system based on CT gets electricity |
| CN111932856A (en) * | 2020-08-05 | 2020-11-13 | 华北电力大学扬中智能电气研究中心 | Ground wire monitoring system and method |
| CN113219369A (en) * | 2021-05-13 | 2021-08-06 | 广东威恒输变电工程有限公司 | Test method for testing cross-connection performance of cables in laying site |
-
2015
- 2015-04-01 CN CN201520191600.0U patent/CN204575733U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301346A (en) * | 2015-11-30 | 2016-02-03 | 国网山东省电力公司烟台供电公司 | High-voltage power transmission cable earth current automatic detection device |
| CN110095698A (en) * | 2019-06-18 | 2019-08-06 | 山东钢铁股份有限公司 | A kind of metallic shield grounding monitoring system and method for single-core cable |
| CN111366772A (en) * | 2020-03-25 | 2020-07-03 | 四川信息职业技术学院 | Cable sheath circulation collection system based on CT gets electricity |
| CN111932856A (en) * | 2020-08-05 | 2020-11-13 | 华北电力大学扬中智能电气研究中心 | Ground wire monitoring system and method |
| CN113219369A (en) * | 2021-05-13 | 2021-08-06 | 广东威恒输变电工程有限公司 | Test method for testing cross-connection performance of cables in laying site |
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