CN105866648A - Insulation detecting system for power transmission cables - Google Patents
Insulation detecting system for power transmission cables Download PDFInfo
- Publication number
- CN105866648A CN105866648A CN201610470504.9A CN201610470504A CN105866648A CN 105866648 A CN105866648 A CN 105866648A CN 201610470504 A CN201610470504 A CN 201610470504A CN 105866648 A CN105866648 A CN 105866648A
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- China
- Prior art keywords
- connects
- insulation
- power cable
- power transmission
- cable
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Locating Faults (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention relates to an insulation detecting system for power transmission cables. The insulation detecting system comprises an electric power cable. A GIS (geographic information system) terminal is connected with the electric power cable, a grounding circuit of the electric power cable is provided with a current sensor, an amplifier is connected with the current sensor, a signal filter is connected with the amplifier, an A/D (analog/digital) converter is connected with the signal filter, a computer is connected with the A/D converter, a data concentration collector is connected with the computer, an environmental temperature collector and a resistance information collector are connected with the data concentration collector, a temperature sensor is connected with the environmental temperature collector, insulation resistance testers are connected with the resistance information collector, GPS (global positioning system) positioning devices are connected with the insulation resistance testers, and the electric power cable is connected with the insulation resistance testers. The insulation detecting system has the advantages of wide application range, accuracy in fault detecting and fault positioning, reliability in running, low power consumption, long service life and convenience in debugging and operation.
Description
Technical field
The invention belongs to power supply unit detection area of maintenance, particularly to a kind of power transmission cable Insulation Inspection System.
Background technology
Power transmission cable has reliable, maintenance workload advantage, power cable is embedded in underground more, therefore when cable breaks down, longer period of time to be spent, not only waste substantial amounts of manpower, material resources, and economic and social impacts difficult to the appraisal can be caused, continuous propelling along with urban network reconstruction, increasing power cable will apply to power system, inherent defect due to power cable, such as cable connector complex process and construction quality problem, cable fault is difficult to avoid that, cable insulation detection is the most basic technology of cable detection, cable insulation detection accurately and effectively is to find Method of Cable Trouble Point in time, guarantee the many power supplies of cable run, essential condition for good electricity；Therefore it provides a kind of applied widely, fault detect is accurate, and reliable, low in energy consumption, service life is long, and debugging is convenient, and exact failure positions, and the power transmission cable Insulation Inspection System of convenient operation is necessary.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, and provide a kind of applied widely, fault detect is accurate, and reliable, low in energy consumption, service life is long, and debugging is convenient, and exact failure positions, the power transmission cable Insulation Inspection System of convenient operation.
nullThe object of the present invention is achieved like this: a kind of power transmission cable Insulation Inspection System，It includes power cable，Described power cable connects GIS terminal，The ground path of described power cable is provided with current sensor，Described current sensor connects amplifier，Described amplifier connects traffic filter，Described traffic filter connects A/D converter，Described A/D converter connects computer，Described computer connects harvester in data set，In described data set, harvester connects temperature collection device and resistance information harvester，Described temperature collection device connects temperature sensor，Described resistance information harvester connects Insulation Resistance Tester，Described Insulation Resistance Tester connects GPS positioner，Described Insulation Resistance Tester connects power cable.
In described data set, harvester passes through GPRS JA(junction ambient) Temperature sampler and resistance information harvester.
Described temperature sensing and the quantity of Insulation Resistance Tester are no less than 10.
Described Insulation Resistance Tester is connected with power cable by the ground path of single power cable.
Described A/D converter uses 16 high-speed a/d conversion chips.
