CN102353879B - Cable partial discharge test terminal - Google Patents
Cable partial discharge test terminal Download PDFInfo
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- CN102353879B CN102353879B CN 201110189449 CN201110189449A CN102353879B CN 102353879 B CN102353879 B CN 102353879B CN 201110189449 CN201110189449 CN 201110189449 CN 201110189449 A CN201110189449 A CN 201110189449A CN 102353879 B CN102353879 B CN 102353879B
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- cable
- partial discharge
- test terminal
- insulating sleeve
- discharge test
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Abstract
The invention discloses a cable partial discharge test terminal which comprises a voltage equalization cover, an insulation sleeve, and a liquid insulation medium. A bottom of the voltage equalization cover is fixed with a high voltage test cable. The voltage equalization cover connects with a lower end of the insulation sleeve. The liquid insulation medium is placed in space enclosed by the voltage equalization cover and the insulation sleeve. An upper end of the insulation sleeve is provided with a clamping device. According to the invention, since the above technical scheme is employed, the test terminal is convenient and rapid to install, and has small material consumption. Operation is simple, and installation is convenient. A cutting length of a cable terminal is shortened, time of cable cutting and terminal installation are effectively shortened, and test efficiency is raised.
Description
Technical field
The present invention relates to a kind of cable partial discharge test terminal, in particular for midium voltage cable local discharge test terminal.
Background technology
At present, cable manufacturing enterprise and testing agency centering are pressed XLPE cable dispatch from the factory routine test or sampling test, all to carry out the partial discharge test of cable, original cable partial discharge test lubricating cup is fixed on the testing equipment, and can not move, and the two ends stripping of cable is all wanted more than the 1.5m, and the cable two ends are through after the PROCESS FOR TREATMENT, is immersed in to carry out in the insulating oil that office puts and withstand voltage test.
Original test terminal is to be connected on the hv filtering device of local discharge test equipment, is a upright test lubricating cup, is connected to an end of hv filtering device.Terminal is installed inconvenience during wireline test, and the stripping hank of cable and installing cables test terminal approximately need 1 hour, and be both time-consuming, wastes again cable.
On Dec 23rd, 2009, the Chinese invention patent application Publication Specification of disclosed CN101609102A disclosed " mesolow crosslinked cable industrial frequency withstand voltage; partial discharge test terminal structure ", the technical scheme of wherein setting forth is to be filled with certain mixed gas can carry out just that office puts and withstand voltage test in terminal, and, when being installed, this terminal also can be subject to the restriction of cable dimension size, if poor sealing, will leak gas during inflation, test just can't be carried out, just must reinstall and to continue test, both wasted the time like this, test speed is also unhappy, and installs also pretty troublesome.
Summary of the invention
Technical matters to be solved by this invention provides a kind of cable partial discharge test terminal, makes that test terminal is easy for installation, quick, material consumption is few.Shorten cable socket stripping length, effectively shortened cable stripping and terminal set-up time, improved test efficiency.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: cable partial discharge test terminal, comprise grading shield, insulating sleeve, liquid insulating medium, the bottom of described grading shield and Hi-pot test cable are fixed, described grading shield is connected with the lower end of described insulating sleeve, described liquid insulating medium is contained in the space that described grading shield and described insulating sleeve surround, and the upper end of described insulating sleeve is provided with clamping device.
As preferably, the inside bottom surface of described grading shield is provided with some fasteners, to guarantee that cable core contacts well with the grading shield bottom surface.
As preferably, the body of described fastener is the cylinder of diameter 3-4mm, and the head of described fastener is semisphere, guarantees to contact with cable core the generation of avoiding point discharge phenomenon good the time.
As preferably, the root of described fastener is connected with proximal joint, is connected with the Hi-pot test cable by proximal joint.
As preferably, described insulating sleeve is the organic glass cylinder.
As preferably, the height of described insulating sleeve is 0.5～0.75m, so both can satisfy testing requirements, can reduce again the stripping length at test cable two ends.
As preferably, described liquid insulating medium is the insulating oil of cleaning.
Concrete, described clamping device comprises lasso and some screws, and described lasso is fixed in the upper end of described insulating sleeve, and some screws are distributed on the sidewall of described lasso.
