CN205280889U - High tension cable typical case defect emulation test platform - Google Patents

High tension cable typical case defect emulation test platform Download PDF

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Publication number
CN205280889U
CN205280889U CN201620022854.4U CN201620022854U CN205280889U CN 205280889 U CN205280889 U CN 205280889U CN 201620022854 U CN201620022854 U CN 201620022854U CN 205280889 U CN205280889 U CN 205280889U
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CN
China
Prior art keywords
cable
gis
defect
intermediate head
cable body
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Withdrawn - After Issue
Application number
CN201620022854.4U
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Chinese (zh)
Inventor
曹俊平
王少华
胡文堂
刘浩军
周象贤
李特
蒋愉宽
于淼
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201620022854.4U priority Critical patent/CN205280889U/en
Application granted granted Critical
Publication of CN205280889U publication Critical patent/CN205280889U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a high tension cable typical case defect emulation test platform. Do not develop at present the emulation test analysis of high tension cable body, terminal and all kinds of defects of intermediate head as yet. The utility model discloses a step up the unit, rise to flow an unit, cable model unit and simulation return circuit, its characterized in that: the unit that steps up include output voltage continuously adjustable pressure device and GIS subassembly, the pressure device power supply is pressed and is given the GIS subassembly, the GIS subassembly include the isolation earthing switch and the at least three GIS cable storehouse of four at least constitution " one advances many plays " connected modes, constitute a return circuit as test circuit by foretell 1 -2 strip cable body, isolation earthing switch, GIS cable storehouse, the simulation return circuit be the closed -loop that cable constitutes. The utility model discloses true analog cable actual motion operating mode contains defect intermediate head and adopts plug -in structure and this body coupling of cable, can all kinds of typical defect of repeated simulation, and the high -usage.

