CN205229391U - Insulating on -line monitoring system of high tension cable sheath - Google Patents
Insulating on -line monitoring system of high tension cable sheath Download PDFInfo
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- CN205229391U CN205229391U CN201520973685.8U CN201520973685U CN205229391U CN 205229391 U CN205229391 U CN 205229391U CN 201520973685 U CN201520973685 U CN 201520973685U CN 205229391 U CN205229391 U CN 205229391U
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Abstract
The utility model discloses an and provide one kind and detect precision high, the many unit a plurality of monitoring points of integration and effective cost -effective insulating on -line monitoring system of high tension cable sheath. The utility model discloses a set up respectively earth current collector (2) and line current collector (3) on a plurality of cables (1), and earth current collector (2) and monitoring devices (4) and interconnect's control backstage (5) and temperature acquisition device (6) that line current collector (3) equal electricity is connected are a plurality of all be provided with distributed temperature measurement optic fibre (7) on cable (1), distributed temperature measurement optic fibre (7) are along establishing cable (1) on the surface to as the communications cable respectively with monitoring devices (4) control backstage (5) and temperature acquisition device (6) are connected. The utility model is suitable for a cable insulation detection area.
Description
Technical field
The utility model relates to a kind of cable insulation deterioration extent monitoring technology, particularly relates to a kind of high-tension cable insulating sheath on-line monitoring system.
Background technology
For high-tension cable, traditional insulating sheath monitoring means mainly measures insulating sheath resistance by having a power failure or sheath power-cycled measured by charged clamp reometer.In recent years, in order to improve the reliability index of transmission line of electricity, the chance of high-tension cable interruption maintenance is fewer and feweri; Circumstance complication residing for underground cable, adopts traditional hand dipping sheath circulating current more and more difficult.In the actual motion of high-tension cable, whether cable core running current overload, major insulation and insulating sheath whether existing defects, can from the reacting condition of cable metal sheath circulating current out, so high-tension cable insulating sheath on-line monitoring system is commonly used to detect the situation of sheath in market, its feature is: gather ground current, line current, contact temperature, environment temperature, by wireless network transmissions to control backstage.Shortcoming is: it is low that existing technology all only rests on the single technical parameter monitoring accuracy of monitoring, can not relation between actual syndicated parameters, not can completely location and judge the insulation status of cable sheath, more can not do anticipation to the insulation development trend of cable.
Utility model content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides the high-tension cable insulating sheath on-line monitoring system that a kind of accuracy of detection is high, the multiple monitoring point of Unification of diverse is also effectively cost-saving.
The technical scheme that the utility model adopts is: the utility model comprise be separately positioned on ground current collector on some cables and line current collector, the monitoring device that is all electrically connected with described ground current collector and described line current collector and interconnective monitoring backstage and temperature collecting device, some described cables are provided with distributed temperature measuring optical fiber, described distributed temperature measuring optical fiber is located on the surface of described cable, and is connected with temperature collecting device with described monitoring device, described monitoring backstage respectively as the communications cable.
Further, some described cables are also provided with ground wire, described ground current collector is arranged on described ground wire.
Further, described ground current collector and described line current collector all adopt current transformer.
The beneficial effects of the utility model are: the monitoring device be separately positioned on ground current collector on some cables and line current collector because the utility model comprises, being all electrically connected with described ground current collector and described line current collector and interconnective monitoring backstage and temperature collecting device, some described cables are provided with distributed temperature measuring optical fiber, described distributed temperature measuring optical fiber is located on the surface of described cable, and is connected with temperature collecting device with described monitoring device, described monitoring backstage respectively as the communications cable.Compared with prior art, the utility model is provided with described distributed temperature measuring optical fiber on some described cables, described distributed temperature measuring fiber distribution is arranged on the outside surface of described cable, can change by the linearity test of cable described in whole piece by originally measuring contact temperature, more described cable is detected, improve accuracy of detection; With described distributed temperature measuring optical fiber, described monitoring device is connected with described monitoring backstage simultaneously, replaces original radio communication to connect, while guarantee communication quality, also save cost.Therefore, the utility model accuracy of detection is high, the multiple monitoring point of Unification of diverse is also effectively cost-saving.
