CN103123381B - For the cable outlet system of high-tension cable oscillation wave partial discharge detection system - Google Patents
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- CN103123381B CN103123381B CN201210590364.0A CN201210590364A CN103123381B CN 103123381 B CN103123381 B CN 103123381B CN 201210590364 A CN201210590364 A CN 201210590364A CN 103123381 B CN103123381 B CN 103123381B
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 230000010355 oscillation Effects 0.000 title claims abstract description 46
- 239000007787 solid Substances 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000002459 sustained effect Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000003534 oscillatory effect Effects 0.000 description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 description 4
- 239000004703 cross-linked polyethylene Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
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Abstract
Cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, comprise UUT side bindiny mechanism, solid switch side bindiny mechanism and high-tension cable connecting line, wherein, UUT side bindiny mechanism comprises UUT web member and the first cable web member, and described UUT web member is connected with UUT; Solid switch side bindiny mechanism comprises solid switch web member and the second cable web member, and described solid switch web member is connected with solid switch; The two ends of high-tension cable connecting line are connected with the described first cable web member of described UUT side bindiny mechanism and the described second cable web member of described solid switch side bindiny mechanism respectively.Said system structure is simple, and make cable outlet part be connected distance comparatively greatly with cable wave of oscillation checkout equipment by high-tension cable connecting line, not easily produce corona, electric discharge, this system stable connection is reliable, without shelf depreciation, very favourable to on-the-spot test.
Description
Technical field
The present invention relates to cable outlet structure in a kind of 10kv oscillatory wave system, specifically a kind of cable outlet system for high-tension cable oscillation wave partial discharge detection system, belongs to cable oscillatory wave partial discharge detection technique field.
Background technology
The detection method of cable local discharge mainly contains following three kinds: 1, under power-frequency voltage, cable local discharge detects; 2, under Ultra-low Frenquency Voltage, cable local discharge detects; 3, under DC Damping oscillating voltage, cable local discharge detects; Method 1 wherein, because the electric capacity of power cable is large, is difficult to carry out at the scene the Partial Discharge Detection under power-frequency voltage; Method 2 wherein requires that test period is long, comparatively large to cable insulation damage, can cause the new defect in cable; Method 3 wherein, due to XLPE(crosslinked polyethylene, crosslinked polyethylene) insulation resistance of power cable is higher, and voltage's distribiuting difference is larger under AC and DC, after carrying out DC voltage withstand test, in XLPE cable, particularly electric cable stoppage place can remain a large amount of space charge, after cable puts into operation, these space charges often cause the dielectric breakdown accident of cable.Therefore said method is not all suitable for the Partial Discharge Detection to extrusion molding power cable.
Wave of oscillation test macro (OWTS, English full name is Oscillating Waveform Test System), utilize the series resonance principal of cable equivalent capacitance and inductance insulated conductor, make oscillating voltage electric cable stoppage place in repeatedly reversal process inspire local discharge signal, measure this signal by high-frequency coupler thus judge the quality of cable.OWTS wave of oscillation cable local discharge detection and positioning technology is adopted to test 10kV distribution cable, can Timeliness coverage and location latency shelf depreciation defect and can not damage cable, greatly can improve power supply reliability.Chinese patent literature CN102565637A discloses a kind of cable oscillatory wave partial discharge detection system measured based on asynchronous double-end, specifically shown in Figure 1, this system comprise cable under test and respectively at cable under test connect wave of oscillation generating means and signals collecting subsystem, program control wide journey shelf depreciation prover, host computer.Wherein, wave of oscillation generating means produces damp oscillatory wave under the control of host computer, the waveform collected and data are transferred to upper computer analyzing software to focus on, are analyzed by the signals collecting subsystem at cable two ends, obtain the judgement with or without shelf depreciation generation and partial discharge quantity, thus realize the test of cable local discharge.
Cable oscillatory wave partial discharge detection system belongs to a kind of form of offline inspection, when using cable wave of oscillation detection system detection streamer shelf depreciation situation, clamp is passed through in general employing, cable outgoing line part is connected with cable wave of oscillation checkout equipment by the mode that screw even welds, what have even uses insulating tape to be fixed and to realize to insulate in cable outlet part and cable wave of oscillation checkout equipment junction, this mode is very coarse, cable outlet part is connected distance with cable wave of oscillation checkout equipment near, field intensity is more concentrated, easily cause corona, electric discharge, can cause time serious and puncture, and it is not fixing firm, connect unstable, very inconvenient when mounting and dismounting, and very easily unnecessary injury is caused to cable.The most important thing is, adopt existing connected mode, can cause when the shelf depreciation situation with cable wave of oscillation detection system detection streamer, because cable outlet part and cable wave of oscillation checkout equipment are fixed insecure, there is shelf depreciation in cable outlet part, and cause the result of detection inaccurate.In order to solve the problem, the present invention proposes a kind of cable outlet structure, the present invention design small and exquisite, be easy to cable to be connected with cable oscillatory wave partial discharge checkout equipment without shelf depreciation, the accuracy of cable oscillatory wave partial discharge detection system can be improved.