It is 0-400G Ω that described Insulation Resistance Tester measures resistance range ability.
nullBeneficial effects of the present invention: power cable of the present invention connects GIS terminal，GIS terminal is also known as gas insulated terminal，It it is the cable termination of gas-insulated part with SF6 gas as external insulation，Good insulating effect，Current sense is set，Current information is passed sequentially through amplifier、Traffic filter、A/D converter connects computer，By the change of electric current，Detect the insulation situation of power cable in real time，Computer connects harvester in data set，In data set, harvester passes through GPRS JA(junction ambient) Temperature sampler and resistance information harvester，The ambient temperature of the temperature collection device temperature sensor detection power cable by connecting，Understand the longtime running state of power cable，Resistance information harvester connects power cable by Insulation Resistance Tester，The resistance variations of segmentation detection power cable，Simultaneously according to the change of resistance，Detect the state of insulation of power cable in real time，Insulation Resistance Tester connects GPS positioner，Fault coverage is greatly reduced，Maintain easily、Repairing；The present invention is applied widely, and fault detect is accurate, and reliable, low in energy consumption, service life is long, and debugging is convenient, and exact failure positions, convenient operation.
Accompanying drawing explanation
Fig. 1 is the attachment structure schematic diagram of the present invention a kind of power transmission cable Insulation Inspection System.
Fig. 2 is the connection diagram of the Insulation Resistance Tester of the present invention a kind of power transmission cable Insulation Inspection System.
Detailed description of the invention
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1
As depicted in figs. 1 and 2, a kind of power transmission cable Insulation Inspection System, it includes power cable, described power cable connects GIS terminal, the ground path of described power cable is provided with current sensor, described current sensor connects amplifier, described amplifier connects traffic filter, described traffic filter connects A/D converter, described A/D converter connects computer, described computer connects harvester in data set, in described data set, harvester connects temperature collection device and resistance information harvester, described temperature collection device connects temperature sensor, described resistance information harvester connects Insulation Resistance Tester, described Insulation Resistance Tester connects GPS positioner, described Insulation Resistance Tester connects power cable.
nullPower cable of the present invention connects GIS terminal，GIS terminal is also known as gas insulated terminal，It it is the cable termination of gas-insulated part with SF6 gas as external insulation，Good insulating effect，Current sense is set，Current information is passed sequentially through amplifier、Traffic filter、A/D converter connects computer，By the change of electric current，Detect the insulation situation of power cable in real time，Computer connects harvester in data set，In data set, harvester passes through GPRS JA(junction ambient) Temperature sampler and resistance information harvester，The ambient temperature of the temperature collection device temperature sensor detection power cable by connecting，Understand the longtime running state of power cable，Resistance information harvester connects power cable by Insulation Resistance Tester，The resistance variations of segmentation detection power cable，Simultaneously according to the change of resistance，Detect the state of insulation of power cable in real time，Insulation Resistance Tester connects GPS positioner，Fault coverage is greatly reduced，Maintain easily、Repairing；The present invention is applied widely, and fault detect is accurate, and reliable, low in energy consumption, service life is long, and debugging is convenient, and exact failure positions, convenient operation.
Embodiment 2
As depicted in figs. 1 and 2, a kind of power transmission cable Insulation Inspection System, it includes power cable, described power cable connects GIS terminal, the ground path of described power cable is provided with current sensor, described current sensor connects amplifier, described amplifier connects traffic filter, described traffic filter connects A/D converter, described A/D converter connects computer, described computer connects harvester in data set, in described data set, harvester connects temperature collection device and resistance information harvester, described temperature collection device connects temperature sensor, described resistance information harvester connects Insulation Resistance Tester, described Insulation Resistance Tester connects GPS positioner, described Insulation Resistance Tester connects power cable.
In described data set, harvester passes through GPRS JA(junction ambient) Temperature sampler and resistance information harvester；Described temperature sensing and the quantity of Insulation Resistance Tester are no less than 10；Described Insulation Resistance Tester is connected with power cable by the ground path of single power cable；Described A/D converter uses 16 high-speed a/d conversion chips；It is 0-400G Ω that described Insulation Resistance Tester measures resistance range ability.