Because described ground current collector and described line current collector all adopt current transformer.The accuracy of detection of current transformer is up to 0.1%, and this is that common collector is beyond one's reach precision grade, and therefore, the utility model can improve accuracy of detection further.
Accompanying drawing explanation
Fig. 1 is structural schematic block diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprise be separately positioned on ground current collector 2 on some cables 1 and line current collector 3, the monitoring device 4 that is all electrically connected with described ground current collector 2 and described line current collector 3 and interconnective monitoring backstage 5 and temperature collecting device 6, some described cables 1 are provided with distributed temperature measuring optical fiber 7, described distributed temperature measuring optical fiber 7 is located on the surface of described cable 1, and is connected with temperature collecting device 6 with described monitoring device 4, described monitoring backstage 5 respectively as the communications cable.Some described cables 1 are also provided with ground wire 8, and described ground current collector 2 is arranged on described ground wire 8.Described ground current collector 2 and described line current collector 3 all adopt current transformer.
The described ground current collector 2 of high precision current transformer and described line current collector 3 is adopted to be separately positioned on described ground wire 8 and described cable 1, trickleer curent change can be reflected while guarantee sampling precision, simultaneously the temperature acquisition of described cable 1 is sampled by original single contact and is changed described distributed temperature measuring optical fiber 7 into and carry out thermometric, the temperature variation of whole piece cable can be measured, the insulation fault fixed point being described cable 1 by the temperature variation of trickle curent change and a whole set of cable provides data reference, and, in the utility model, described monitoring device 4 is connected with described monitoring backstage 5 as telecommunication optical fiber by described distributed temperature measuring optical fiber 7 simultaneously, substituted for original Wireless Telecom Equipment, also use cost can be saved while guarantee communication quality.The ground current data received, line current data and temperature data are demonstrated relevant cable insulation condition information by comparing to the data model analysis of system by software by described monitoring backstage 5.
The utility model is applicable to cable insulation detection field.
Claims (3)
1. a high-tension cable insulating sheath on-line monitoring system, it comprises and is separately positioned on ground current collector (2) on some cables (1) and line current collector (3), the monitoring device (4) be all electrically connected with described ground current collector (2) and described line current collector (3) and interconnective monitoring backstage (5) and temperature collecting device (6), it is characterized in that: on some described cables (1), be provided with distributed temperature measuring optical fiber (7), described distributed temperature measuring optical fiber (7) is located on the surface of described cable (1), and as the communications cable respectively with described monitoring device (4), described monitoring backstage (5) is connected with temperature collecting device (6).
2. high-tension cable insulating sheath on-line monitoring system according to claim 1, is characterized in that: on some described cables (1), be also provided with ground wire (8), and described ground current collector (2) is arranged on described ground wire (8).
3. high-tension cable insulating sheath on-line monitoring system according to claim 2, is characterized in that: described ground current collector (2) and described line current collector (3) all adopt current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973685.8U CN205229391U (en) | 2015-11-30 | 2015-11-30 | Insulating on -line monitoring system of high tension cable sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973685.8U CN205229391U (en) | 2015-11-30 | 2015-11-30 | Insulating on -line monitoring system of high tension cable sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229391U true CN205229391U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520973685.8U Active CN205229391U (en) | 2015-11-30 | 2015-11-30 | Insulating on -line monitoring system of high tension cable sheath |
Country Status (1)
| Country | Link |
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| CN (1) | CN205229391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735851A (en) * | 2020-07-21 | 2020-10-02 | 国网山东省电力公司潍坊市寒亭区供电公司 | Cable insulation layer on-line monitoring device and monitoring method thereof |
-
2015
- 2015-11-30 CN CN201520973685.8U patent/CN205229391U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735851A (en) * | 2020-07-21 | 2020-10-02 | 国网山东省电力公司潍坊市寒亭区供电公司 | Cable insulation layer on-line monitoring device and monitoring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |