CN104062483A - Distributed high voltage cable shielding layer current monitoring system and distributed high voltage cable shielding layer current monitoring method thereof - Google Patents
Distributed high voltage cable shielding layer current monitoring system and distributed high voltage cable shielding layer current monitoring method thereof Download PDFInfo
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- CN104062483A CN104062483A CN201410311013.0A CN201410311013A CN104062483A CN 104062483 A CN104062483 A CN 104062483A CN 201410311013 A CN201410311013 A CN 201410311013A CN 104062483 A CN104062483 A CN 104062483A
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Abstract
The present invention belongs to the high voltage cable equipment technology field, in particular to a distributed high voltage cable shielding layer current monitoring system and a distributed high voltage cable shielding layer current monitoring method thereof, for solving the problems that the conventional high voltage cable shielding layer current monitoring efficiency is low, etc. The distributed high voltage cable shielding layer current monitoring system comprises a plurality of current sampling sets and a plurality of current monitoring devices, and the current sampling sets are in one-to-one correspondence with the current monitoring devices. Each current sampling set comprises a plurality of current sensors connected with a high voltage cable shielding layer ground line, the current sensors in the same current sampling set are connected with the corresponding current monitoring device in a wireless communication manner, and the current monitoring devices are in networking via an RS485 interface module and/or ZIGBEE interface module and are connected with an upper computer. The advantages of the present invention are that the distributed high voltage cable shielding layer current monitoring system and the distributed high voltage cable shielding layer current monitoring method thereof are simple in structure, high in automation degree, monitoring precision and stability and good in safety, and can monitor the currents of a plurality of high voltage cable shielding layer ground lines simultaneously.
Description
Technical field
The invention belongs to high-tension cable equipment technical field, especially relate to a kind of distributed high-voltage cable shielding layers current monitoring system and current monitoring method thereof.
Background technology
High-voltage cable shielding layers ground current is one of important parameter characterizing high-tension cable external insulation situation.Present stage causes that the abnormal principal element of cable grounding current value has: outside destroy, cross interconnected system wrong line, ground wire are stolen, termite stings erosion, chemical substance erosion etc.When cable generation outer jacket breaks or during the fault such as ground connection destruction, unexpected variation can occur the ground current of cable sheath, departs from the cable metal sheath grounding current value under normal operation.Therefore, the ground current size of cable metal sheath can reflect the running status of high-tension cable.At present, domestic the on-line monitoring of high-tension cable metallic shield grounding electric current is also very lacked.Many areas just utilize and manually ground current are carried out to Timing measurement, need secondary maintenance personnel, during patrolling and examining, after using instrumentation instrument to measure, whether ground connection is good could to judge screen layer, the reliability of earthed system and cable shield in monitoring station, and wasting manpower and material resources's resource in time, cannot monitor in real time to ground current value.Along with the construction of strong intelligent grid, high-voltage cable shielding layers ground current is carried out to real time on-line monitoring and be necessary.
The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example, Chinese patent literature discloses a kind of high-voltage cable metal sheath ground current on-line monitoring system [application number: 201210344542.1], and he comprises current transformer, ground current acquisition module, GPRS DTU, monitoring host computer.By current transformer, induce the electric current on cable grounding line, utilize ground current acquisition module Real-time Collection current data, and send on certain monitoring host computer with fixed ip address by GPRS DTU.
Such scheme has been alleviated the large problem of existing personal monitoring's high-voltage cable shielding layers ground current difficulty to a certain extent, but this scheme still exists: cannot carry out Real-Time Monitoring, the problem such as monitoring effect is poor, and precision is low.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of simple in structure, the distributed high-voltage cable shielding layers current monitoring system that can simultaneously monitor a plurality of high-voltage cable shielding layers.
Another object of the present invention is for the problems referred to above, provides a kind of easy to operate, the distributed high-voltage cable shielding layers current monitoring method that automaticity is high.
For achieving the above object, the present invention has adopted following technical proposal: this distributed high-voltage cable shielding layers current monitoring system, it is characterized in that, native system comprises some current sample groups and some current monitoring devices, described current sample group is corresponding one by one with current monitoring device, each current sample group comprises respectively some current sensors that are connected with high-voltage cable shielding layers ground wire, each current sensor in same current sample group is connected with corresponding current monitoring device by wireless communication mode respectively, each current monitoring device passes through RS485 interface module and/or the networking of ZIGBEE interface module and is connected with host computer.In this structure, by some current sensors that are connected with high-voltage cable shielding layers ground wire respectively, monitor the current information of each high-voltage cable shielding layers ground wire, and by wireless communication mode and current monitoring device, the mutual networking of each current monitoring device is also sent to host computer by the current information of the high-voltage cable shielding layers ground wire recording, and makes native system can monitor a plurality of high-voltage cable shielding layers ground wires simultaneously.