nullPower cable of the present invention connects GIS terminal，GIS terminal is also known as gas insulated terminal，It it is the cable termination of gas-insulated part with SF6 gas as external insulation，Good insulating effect，Current sense is set，Current information is passed sequentially through amplifier、Traffic filter、A/D converter connects computer，By the change of electric current，Detect the insulation situation of power cable in real time，Computer connects harvester in data set，In data set, harvester passes through GPRS JA(junction ambient) Temperature sampler and resistance information harvester，The ambient temperature of the temperature collection device temperature sensor detection power cable by connecting，Understand the longtime running state of power cable，Resistance information harvester connects power cable by Insulation Resistance Tester，The resistance variations of segmentation detection power cable，Simultaneously according to the change of resistance，Detect the state of insulation of power cable in real time，Insulation Resistance Tester connects GPS positioner，Fault coverage is greatly reduced，Maintain easily、Repairing；The present invention is applied widely, and fault detect is accurate, and reliable, low in energy consumption, service life is long, and debugging is convenient, and exact failure positions, convenient operation.
Claims (6)
1. a power transmission cable Insulation Inspection System, it includes power cable, it is characterized in that: described power cable connects GIS terminal, the ground path of described power cable is provided with current sensor, described current sensor connects amplifier, described amplifier connects traffic filter, described traffic filter connects A/D converter, described A/D converter connects computer, described computer connects harvester in data set, in described data set, harvester connects temperature collection device and resistance information harvester, described temperature collection device connects temperature sensor, described resistance information harvester connects Insulation Resistance Tester, described Insulation Resistance Tester connects GPS positioner, described Insulation Resistance Tester connects power cable.
2. a kind of power transmission cable Insulation Inspection System as claimed in claim 1, it is characterised in that: in described data set, harvester passes through GPRS JA(junction ambient) Temperature sampler and resistance information harvester.
3. a kind of power transmission cable Insulation Inspection System as claimed in claim 1, it is characterised in that: described temperature sensing and the quantity of Insulation Resistance Tester are no less than 10.
4. a kind of power transmission cable Insulation Inspection System as claimed in claim 1, it is characterised in that: described Insulation Resistance Tester is connected with power cable by the ground path of single power cable.
5. a kind of power transmission cable Insulation Inspection System as claimed in claim 1, it is characterised in that: described A/D converter uses 16 high-speed a/d conversion chips.
6. a kind of power transmission cable Insulation Inspection System as claimed in claim 1, it is characterised in that: it is 0-400G Ω that described Insulation Resistance Tester measures resistance range ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470504.9A CN105866648A (en) | 2016-06-24 | 2016-06-24 | Insulation detecting system for power transmission cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470504.9A CN105866648A (en) | 2016-06-24 | 2016-06-24 | Insulation detecting system for power transmission cables |
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| CN105866648A true CN105866648A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610470504.9A Pending CN105866648A (en) | 2016-06-24 | 2016-06-24 | Insulation detecting system for power transmission cables |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329034A (en) * | 2017-07-31 | 2017-11-07 | 成都众邦凯测科技有限公司 | The automatic station-keeping system of fault acquisition device |
| CN107544004A (en) * | 2017-06-28 | 2018-01-05 | 温州大学 | A kind of detection means of building body interior insulation electric wire broken skin damage |
| CN110058122A (en) * | 2019-04-15 | 2019-07-26 | 西南交通大学 | A kind of rubber cable terminal abnormal hot spot test device and method for diagnosing faults |
| CN112858859A (en) * | 2021-04-19 | 2021-05-28 | 江苏森海电气有限公司 | Crosslinked polyethylene power cable insulation monitoring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544004A (en) * | 2017-06-28 | 2018-01-05 | 温州大学 | A kind of detection means of building body interior insulation electric wire broken skin damage |
| CN107544004B (en) * | 2017-06-28 | 2019-06-28 | 温州大学 | A kind of detection device of building body interior insulation electric wire broken skin damage |
| CN107329034A (en) * | 2017-07-31 | 2017-11-07 | 成都众邦凯测科技有限公司 | The automatic station-keeping system of fault acquisition device |
| CN110058122A (en) * | 2019-04-15 | 2019-07-26 | 西南交通大学 | A kind of rubber cable terminal abnormal hot spot test device and method for diagnosing faults |
| CN112858859A (en) * | 2021-04-19 | 2021-05-28 | 江苏森海电气有限公司 | Crosslinked polyethylene power cable insulation monitoring device |
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Application publication date: 20160817 |