As preferably, described screw head is provided with boss, to guarantee the clamping to cable.
As preferably, described screw has three, compact conformation.
The present invention has been owing to adopted technique scheme, makes that test terminal is easy for installation, quick, material consumption is few.Simple to operate, easy for installation.Shorten cable socket stripping length, effectively shortened cable stripping and terminal set-up time, improved test efficiency.
Description of drawings
Fig. 1 is the structural representation of cable partial discharge test terminal of the present invention
Fig. 2 is the cut-open view of A-A among Fig. 1
Fig. 3 is the structural representation of grading shield
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Illustrated in figures 1 and 2 is cable partial discharge test terminal of the present invention, comprise grading shield 1, insulating sleeve 2, liquid insulating medium 3, the bottom of described grading shield 1 and Hi-pot test cable 4 are fixing, described grading shield 1 is connected with the lower end of described insulating sleeve 2, described liquid insulating medium 3 is contained in the space that described grading shield 1 and described insulating sleeve 2 surround, the upper end of described insulating sleeve 2 is provided with clamping device, in order to clamping test cable 6.As shown in Figure 3, the inside surface of described grading shield 1 and outside surface are all smoother smooth, the inside bottom surface of described grading shield 1 is provided with some fasteners, the body of described fastener 7 is the cylinder of diameter 3-4mm, the head of described fastener 7 is semisphere, avoids the generation of point discharge phenomenon in the time of good to guarantee to contact with cable core.The root of described fastener 7 is connected with proximal joint 8.Described insulating sleeve 2 is the organic glass cylinder.The height of described insulating sleeve 2 is 0.75m.Described liquid insulating medium 3 is the insulating oil of cleaning.
Described clamping device comprises lasso 51 and three screws 52, and described lasso 51 is fixed in the upper end of described insulating sleeve 2, and three screws 52 are distributed on the sidewall of described lasso 51.Described screw 52 heads are provided with boss 521.
Cable partial discharge test terminal size of the present invention is little, lightweight, and the every end of cable stripping size only need be shelled 0.75m, during test, pours into the insulating oil of cleaning in the lubricating cup that grading shield 1 and insulating sleeve 2 form, and an end of introducing high pressure claims near-end, and the other end then is far-end.
During local discharge test, as long as will fill it up with the lubricating cup (being comprised of grading shield 1 and insulating sleeve 2) of insulating oil is enclosed within on test cable 6 terminations, push-tight, make the fastener good contact of cable core and grading shield bottom surface, screwing screw 52 fixes cable core, this lubricating cup also just can be used as the use of suspension type terminal like this, also can be with the lubricating cup folder on the top of the shelf.
Screw screws in can not tension, in order to avoid weigh the cable semi-conductive layer wounded.Screw and cable semi-conductive layer or copper strips have good electrical contact, in addition line.Cable near-end copper strips should pass through support or line reliable ground, then proofreaies and correct, and just can begin to carry out wireline test.
As adopting three cover lubricating cups, triple cable just can carry out office simultaneously puts withstand voltage test.Take the 10kV cable as example, shorten to 0.75m from 1.5m such as cable stripping length in addition, 1.5m can also be saved in every dish cable two, will save over a year the testing cost more than 1,000,000 yuan.
Cable partial discharge test terminal of the present invention is not subjected to the restriction of cable dimension size, installs not only soon but also convenient, has improved test efficiency.
Claims (5)
1. cable partial discharge test terminal, it is characterized in that: comprise grading shield (1), insulating sleeve (2), liquid insulating medium (3), the bottom of described grading shield (1) and Hi-pot test cable (4) are fixing, described grading shield (1) is connected with the lower end of described insulating sleeve (2), described liquid insulating medium (3) is contained in the space that described grading shield (1) and described insulating sleeve (2) surround, the upper end of described insulating sleeve (2) is provided with clamping device, described clamping device comprises lasso (51) and some screws (52), described lasso (51) is fixed in the upper end of described insulating sleeve (2), some screws (52) are distributed on the sidewall of described lasso (51), described screw and cable semi-conductive layer electrical contact, screw (52) head is provided with boss (521), the inside bottom surface of described grading shield (1) is provided with some fasteners (7), the body of described fastener (7) is the cylinder of diameter 3-4mm, the head of described fastener (7) is semisphere, and the height of described insulating sleeve (2) is 0.5～0.75m.