Summary of the invention
Technical matters to be solved by this invention is that in prior art, existing connected mode cable outlet part is connected the technical matters that distance closely easily causes corona, electric discharge with cable wave of oscillation checkout equipment, thus provides a kind of safe and reliable cable outlet system for high-tension cable oscillation wave partial discharge detection system.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
For a cable outlet system for high-tension cable oscillation wave partial discharge detection system, comprise,
UUT side bindiny mechanism, comprise UUT web member and the first cable web member, described UUT web member is connected with UUT;
Solid switch side bindiny mechanism, comprise solid switch web member and the second cable web member, described solid switch web member is connected with solid switch;
High-tension cable connecting line, its two ends are connected with the described first cable web member of described UUT side bindiny mechanism and the described second cable web member of described solid switch side bindiny mechanism respectively.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, described UUT web member is hook, and described first cable web member is UUT lateral electrode; The articulated end of described hook is affiliated in described UUT, and the stiff end of described hook is connected with the first end of described UUT lateral electrode, and the second end of described UUT lateral electrode is connected with described high-tension cable connecting line.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, the stiff end of described hook and the first end of described UUT lateral electrode are fixed by screw.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, described second cable web member is cable lateral electrode, described solid switch web member is described solid switch lateral electrode, the first end of described cable lateral electrode is connected with described high-tension cable connecting line, second end of described cable lateral electrode is connected with the first end of described solid switch lateral electrode, and the second end of described solid switch lateral electrode is connected with described solid switch.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, the second end of described cable lateral electrode and the first end of described solid switch lateral electrode are fixed by screw.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, the second end in described UUT lateral electrode and the first end of described cable lateral electrode overlap respectively and have insulating sleeve.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, described UUT side bindiny mechanism and described solid switch side bindiny mechanism are copper electrode or the silver electrode of withstand voltage 60kV, and described high-tension cable connecting line is withstand voltage 100kV and the cable of sustained ceiling current 100A.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, corners process is carried out in the end of described hook, described UUT lateral electrode, described cable lateral electrode and described solid switch lateral electrode.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, the length of described UUT lateral electrode and described cable lateral electrode is not less than 50mm, and external diameter is not less than 20mm.
The described cable outlet system for high-tension cable oscillation wave partial discharge detection system, described UUT lateral electrode is the electrode that structure is identical with described cable lateral electrode.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, comprise UUT side bindiny mechanism, solid switch side bindiny mechanism and high-tension cable connecting line, wherein, UUT side bindiny mechanism comprises UUT web member and the first cable web member, and described UUT web member is connected with UUT; Solid switch side bindiny mechanism comprises solid switch web member and the second cable web member, and described solid switch web member is connected with solid switch; The two ends of high-tension cable connecting line are connected with the described first cable web member of described UUT side bindiny mechanism and the described second cable web member of described solid switch side bindiny mechanism respectively.Said system structure is simple, cable outlet part is made to be connected apart from larger with cable wave of oscillation checkout equipment by high-tension cable connecting line, not easily produce corona, electric discharge, this system stable connection is reliable, without shelf depreciation, compact, put without office, be easy to connect, good portability, very favourable to on-the-spot test.
(2) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, described UUT web member is hook, hook is demountable parts, this design flexible structure, easy dismounting, hook can be connected on cable or relevant high-tension apparatus very easily simultaneously, and it is firm to connect, without the need to manually carrying out adhesive tape winding and the extra work such as fixing, work efficiency can be significantly improved.
(3) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, the stiff end of described hook and the first end of described UUT lateral electrode are fixed by screw, second end of described cable lateral electrode and the first end of described solid switch lateral electrode are fixed by screw, this mode had both been convenient to be fixedly connected with, be convenient to again dismounting, it is firm to connect, and without the need to manually carrying out adhesive tape winding, can significantly improve work efficiency.
(4) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, the second end in described UUT lateral electrode and the first end of described cable lateral electrode overlap respectively and have insulating sleeve, for stopping the generation of discharging.