Description

High-tension cable typical defect simulation test platform
Technical field
The utility model relates to high-tension cable defect emulation field, especially a kind of high-tension cable typical defect simulation test platform.
Background technology
Authentic and valid simulation test platform probes into electric cable stoppage mechanism, checks various detection means validity and evaluates the basis of cable state.
Along with widely using of XLPE cable, particularly in long-time running process, cable (comprises body and annex) and is subject to the impact of the factors such as electric field, heat effect, mechanical stress, chemical corrosion and envrionment conditions, and quality of insulation deteriorates gradually, causes the destruction of insulation system most probably. How accurate by effective monitoring means, to grasp cable body and annex in real time running status, avoids because cable body and annex fault puncture the large area blackout caused, and is the important topic ensureing electric power safety conveying. Once repeatedly there is cable fault in Zhejiang electrical network high-tension cable, seriously have impact on the safety of electric power load, stable transfer.
At present, it is domestic that to build electric cable stoppage simulation test platform less, Zhejiang Province also not yet builds cables simulation test platform, not carrying out the l-G simulation test analysis of all kinds of defect of high-tension cable body, terminal and intermediate head, the simultaneous test means for the corresponding detection technique of all kinds of electric cable stoppage also need perfect. It is therefore desirable to by building high-tension cable typical defect simulation test platform, furtherd investigate by cable state inspection, expand and promote cable fault diagnosis and state evaluation ability.
Practical novel content
Technical problem to be solved in the utility model is the defect overcoming the existence of above-mentioned prior art, it is provided that a kind of high-tension cable typical defect simulation test platform, to improve high-tension cable defect l-G simulation test ability.
For achieving the above object, the utility model adopts following technical scheme: high-tension cable typical defect simulation test platform, comprises boosting unit, up-flow unit, cable model unit and simulation loop,
Described cable model unit comprise the first cable body, the 2nd cable body, the 3rd cable body, containing defect intermediate head, intact intermediate head, the first composite bushing outdoor terminal, the 2nd composite bushing outdoor terminal, containing defect composite bushing outdoor terminal and the wire for connecting two terminals; Intact intermediate head is connected in the first cable body, it is connected in the 2nd cable body containing defect intermediate head, the tail end being connected to the 3rd cable body containing defect composite bushing outdoor terminal, first and second composite bushing outdoor terminal is connected to the tail end of first and second cable body;
Described boosting unit comprises pressurizing device and the GIS assembly of output voltage continuously adjustabe, and pressurizing device voltage supplied is to GIS assembly; Described GIS assembly comprises isolation earthing switch and at least three GIS cable bin of at least four formations " one enters more " mode of connection, the isolation earthing switch being positioned at GIS component inputs is connected with pressurizing device, one end of three GIS cable bin connects three isolation earthing switch being positioned at GIS assembly output terminal respectively, and the other end is connected with first, second and third above-mentioned cable body respectively;
Forming a loop as test loop by above-mentioned 1-2 bar cable body, isolation earthing switch, GIS cable bin, described simulation loop is the loop line that a cable is formed;
Described up-flow unit comprises the punching that test loop and simulation loop carry out up-flow simultaneously and becomes, becomes the voltate regulator of a winding offer power supply and the housing for controlling voltage regulator operation into punching.
The utility model adopts GIS mode of connection, close with electrical network mode of connection. The utility model can simultaneously to test loop pressurization and up-flow, can true simulation cable actual operating mode, improve the single-mode only carrying out pressurization simulation test at present. GIS assembly is adopted to be connected between pressurizing device with cable, " one enters more " the structure mode of employing, (both can carry out separately single spur track voltage simulation test in flexible combination test loop, again can two branch road carry out electric current simulation test), electric cable stoppage can be studied on the impact of GIS assembly simultaneously.
Further, the described defect intermediate head that contains adopts plug formula structure to be connected with the 2nd cable body. Adopt plug formula structure, can repeat to simulate all kinds of typical defect, utilization ratio height. The current many employings of cable intermediate joint realistic model are fixed, cannot carry out adjusting and changing, and plug formula structure, can adjust defect severity according to Test condition after once arranging defect, simultaneously when not destroying major insulation, can change other defect kind.
Further, described plug formula structure is two and lays respectively at the plug formula GIS terminal forward and backward containing defect intermediate head, can conveniently carry out segment intermediate head replacement, avoids waste.
Further, described pressurizing device is that insulated barrel-type puts transformer without office, output voltage continuously adjustabe.
Further, described isolation earthing switch has five, forms the connection structure of " enters four goes out "; Described GIS cable bin has four, one as subsequent use, its excess-three is connected with first, second and third cable body respectively. Under normal circumstances, only use three GIS cable bin and it is positioned at three isolation earthing switch of GIS assembly output terminal. Certain primary Ioops because of defects simulation test damaged time, can continue with other residue loop with the use of. The array mode of test loop is controlled by GIS assembly, cable intermediate joint can be met, the office of terminal typical defect puts, temperature rise test boosting requirement.
Further, it also comprises control and measuring unit, this control and measuring unit comprise temperature measuring system, measuring system is put in office, grounding circulation measuring system and control display platform, and the data that measuring system and grounding circulation measuring system are put in temperature measuring system, office are transferred to control display platform. The utility model simultaneously the office of being integrated with put detection technique, thermometry and grounding circulation Monitoring techniques, the l-G simulation test analysis of all kinds of typical defect of high-voltage cable middle joint can be carried out, to comparison and the research of all kinds of high-tension cable detection technique, expand and promote cable fault diagnosis and state evaluation ability.