In above-mentioned distributed high-voltage cable shielding layers current monitoring system, described current sensor comprises the insulation shell that is rectangular parallelepiped, described insulation shell is provided with at least one ganoid current measurement face, in insulation shell, be provided with single-chip microcomputer, and described single-chip microcomputer is connected with electric current induction structure, wireless transport module and built-in power, the current measurement face of described insulation shell is arranged on high-voltage cable shielding layers ground wire by fixed sturcture, and described single-chip microcomputer is also connected with power alarm equipments.Obviously, wireless transport module makes between current sensor and current sensing means without being electrically connected to, and safe, in addition, the cycle of the current sensor measurement high-voltage cable shielding layers ground wire electric current is here 30 seconds; The transmission that current sensor sends current signal to current monitoring device is spaced apart 4 minutes; Or when the size of current of current sensor measurement sends current signal size 0.2A over the current sensor last time to current monitoring device, current sensor sends current signal to current monitoring device at once.
In above-mentioned distributed high-voltage cable shielding layers current monitoring system, described wireless transport module is 2.4GHz wireless communication module.
In above-mentioned distributed high-voltage cable shielding layers current monitoring system, described fixed sturcture is the mode of tying up or bonding way.Be about to that high-tension shielding layer ground wire tied up mode by binding or bonding way is fixedly mounted on the current measurement face of current sensor, make like this high-tension shielding layer ground wire be difficult for departing from from current measurement face, stability is high.
In above-mentioned distributed high-voltage cable shielding layers current monitoring system, described current monitoring device comprises instrument housing, in instrument housing, be provided with control circuit board, described instrument housing front is provided with the display screen being connected on control circuit board, at the instrument housing back side, be provided with the RS485 communication terminal of RS485 interface module, the ZIGBEE antenna of ZIGBEE interface module, direct supply connection terminal, ac power supply terminal and reserved terminal, described RS485 interface module is all connected with control circuit board with ZIGBEE interface module.The current monitoring device here preferably adopts the mode of embedded installation to be connected with switch cubicle or power equipment, and RS485 interface module is for being connected with host computer, and ZIGBEE interface module is for the mutual networking between current monitoring device.
In above-mentioned distributed high-voltage cable shielding layers current monitoring system, the top of described instrument housing is provided with between instrument housing front and the back side and the bar-shaped trough axially arranging, described instrument housing is provided with and is positioned at above bar-shaped trough and along the axially extended elastic strip of bar-shaped trough, described elastic strip one end is fixedly installed on instrument housing, and the other end is upwards bent to form Access Division.First elastic strip is pressed in bar-shaped trough, then will on current monitoring device, be arranged in the mounting hole of switch cubicle or power equipment, thereby this current monitoring device is installed fixing after elastic strip departs from bar-shaped trough.
In above-mentioned distributed high-voltage cable shielding layers current monitoring system, the quantity of the current sensor in each current sample group is less than 200.The general quantity is here 6 or 30.
The distributed high-voltage cable shielding layers current monitoring method of above-mentioned distributed high-voltage cable shielding layers current monitoring system is as described below: distributed high-voltage cable shielding layers current monitoring method, it is characterized in that, and this monitoring method comprises the steps:
A, some current sensors are arranged on respectively on high-tension shielding layer ground wire, thereby record the current data of high-tension shielding layer ground wire;
The current data of B, the high-tension shielding layer ground wire that current sensor recorded by wireless communication mode is sent to current monitoring device, and each current monitoring device is sent to host computer by RS485 interface module and/or the networking of ZIGBEE interface module current data that high-tension shielding layer ground wire recorded.
During use, by some current sensors that are connected with high-voltage cable shielding layers ground wire respectively, monitor the current information of each high-voltage cable shielding layers ground wire, and by wireless communication mode and current monitoring device, the mutual networking of each current monitoring device is also sent to host computer by the current information of the high-voltage cable shielding layers ground wire recording, make native system can monitor a plurality of high-voltage cable shielding layers ground wires, automaticity is high simultaneously.
In above-mentioned distributed high-voltage cable shielding layers current monitoring method, in steps A, the installation of current sensor comprises the steps: high-tension shielding layer ground wire to be fixedly mounted on the current measurement face of current sensor by the mode of tying up or bonding way.Make high-tension shielding layer ground wire be difficult for departing from from the current measurement face of current sensor.
In above-mentioned distributed high-voltage cable shielding layers current monitoring method, described current sensor comprises the insulation shell that is rectangular parallelepiped, described insulation shell is provided with at least one ganoid current measurement face, in insulation shell, be provided with single-chip microcomputer, and described single-chip microcomputer is connected with electric current induction structure, wireless transport module and built-in power, the current measurement face of described insulation shell is arranged on high-voltage cable shielding layers ground wire by fixed sturcture, and described single-chip microcomputer is also connected with power alarm equipments; Described wireless transport module is 2.4GHz wireless communication module.Obviously, wireless transport module makes between current sensor and current sensing means without being electrically connected to, and safe, in addition, the cycle of the current sensor measurement high-voltage cable shielding layers ground wire electric current is here 30 seconds; The transmission that current sensor sends current signal to current monitoring device is spaced apart 4 minutes; Or when the size of current of current sensor measurement sends current signal size 0.2A over the current sensor last time to current monitoring device, current sensor sends current signal to current monitoring device at once.
Compared with prior art, the advantage of this distributed high-voltage cable shielding layers current monitoring system and current monitoring method thereof is: simple in structure, can monitor a plurality of high-voltage cable shielding layers ground wire electric currents simultaneously, automaticity is high, monitoring accuracy is high, and stability is strong, and security is good.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is the structural representation of current sensor in the present invention.
Fig. 3 is the structural representation of current monitoring device in the present invention.
Fig. 4 is the structural representation at another visual angle of current monitoring device in the present invention.
In figure, current sample group 1, current sensor 11, insulation shell 111, current measurement face 112, single-chip microcomputer 113, electric current induction structure 114, wireless transport module 115, built-in power 116, power alarm equipments 117, current monitoring device 2, instrument housing 21, bar-shaped trough 211, elastic strip 212, Access Division 213, control circuit board 22, display screen 23, RS485 communication terminal 24, ZIGBEE antenna 25, direct supply connection terminal 26, ac power supply terminal 27, host computer 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As Figure 1-4, this distributed high-voltage cable shielding layers current monitoring system, comprise some current sample groups 1 and some current monitoring devices 2, current sample group 1 is corresponding one by one with current monitoring device 2, each current sample group 1 comprises respectively some current sensors 11 that are connected with high-voltage cable shielding layers ground wire, each current sensor 11 in same current sample group 1 is connected with corresponding current monitoring device 2 by wireless communication mode respectively, each current monitoring device 2 passes through RS485 interface module and/or the networking of ZIGBEE interface module and is connected with host computer 3, by the current information of the some current sensor being connected with high-voltage cable shielding layers ground wire respectively 11 each high-voltage cable shielding layers ground wires of monitoring, and by wireless communication mode and current monitoring device 2, the mutual networking of each current monitoring device 2 is also sent to host computer 3 by the current information of the high-voltage cable shielding layers ground wire recording, make native system can monitor a plurality of high-voltage cable shielding layers ground wires simultaneously.
Current sensor 11 in the present embodiment comprises the insulation shell 111 that is rectangular parallelepiped, insulation shell 111 is provided with at least one ganoid current measurement face 112, in insulation shell 111, be provided with single-chip microcomputer 113, and single-chip microcomputer 113 is connected with electric current induction structure 114, wireless transport module 115 and built-in power 116, the current measurement face 112 of insulation shell 111 is arranged on high-voltage cable shielding layers ground wire by fixed sturcture, single-chip microcomputer 113 is also connected with power alarm equipments 117, obviously, wireless transport module 115 makes between current sensor 11 and current sensing means 2 without being electrically connected to, safe, in addition, the cycle that the current sensor 11 is here measured high-voltage cable shielding layers ground wire electric current is 30 seconds, the transmission that current sensor 11 sends current signal to current monitoring device 2 is spaced apart 4 minutes, or when the size of current that current sensor 11 is measured sends current signal size 0.2A over 11 last times of current sensor to current monitoring device 2, current sensor 11 sends current signals to current monitoring device 2 at once.Preferably, the wireless transport module 115 is here 2.4GHz wireless communication module.Preferably, the fixed sturcture is here the mode of tying up or bonding way, be about to that high-tension shielding layer ground wire tied up mode by binding or bonding way is fixedly mounted on the current measurement face 112 of current sensor 11, make like this high-tension shielding layer ground wire be difficult for departing from from current measurement face 112, stability is high.The quantity of the current sensor 11 in each current sample group 1 is less than 200, and the general quantity is here 6 or 30.