2. described cable partial discharge test terminal according to claim 1, it is characterized in that: the root of described fastener (7) is connected with proximal joint (8).
3. described cable partial discharge test terminal according to claim 1, it is characterized in that: described insulating sleeve (2) is the organic glass cylinder.
4. described cable partial discharge test terminal according to claim 1, it is characterized in that: described liquid insulating medium (3) is the insulating oil of cleaning.
5. described cable partial discharge test terminal according to claim 1, it is characterized in that: described screw (52) has three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189449 CN102353879B (en) | 2011-07-06 | 2011-07-06 | Cable partial discharge test terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189449 CN102353879B (en) | 2011-07-06 | 2011-07-06 | Cable partial discharge test terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102353879A CN102353879A (en) | 2012-02-15 |
| CN102353879B true CN102353879B (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110189449 Active CN102353879B (en) | 2011-07-06 | 2011-07-06 | Cable partial discharge test terminal |
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| Country | Link |
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| CN (1) | CN102353879B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989737B (en) * | 2012-12-18 | 2014-12-10 | 重庆泰山电缆有限公司 | Cup for recovering oil on cable after terminal test of cable |
| CN103149394A (en) * | 2013-03-15 | 2013-06-12 | 无锡市曙光电缆有限公司 | Shortening type deionized water terminal for cable partial discharge test |
| CN103630786A (en) * | 2013-12-06 | 2014-03-12 | 江苏希波电气科技有限公司 | Dry terminal system of type test for ultrahigh-voltage cables of 500kV and below |
| CN103869228B (en) * | 2014-04-02 | 2016-05-11 | 上海华普电缆有限公司 | 35kV and following NOL ring-oil sealing type cross-inked polyethylene power cable shelf depreciation test terminal |
| CN103869229B (en) * | 2014-04-02 | 2017-02-15 | 上海华普电缆有限公司 | Terminal for partial discharge tests on crosslinked polyethylene power cable of 35 kV or lower |
| CN104931864B (en) * | 2015-06-12 | 2018-03-30 | 国网上海市电力公司 | A kind of pressure test insulating boot embedded suitable for cable position in storehouse |
| CN106841953B (en) * | 2017-03-29 | 2019-10-25 | 国家电网公司 | For measuring the cable accessory partial discharge test terminal of Embedded defect |
| CN107643435A (en) * | 2017-10-31 | 2018-01-30 | 现代重工(中国)电气有限公司 | Differential protection cable socket and the Current Mutual Inductance circuit protection device being made from it |
| CN107843749A (en) * | 2017-12-11 | 2018-03-27 | 冯志仑 | Insulation protection device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609102A (en) * | 2009-07-13 | 2009-12-23 | 上海三原电缆附件有限公司 | Mesolow crosslinked cable industrial frequency withstand voltage, local discharge test terminal structure |
| CN202133680U (en) * | 2011-07-06 | 2012-02-01 | 浙江晨光电缆股份有限公司 | Cable partial discharge test terminal |
-
2011
- 2011-07-06 CN CN 201110189449 patent/CN102353879B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609102A (en) * | 2009-07-13 | 2009-12-23 | 上海三原电缆附件有限公司 | Mesolow crosslinked cable industrial frequency withstand voltage, local discharge test terminal structure |
| CN202133680U (en) * | 2011-07-06 | 2012-02-01 | 浙江晨光电缆股份有限公司 | Cable partial discharge test terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102353879A (en) | 2012-02-15 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Cable partial discharge test terminal Effective date of registration: 20201203 Granted publication date: 20131016 Pledgee: Dushangang sub branch of Zhejiang Pinghu Rural Commercial Bank Co., Ltd Pledgor: ZHEJIANG CHENGUANG CABLE Co.,Ltd. Registration number: Y2020330001100 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210617 Granted publication date: 20131016 Pledgee: Dushangang sub branch of Zhejiang Pinghu Rural Commercial Bank Co., Ltd Pledgor: ZHEJIANG CHENGUANG CABLE Co.,Ltd. Registration number: Y2020330001100 |