Further, described temperature measuring system comprises distributed temperature measuring device and built-in temperature-measuring device, on first, second and third described cable body, distributed temperature measuring device being all housed, described is equipped with built-in temperature-measuring device containing defect intermediate head and intact intermediate head.
Further, described office puts measuring system and comprises built-in office and put Monitoring systems and Monitoring systems is put in high frequency office, first, second and third described cable body is all equipped with high frequency office and puts Monitoring systems, described containing defect intermediate head and intact intermediate head, built-in office be housed and put Monitoring systems.
Further, described grounding circulation measuring system comprises ground connection case, is positioned at the mutual inductor of ground connection case, detection control device and upper computer server, mutual inductor by the electric current signal that obtains of detection after testing controller and upper computer server transport to controlling display platform.
Compared with prior art, the utility model has following useful effect: the utility model can real simulation cable actual operating mode; Adopt GIS assembly to be connected between pressurizing device with cable, adopt " one enters " structure mode more, get final product flexible combination test loop, electric cable stoppage can be studied to GIS component influences simultaneously; Adopt plug formula structure containing defect intermediate head, can repeat to simulate all kinds of typical defect, utilization ratio height; Detection technique, thermometry and grounding circulation Monitoring techniques are put in the office of being integrated with simultaneously, the l-G simulation test analysis of all kinds of typical defect of high-voltage cable middle joint can be carried out, to comparison and the research of all kinds of high-tension cable detection technique, expand and improve cable fault diagnosis and state evaluation ability.
Accompanying drawing explanation
In order to the technical scheme being illustrated more clearly in the utility model embodiment, and the technical scheme with background technology contrasts, and is briefly described to the required accompanying drawing used in the utility model embodiment and background technology description below. It is appreciated that the utility model embodiment accompanying drawing in the following describes is only part embodiment, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is the schematic diagram of the utility model boosting unit.
Fig. 3 is the schematic diagram of the utility model up-flow unit and partial cables model unit.
Fig. 4 is the schematic diagram that the utility model contains defect intermediate head part.
Embodiment
Below in conjunction with Figure of description, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described the utility model embodiment is only the utility model part embodiment, instead of whole embodiments. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
1. boosting unit
The main assembly of boosting unit is that insulated barrel-type puts transformer and GIS assembly without office. Transformer output voltage continuously adjustabe, reaches as high as 280kV, and GIS assembly is made up of 5 isolation earthing switch (K0, K1, K2, K3, K4) and 4 GIS cable bin, forms " one enters four goes out " structure mode. Wherein to connect first, second and third cable body C1, C2, C3,1 GIS cable bin respectively for subsequent use for 3 GIS cable bin. The array mode of test loop is controlled by GIS assembly, 220kV intermediate head can be met, the office of terminal typical defect puts, temperature rise test boosting requirement.
Up-flow unit
Described up-flow unit is become by the punching that test loop and simulation loop carry out up-flow simultaneously, is become the voltate regulator of a winding offer power supply into punching and form for controlling the housing of voltage regulator operation, most High Output Current can reach 1500A, it is possible to meets cable test platform overload test requirements document.
3. cable model unit
Described cable model unit by the first cable body C1, the 2nd cable body C2, the 3rd cable body C3, containing defect intermediate head Jx, intact intermediate head J1, the first composite bushing outdoor terminal T1, the 2nd composite bushing outdoor terminal T2, containing defect composite bushing outdoor terminal Tx with form for connecting the wire of two terminals; Intact intermediate head J1 is connected in the first cable body C1, it is connected in the 2nd cable body C2 containing defect intermediate head Jx, the tail end being connected to the 3rd cable body C3 containing defect composite bushing outdoor terminal Tx, first and second composite bushing outdoor terminal T1, T2 are connected to the tail end of first and second cable body C1, C2. Refer to that floating potential, outer semiconducting layer incision position semiconduction are most advanced and sophisticated, stress cone installs dislocation, major insulation draws air gap in wound, major insulation, outer semiconducting layer incision position step air gap, outer semiconducting layer incision position major insulation incised wound etc. containing the defect in defect intermediate head Jx. Refer to that few oil, floating potential, major insulation draw wound etc. containing the defect in defect composite bushing outdoor terminal Tx. Described adopt two to lay respectively at plug formula GIS terminal Tx1, the Tx2 containing defect intermediate head is forward and backward containing defect intermediate head to be connected with the 2nd cable body.
In the test loop being made up of the 2nd cable body C2, it is one group of trial model that can dismantle replacement containing defect intermediate head Jx, plug formula GIS terminal Tx1, plug formula GIS terminal Tx2.
4. control and measurement unit
1) measuring system is put in office
Main assembly comprises built-in office and puts Monitoring systems and Monitoring systems is put in high frequency office, can realize intact intermediate head, defect intermediate head, defect terminal office put monitoring.
2) temperature measuring system
Main assembly comprises distributed temperature measuring device (DTS) and built-in temperature-measuring device. Wherein, the accurate acquisition of cable temperature distributed intelligence can be realized based on DTS, the accurate acquisition of intermediate head place temperature signal can be realized based on built-in temperature-measuring device.
3) grounding circulation measuring system
Main assembly comprises on-the-spot mutual inductor and ground connection case, detection control device, upper computer server etc. Monitor cable sheath insulation status by monitoring cable sheath electric current, carry out corresponding data analysis, management and breakdown judge according to field condition.
4) display platform is controlled
Main assembly comprises experiment control system and Automated library system monitoring and display system. Boosting rectifier control, up-flow control etc. are put in the controlling functions office of comprising. Concentrate show that test current, voltage, office are put, temperature and grounding circulation signal, show current operating condition of test (the electric cable stoppage type simulated).
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the utility model. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments. Therefore, the utility model can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.