Further, the current monitoring device 2 here comprises instrument housing 21, in instrument housing 21, be provided with control circuit board 22, instrument housing 21 fronts are provided with the display screen 23 being connected on control circuit board 22, at instrument housing 21 back sides, be provided with the RS485 communication terminal 24 of RS485 interface module, the ZIGBEE antenna 25 of ZIGBEE interface module, direct supply connection terminal 26, ac power supply terminal 27 and reserved terminal, RS485 interface module is all connected with control circuit board 22 with ZIGBEE interface module, the current monitoring device 2 here preferably adopts the mode of embedded installation to be connected with switch cubicle or power equipment, RS485 interface module is for being connected with host computer, ZIGBEE interface module is for the mutual networking between current monitoring device 2.Wherein, the top of instrument housing 21 is provided with between instrument housing 21 fronts and the back side and the bar-shaped trough 211 axially arranging, instrument housing 21 is provided with and is positioned at bar-shaped trough 211 tops and along the axially extended elastic strip 212 of bar-shaped trough 211, elastic strip 212 one end are fixedly installed on instrument housing 21, the other end is upwards bent to form Access Division 213, first elastic strip 212 is pressed in bar-shaped trough 211, then will on current monitoring device 2, be arranged in the mounting hole of switch cubicle or power equipment, thereby after 212 of elasticity depart from bar-shaped trough 211, this current monitoring device 2 is installed fixing.
The distributed high-voltage cable shielding layers current monitoring method of this distributed high-voltage cable shielding layers current monitoring system, comprise the steps: A, some current sensors 11 are arranged on respectively on high-tension shielding layer ground wire, thereby record the current data of high-tension shielding layer ground wire; The current data of B, the high-tension shielding layer ground wire that current sensor 11 recorded by wireless communication mode is sent to current monitoring device 2, and each current monitoring device 2 is sent to host computer 3 by RS485 interface module and/or the networking of ZIGBEE interface module current data that high-tension shielding layer ground wire recorded.
Current sensor 11 in this method comprises the insulation shell 111 that is rectangular parallelepiped, described insulation shell 111 is provided with at least one ganoid current measurement face 112, in insulation shell 111, be provided with single-chip microcomputer 113, and described single-chip microcomputer 113 is connected with electric current induction structure 114, wireless transport module 115 and built-in power 116, the current measurement face 112 of described insulation shell 111 is arranged on high-voltage cable shielding layers ground wire by fixed sturcture, and described single-chip microcomputer 113 is also connected with power alarm equipments 117; Described wireless transport module 115 is 2.4GHz wireless communication module.Obviously, wireless transport module 115 makes between current sensor 11 and current sensing means 2 without being electrically connected to, and safe, in addition, the cycle of the current sensor 11 measurement high-voltage cable shielding layers ground wire electric currents is here 30 seconds; The transmission that current sensor 11 sends current signal to current monitoring device 2 is spaced apart 4 minutes; Or when the size of current that current sensor 11 is measured sends current signal size 0.2A over 11 last times of current sensor to current monitoring device 2, current sensor 11 sends current signals to current monitoring device 2 at once.In addition, in steps A, the installation of current sensor 11 comprises the steps: high-tension shielding layer ground wire by the mode of tying up or bonding way, to be fixedly mounted on the current measurement face 112 of current sensor 11, be about to that high-tension shielding layer ground wire tied up mode by binding or bonding way is fixedly mounted on the current measurement face 112 of current sensor 11, make like this high-tension shielding layer ground wire be difficult for departing from from current measurement face 112.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used current sample group 1 herein, current sensor 11, insulation shell 111, current measurement face 112, single-chip microcomputer 113, electric current induction structure 114, wireless transport module 115, built-in power 116, power alarm equipments 117, current monitoring device 2, instrument housing 21, bar-shaped trough 211, elastic strip 212, Access Division 213, control circuit board 22, display screen 23, RS485 communication terminal 24, ZIGBEE antenna 25, direct supply connection terminal 26, ac power supply terminal 27, host computer 3 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. a distributed high-voltage cable shielding layers current monitoring system, it is characterized in that, native system comprises some current sample groups (1) and some current monitoring devices (2), described current sample group (1) is corresponding one by one with current monitoring device (2), each current sample group (1) comprises respectively some current sensors that are connected with high-voltage cable shielding layers ground wire (11), each current sensor (11) in same current sample group (1) is connected with corresponding current monitoring device (2) by wireless communication mode respectively, each current monitoring device (2) passes through RS485 interface module and/or the networking of ZIGBEE interface module and is connected with host computer (3).