(5) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, corners process is carried out in the end of described hook, described UUT lateral electrode, described cable lateral electrode and described solid switch lateral electrode, reduces the possibility of electric discharge.
(6) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, described UUT lateral electrode is the electrode that structure is identical with described cable lateral electrode, actual test is with when being connected, without the need to distinguishing, improve the versatility of use, be convenient to connect, be simple and easy to use, fool proof.
(7) the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention, the length of described UUT lateral electrode and described cable lateral electrode is not less than 50mm, external diameter is not less than 20mm, and this set makes connection firm, reduces electromagnetic interference (EMI).
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the structural representation of the cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention;
Fig. 2 is the front elevation of solid switch lateral electrode described in the system shown in Fig. 1;
Fig. 3 is the side view of solid switch lateral electrode described in the system shown in Fig. 1
Fig. 4 be described UUT lateral electrode identical with described cable side electrode structure time schematic diagram.
In figure, Reference numeral is expressed as: 1-UUT, 2-UUT side bindiny mechanism, 21-UUT web member, 22-first cable web member, 3-solid switch side bindiny mechanism, 31-second cable web member, 32-solid switch web member, 321-solid switch lateral electrode, 4-high-tension cable connecting line, 5-solid switch, 6-round platform ring, 7-cylindrical rod, 8-round platform, 9-disk.
Embodiment
The structure of a kind of cable outlet system for high-tension cable oscillation wave partial discharge detection system of the present invention as shown in Figure 1, it comprises UUT side bindiny mechanism 2, solid switch side bindiny mechanism 3 and high-tension cable connecting line 4, wherein, UUT side bindiny mechanism 2 comprises UUT web member 21 and the first cable web member 22, and described UUT web member 21 is connected with UUT 1; Solid switch side bindiny mechanism 3 comprises solid switch web member 32 and the second cable web member 31, and described solid switch web member 32 is connected with solid switch 5; The two ends of high-tension cable connecting line 4 are connected with the described first cable web member 22 of described UUT side bindiny mechanism 2 and the described second cable web member 31 of described solid switch side bindiny mechanism 3 respectively, in the present embodiment, described high-tension cable connecting line 4 is withstand voltage 100kV and the cable of sustained ceiling current 100A.
Described UUT side bindiny mechanism 2 and described solid switch side bindiny mechanism 3 are copper electrode or the silver electrode of withstand voltage 60kV.In the present embodiment, described UUT side bindiny mechanism 2 and described solid switch side bindiny mechanism 2 are the copper electrode of withstand voltage 60kV, for ensureing the generation of corona free.
Described UUT 1 comprises high-tension cable and high-voltage capacitance, and in the present embodiment, described UUT 1 is high-voltage capacitance.
In the present embodiment, described UUT web member 21 is hook, and described first cable web member 22 is UUT lateral electrode; The articulated end of described hook is affiliated in described high-voltage capacitance, and the stiff end of described hook is connected with the first end of described UUT lateral electrode, and the second end of described UUT lateral electrode is connected with described high-tension cable connecting line 4.
Described hook is demountable parts, this design flexible structure, easy dismounting, hook can be connected on cable or relevant high-tension apparatus very easily simultaneously, it is firm to connect, without the need to manually carrying out adhesive tape winding and the extra work such as fixing, work efficiency can be significantly improved.
The length of described UUT lateral electrode is not less than 50mm, and external diameter is not less than 20mm, specifically determines size with making requirement according to actual needs; In the present embodiment, the length of described UUT lateral electrode is 100mm, and external diameter is 50mm.
In the present embodiment, described UUT lateral electrode inside is hollow, the stiff end port of described hook is provided with groove, the outside surface of described groove is provided with screw, the outside surface of the first end port of described UUT lateral electrode is provided with screw, the first end of described UUT lateral electrode puts into the groove of described hook, and the screw of the screw on described groove and described UUT lateral electrode is fixed by screw.
As other embodiments, described hook and described UUT lateral electrode can be integrated design.
As other embodiments, the articulated end of described hook is affiliated in described high-voltage capacitance, the stiff end of described hook is directly connected with described high-tension cable connecting line 4, and the cable core of described high-tension cable connecting line 4 is connected directly between the groove of the stiff end of described hook.
In the present embodiment, described second cable web member 31 is cable lateral electrode, described solid switch web member 32 is described solid switch lateral electrode 321, the first end of described cable lateral electrode is connected with described high-tension cable connecting line 4, second end of described cable lateral electrode is connected with the first end of described solid switch lateral electrode 321, the second end of described solid switch lateral electrode 321 and the Electrode connection of described solid switch.