Claims (9)

1. high-tension cable typical defect simulation test platform, comprises boosting unit, up-flow unit, cable model unit and simulation loop, it is characterised in that:
Described cable model unit comprise the first cable body, the 2nd cable body, the 3rd cable body, containing defect intermediate head, intact intermediate head, the first composite bushing outdoor terminal, the 2nd composite bushing outdoor terminal, containing defect composite bushing outdoor terminal and the wire for connecting two terminals; Intact intermediate head is connected in the first cable body, it is connected in the 2nd cable body containing defect intermediate head, the tail end being connected to the 3rd cable body containing defect composite bushing outdoor terminal, first and second composite bushing outdoor terminal is connected to the tail end of first and second cable body;
Described boosting unit comprises pressurizing device and the GIS assembly of output voltage continuously adjustabe, and pressurizing device voltage supplied is to GIS assembly; Described GIS assembly comprises isolation earthing switch and at least three GIS cable bin of at least four formations " one enters more " mode of connection, the isolation earthing switch being positioned at GIS component inputs is connected with pressurizing device, one end of three GIS cable bin connects three isolation earthing switch being positioned at GIS assembly output terminal respectively, and the other end is connected with first, second and third above-mentioned cable body respectively;
Forming a loop as test loop by above-mentioned 1-2 bar cable body, isolation earthing switch, GIS cable bin, described simulation loop is the loop line that a cable is formed;
Described up-flow unit comprises the punching that test loop and simulation loop carry out up-flow simultaneously and becomes, becomes the voltate regulator of a winding offer power supply and the housing for controlling voltage regulator operation into punching.
2. high-tension cable typical defect simulation test platform according to claim 1, it is characterised in that, described adopts plug formula structure to be connected with the 2nd cable body containing defect intermediate head.
3. high-tension cable typical defect simulation test platform according to claim 2, it is characterised in that, described plug formula structure is two and lays respectively at the plug formula GIS terminal forward and backward containing defect intermediate head.
4. high-tension cable typical defect simulation test platform according to claim 1, it is characterised in that, described pressurizing device is that insulated barrel-type puts transformer without office.
5. high-tension cable typical defect simulation test platform according to claim 1, it is characterised in that, described isolation earthing switch has five, forms the connection structure of " enters four goes out ";
Described GIS cable bin has four, one as subsequent use, its excess-three is connected with first, second and third cable body respectively.
6. high-tension cable typical defect simulation test platform according to claim 1, it is characterized in that, it also comprises control and measuring unit, this control and measuring unit comprise temperature measuring system, measuring system is put in office, grounding circulation measuring system and control display platform, and the data that measuring system and grounding circulation measuring system are put in temperature measuring system, office are transferred to control display platform.
7. high-tension cable typical defect simulation test platform according to claim 6, it is characterized in that, described temperature measuring system comprises distributed temperature measuring device and built-in temperature-measuring device, on first, second and third described cable body, distributed temperature measuring device being all housed, described is equipped with built-in temperature-measuring device containing defect intermediate head and intact intermediate head.
8. high-tension cable typical defect simulation test platform according to claim 6, it is characterized in that, described office puts measuring system and comprises built-in office and put Monitoring systems and Monitoring systems is put in high frequency office, first, second and third described cable body is all equipped with high frequency office and puts Monitoring systems, described containing defect intermediate head and intact intermediate head, built-in office be housed and put Monitoring systems.
9. high-tension cable typical defect simulation test platform according to claim 6, it is characterized in that, described grounding circulation measuring system comprises ground connection case, is positioned at the mutual inductor of ground connection case, detection control device and upper computer server, mutual inductor by the electric current signal that obtains of detection after testing controller and upper computer server transport to controlling display platform.
CN201620022854.4U 2016-01-11 2016-01-11 High tension cable typical case defect emulation test platform Withdrawn - After Issue CN205280889U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105510786A (en) * 2016-01-11 2016-04-20 国网浙江省电力公司电力科学研究院 Typical defect simulated testing platform of high-voltage cable
CN106066452A (en) * 2016-08-03 2016-11-02 国网浙江省电力公司电力科学研究院 Quantity of state detecting system under a kind of high tension cable typical defect

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105510786A (en) * 2016-01-11 2016-04-20 国网浙江省电力公司电力科学研究院 Typical defect simulated testing platform of high-voltage cable
CN105510786B (en) * 2016-01-11 2018-10-09 国网浙江省电力公司电力科学研究院 A kind of high-tension cable typical defect simulation test platform
CN106066452A (en) * 2016-08-03 2016-11-02 国网浙江省电力公司电力科学研究院 Quantity of state detecting system under a kind of high tension cable typical defect

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AV01 Patent right actively abandoned

Granted publication date: 20160601

Effective date of abandoning: 20181009

AV01 Patent right actively abandoned