2. distributed high-voltage cable shielding layers current monitoring system according to claim 1, it is characterized in that, described current sensor (11) comprises the insulation shell (111) that is rectangular parallelepiped, described insulation shell (111) is provided with at least one ganoid current measurement face (112), in insulation shell (111), be provided with single-chip microcomputer (113), and described single-chip microcomputer (113) is connected with electric current induction structure (114), wireless transport module (115) and built-in power (116), the current measurement face (112) of described insulation shell (111) is arranged on high-voltage cable shielding layers ground wire by fixed sturcture, described single-chip microcomputer (113) is also connected with power alarm equipments (117).
3. distributed high-voltage cable shielding layers current monitoring system according to claim 2, is characterized in that, described wireless transport module (115) is 2.4GHz wireless communication module.
4. distributed high-voltage cable shielding layers current monitoring system according to claim 2, is characterized in that, described fixed sturcture is the mode of tying up or bonding way.
5. according to the distributed high-voltage cable shielding layers current monitoring system described in claim 1 or 2 or 3 or 4, it is characterized in that, described current monitoring device (2) comprises instrument housing (21), in instrument housing (21), be provided with control circuit board (22), described instrument housing (21) front is provided with the display screen (23) being connected on control circuit board (22), at instrument housing (21) back side, be provided with the RS485 communication terminal (24) of RS485 interface module, the ZIGBEE antenna (25) of ZIGBEE interface module, direct supply connection terminal (26), ac power supply terminal (27) and reserved terminal, described RS485 interface module is all connected with control circuit board (22) with ZIGBEE interface module.
6. distributed high-voltage cable shielding layers current monitoring system according to claim 5, it is characterized in that, the top of described instrument housing (21) is provided with and is positioned between instrument housing (21) front and the back side and the bar-shaped trough (211) axially arranging, described instrument housing (21) is provided with and is positioned at above bar-shaped trough (211) and along the axially extended elastic strip of bar-shaped trough (211) (212), it is upper that described elastic strip (212) one end is fixedly installed on instrument housing (21), and the other end is upwards bent to form Access Division (213).
7. distributed high-voltage cable shielding layers current monitoring system according to claim 1, is characterized in that, the quantity of the current sensor (11) in each current sample group (1) is less than 200.
8. according to a distributed high-voltage cable shielding layers current monitoring method for the distributed high-voltage cable shielding layers current monitoring system described in claim 1-7, it is characterized in that, this monitoring method comprises the steps:
A, some current sensors (11) are arranged on respectively on high-tension shielding layer ground wire, thereby record the current data of high-tension shielding layer ground wire;
The current data of B, the high-tension shielding layer ground wire that current sensor (11) recorded by wireless communication mode is sent to current monitoring device (2), and each current monitoring device (2) is sent to host computer (3) by RS485 interface module and/or the networking of ZIGBEE interface module current data that high-tension shielding layer ground wire recorded.
9. distributed high-voltage cable shielding layers current monitoring method according to claim 8, it is characterized in that, described current sensor (11) comprises the insulation shell (111) that is rectangular parallelepiped, described insulation shell (111) is provided with at least one ganoid current measurement face (112), in insulation shell (111), be provided with single-chip microcomputer (113), and described single-chip microcomputer (113) is connected with electric current induction structure (114), wireless transport module (115) and built-in power (116), the current measurement face (112) of described insulation shell (111) is arranged on high-voltage cable shielding layers ground wire by fixed sturcture, described single-chip microcomputer (113) is also connected with power alarm equipments (117), described wireless transport module (115) is 2.4GHz wireless communication module.