The length of described cable lateral electrode is not less than 50mm, and external diameter is not less than 20mm; In the present embodiment, the length of described cable lateral electrode is 100mm, and external diameter is 50mm.
In the present embodiment, corners process is carried out in the end of described hook, described UUT lateral electrode, described cable lateral electrode and described solid switch lateral electrode 321, reduces the possibility of electric discharge.
In the present embodiment, described cable lateral electrode inside is hollow; The outside surface of the second end of described cable lateral electrode is provided with screw, shown in Fig. 2, Fig. 3, the round platform ring 6 of depression centered by below described solid switch lateral electrode 321, described round platform ring 6 fixations, the concentric cylindrical rod 7 arranged with described round platform ring 6 is had in described round platform ring 6, the described cylindrical rod 7 of described solid switch lateral electrode 321 puts into the second end inside of described cable lateral electrode, is fastenedly connected by the screw of screw through the second end outside surface of described cable lateral electrode.
Part for non-electrical adopts electric insulation material to carry out embedding, in the present embodiment, adopts epoxy resin to carry out embedding, and shown in Fig. 2, Fig. 3, round platform adopts the concentric round platform 8 that arranges of epoxy resin encapsulated two and described round platform ring 6 and disk 9 outward.
In the present embodiment, the first end of the second end in described UUT lateral electrode and described cable lateral electrode overlaps respectively and has insulating sleeve, for stopping the generation of discharging.
As other embodiments, described cable lateral electrode and described solid switch lateral electrode 321 are integrated design.
As other embodiments, shown in Figure 4, described UUT lateral electrode is the electrode that structure is identical with described cable lateral electrode, and actual test, with when being connected, without the need to distinguishing, improves the versatility of use, is convenient to connect, is simple and easy to use, fool proof.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention
.
Claims (9)
1., for a cable outlet system for high-tension cable oscillation wave partial discharge detection system, it is characterized in that, comprise,
UUT side bindiny mechanism, comprise UUT web member and the first cable web member, described UUT web member is connected with UUT;
Solid switch side bindiny mechanism, comprise solid switch web member and the second cable web member, described solid switch web member is connected with solid switch;
High-tension cable connecting line, its two ends are connected with the described first cable web member of described UUT side bindiny mechanism and the described second cable web member of described solid switch side bindiny mechanism respectively;
Described second cable web member is cable lateral electrode, described solid switch web member is described solid switch lateral electrode, the first end of described cable lateral electrode is connected with described high-tension cable connecting line, second end of described cable lateral electrode is connected with the first end of described solid switch lateral electrode, and the second end of described solid switch lateral electrode is connected with described solid switch;
Described cable lateral electrode inside is hollow, the outside surface of the second end of described cable lateral electrode is provided with screw, the round platform ring of depression centered by below described solid switch lateral electrode, the cylindrical rod that arrange concentric on described round platform ring is had in described round platform ring, the second end that described cylindrical rod puts into described cable lateral electrode is inner, is fastenedly connected by the screw of screw through the second end outside surface of described cable lateral electrode.
2. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 1, is characterized in that, described UUT web member is hook, and described first cable web member is UUT lateral electrode; The articulated end of described hook is affiliated in described UUT, and the stiff end of described hook is connected with the first end of described UUT lateral electrode, and the second end of described UUT lateral electrode is connected with described high-tension cable connecting line.
3. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 2, is characterized in that, the stiff end of described hook and the first end of described UUT lateral electrode are fixed by screw.
4. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 3, is characterized in that, the second end of described cable lateral electrode and the first end of described solid switch lateral electrode are fixed by screw.
5. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 4, is characterized in that, the first end of the second end in described UUT lateral electrode and described cable lateral electrode overlaps respectively and has insulating sleeve.
6. according to the arbitrary described cable outlet system for high-tension cable oscillation wave partial discharge detection system of claim 2-5, it is characterized in that, described UUT side bindiny mechanism and described solid switch side bindiny mechanism are copper electrode or the silver electrode of withstand voltage 60kV, and described high-tension cable connecting line is withstand voltage 100kV and the cable of sustained ceiling current 100A.
7. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 6, it is characterized in that, corners process is carried out in the end of described hook, described UUT lateral electrode, described cable lateral electrode and described solid switch lateral electrode.
8. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 7, is characterized in that, the length of described UUT lateral electrode and described cable lateral electrode is not less than 50mm, and external diameter is not less than 20mm.