10. distributed high-voltage cable shielding layers current monitoring method according to claim 9, it is characterized in that, in steps A, the installation of current sensor (11) comprises the steps: high-tension shielding layer ground wire to be fixedly mounted on the current measurement face (112) of current sensor (11) by the mode of tying up or bonding way.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034304A (en) * | 2020-08-27 | 2020-12-04 | 杭州巨骐信息科技股份有限公司 | Isolation system between low-voltage circuit and data acquisition monitoring circuit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03214073A (en) * | 1990-01-19 | 1991-09-19 | Hitachi Cable Ltd | Measuring method for dc leakage current of power cable |
| CN201402293Y (en) * | 2009-04-22 | 2010-02-10 | 中国电力科学研究院 | Distributed wireless insulation live testing system for high-voltage equipment |
| CN102590697A (en) * | 2012-03-16 | 2012-07-18 | 武汉朗德电气有限公司 | Cable on-line monitoring device for wireless transmission |
| CN102967741A (en) * | 2012-11-20 | 2013-03-13 | 河南新月实业有限公司 | Voltage-type current transformer for data detection of high-voltage line |
| CN202886446U (en) * | 2012-07-12 | 2013-04-17 | 天津市津海天源电力技术有限公司 | Monitoring system for grounding current of high-voltage cable sheath |
| CN203037772U (en) * | 2012-12-28 | 2013-07-03 | 安徽巨森电器有限公司 | Distributed online grid operation equipment insulation monitoring device based on ZigBee networking technology |
| CN103389437A (en) * | 2013-07-31 | 2013-11-13 | 国家电网公司 | Device and method for monitoring shielding current of secondary control cable of transformer substation in real time |
| CN203350394U (en) * | 2013-07-31 | 2013-12-18 | 北京浩天中胜科技有限公司 | Cable fault locating and temperature load on-line monitoring system |
| CN203535181U (en) * | 2013-11-02 | 2014-04-09 | 福州大学 | A power cable outer insulation online monitoring system based on wireless transmission |
| CN204028196U (en) * | 2014-07-01 | 2014-12-17 | 杭州意能防雷技术有限公司 | Distributed high-voltage cable shielding layers current monitoring system |
-
2014
- 2014-07-01 CN CN201410311013.0A patent/CN104062483B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03214073A (en) * | 1990-01-19 | 1991-09-19 | Hitachi Cable Ltd | Measuring method for dc leakage current of power cable |
| CN201402293Y (en) * | 2009-04-22 | 2010-02-10 | 中国电力科学研究院 | Distributed wireless insulation live testing system for high-voltage equipment |
| CN102590697A (en) * | 2012-03-16 | 2012-07-18 | 武汉朗德电气有限公司 | Cable on-line monitoring device for wireless transmission |
| CN202886446U (en) * | 2012-07-12 | 2013-04-17 | 天津市津海天源电力技术有限公司 | Monitoring system for grounding current of high-voltage cable sheath |
| CN102967741A (en) * | 2012-11-20 | 2013-03-13 | 河南新月实业有限公司 | Voltage-type current transformer for data detection of high-voltage line |
| CN203037772U (en) * | 2012-12-28 | 2013-07-03 | 安徽巨森电器有限公司 | Distributed online grid operation equipment insulation monitoring device based on ZigBee networking technology |
| CN103389437A (en) * | 2013-07-31 | 2013-11-13 | 国家电网公司 | Device and method for monitoring shielding current of secondary control cable of transformer substation in real time |
| CN203350394U (en) * | 2013-07-31 | 2013-12-18 | 北京浩天中胜科技有限公司 | Cable fault locating and temperature load on-line monitoring system |
| CN203535181U (en) * | 2013-11-02 | 2014-04-09 | 福州大学 | A power cable outer insulation online monitoring system based on wireless transmission |
| CN204028196U (en) * | 2014-07-01 | 2014-12-17 | 杭州意能防雷技术有限公司 | Distributed high-voltage cable shielding layers current monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034304A (en) * | 2020-08-27 | 2020-12-04 | 杭州巨骐信息科技股份有限公司 | Isolation system between low-voltage circuit and data acquisition monitoring circuit |
| CN112034304B (en) * | 2020-08-27 | 2023-03-24 | 杭州巨骐信息科技股份有限公司 | Isolation system between low-voltage circuit and data acquisition monitoring circuit |
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|---|---|
| CN104062483B (en) | 2017-02-01 |
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