9. the cable outlet system for high-tension cable oscillation wave partial discharge detection system according to claim 7 or 8, is characterized in that, described UUT lateral electrode is the electrode that structure is identical with described cable lateral electrode.
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| CN201210590364.0A CN103123381B (en) | 2012-12-31 | 2012-12-31 | For the cable outlet system of high-tension cable oscillation wave partial discharge detection system |
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| CN201210590364.0A CN103123381B (en) | 2012-12-31 | 2012-12-31 | For the cable outlet system of high-tension cable oscillation wave partial discharge detection system |
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| CN103123381B true CN103123381B (en) | 2015-11-04 |
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| CN105388401A (en) * | 2015-10-26 | 2016-03-09 | 云南电网有限责任公司电力科学研究院 | Novel cable oscillation wave partial discharge detection system |
| CN106443090A (en) * | 2016-12-01 | 2017-02-22 | 广州供电局有限公司 | Segmental conductor resistance test auxiliary tool and test device |
| CN110208627B (en) * | 2019-06-20 | 2021-06-25 | 应急管理部四川消防研究所 | Method for testing fire prevention and control capability of over-current ignition source prevention and control device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062906U (en) * | 1989-10-12 | 1990-09-26 | 魏祥华 | High-voltage cable hook |
| US6930491B2 (en) * | 2000-01-27 | 2005-08-16 | Pirelli Cables (2000) Limited | Partial discharge detection test link, partial discharge detection system and methods for detecting partial discharge on a power cable |
| JP2008216145A (en) * | 2007-03-06 | 2008-09-18 | Tokyo Electric Power Co Inc:The | Partial discharge detection method |
| CN101354415A (en) * | 2008-07-23 | 2009-01-28 | 浙江万马电缆股份有限公司 | Cable test terminal and test method thereof |
| CN101521333A (en) * | 2009-04-10 | 2009-09-02 | 湖南中科电气股份有限公司 | High-current, waterproof and high-temperature resisting cable connector |
| CN201352506Y (en) * | 2008-07-04 | 2009-11-25 | 骆家星 | Low-voltage shunt capacitor with bolt electrode contacts |
| CN101937771A (en) * | 2009-06-30 | 2011-01-05 | 广东风华高新科技股份有限公司 | Preparation method of high voltage multilayer ceramic capacitor |
| CN202393868U (en) * | 2011-11-23 | 2012-08-22 | 华南理工大学 | Cable oscillatory wave local discharge measurement and location system based on cloud calculation |
| CN202534806U (en) * | 2012-02-29 | 2012-11-14 | 洛阳栾川钼业集团股份有限公司 | Acousto-optic electric leakage inspection alarm cable hook |
-
2012
- 2012-12-31 CN CN201210590364.0A patent/CN103123381B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062906U (en) * | 1989-10-12 | 1990-09-26 | 魏祥华 | High-voltage cable hook |
| US6930491B2 (en) * | 2000-01-27 | 2005-08-16 | Pirelli Cables (2000) Limited | Partial discharge detection test link, partial discharge detection system and methods for detecting partial discharge on a power cable |
| JP2008216145A (en) * | 2007-03-06 | 2008-09-18 | Tokyo Electric Power Co Inc:The | Partial discharge detection method |
| CN201352506Y (en) * | 2008-07-04 | 2009-11-25 | 骆家星 | Low-voltage shunt capacitor with bolt electrode contacts |
| CN101354415A (en) * | 2008-07-23 | 2009-01-28 | 浙江万马电缆股份有限公司 | Cable test terminal and test method thereof |
| CN101521333A (en) * | 2009-04-10 | 2009-09-02 | 湖南中科电气股份有限公司 | High-current, waterproof and high-temperature resisting cable connector |
| CN101937771A (en) * | 2009-06-30 | 2011-01-05 | 广东风华高新科技股份有限公司 | Preparation method of high voltage multilayer ceramic capacitor |
| CN202393868U (en) * | 2011-11-23 | 2012-08-22 | 华南理工大学 | Cable oscillatory wave local discharge measurement and location system based on cloud calculation |
| CN202534806U (en) * | 2012-02-29 | 2012-11-14 | 洛阳栾川钼业集团股份有限公司 | Acousto-optic electric leakage inspection alarm cable hook |
Non-Patent Citations (1)
| Title |
|---|
| 短电缆振荡波局部放电检测及定位的实验技术研究;何剑;《2011年全国电力电缆安装与运行经验交流会论文集》;20111026;第271页最后一段，第272页第2段，第275页第1.4节第1段，图1-1、1-4 * |
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