CN104020325A - High-voltage test shielding cover for 10kV ring main unit - Google Patents
High-voltage test shielding cover for 10kV ring main unit Download PDFInfo
- Publication number
- CN104020325A CN104020325A CN201410270687.0A CN201410270687A CN104020325A CN 104020325 A CN104020325 A CN 104020325A CN 201410270687 A CN201410270687 A CN 201410270687A CN 104020325 A CN104020325 A CN 104020325A
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- CN
- China
- Prior art keywords
- cover body
- main unit
- ring main
- sleeve
- sleeve pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a high-voltage test shielding cover for a 10kV ring main unit. The high-voltage test shielding cover is particularly suitable for commissioning tests of the 10kV ring main unit. A structure body of the high-voltage test shielding cover comprises a cover body and a sleeve. The cover body and the sleeve are coaxially arranged. The cover body is of a circular truncated cone shape. The sleeve is an equal-diameter round pipe. The size of the cover body of the circular truncated cone shape is matched with that of the incoming and outgoing line sleeve. The size of the sleeve is matched with that of a cable. The cover body and the end of the sleeve are provided with elastic fastening pieces. The high-voltage test shielding cover fundamentally solves the problem that the ring main unit can not apply enough alternating-current voltage, ensures that the tests are carried out smoothly and accurately and the high-voltage tests inspect integral insulation of the ring main unit accurately, and provides a powerful evidence for whether the ring main unit can be put into operation.
Description
Technical field
The present invention relates to a kind of insulating protective cover, relate in particular to a kind of 10kV ring main unit high-potting mask, be specially adapted to the commissioning test of 10kV ring main unit.
Background technology
At present, needs due to urban construction, electric network reconstruction, 10kV transmission system all adopts power cable as transmission line of electricity, and in order to improve the reliability of power supply, transmission of electricity main line adopts the mode of looped network to power, the connection that is cable generally adopts ring main unit, then by ring main unit to other customer power supply, so ring main unit has become the important component part of 10kV transmission line of electricity.But it is also the weak link of transmission line of electricity operation simultaneously, because the design feature of ring main unit is that compactness, volume are little, and the equipment such as sulfur hexafluoride breaker, disconnector, cartridge fuse, bus are equipped with in inside, once these equipment occur that owing to manufacturing reason the phenomenons such as insulation distance is inadequate, leak gas or make moist will produce the accidents such as electric discharge or three-phase shortcircuit, even blast.
According to GB50150-2006 < < Erection works of electrical installations Standard for handover test of electric equipment > > 10kV ring main unit, commissioning test should apply power frequency ac voltage 33kV, but due to ring main unit into and out of thread casing with around casing is very near, cannot apply 33kV alternating voltage at all, generally in 25kV left and right, start electric discharge, that is to say the integral insulation of the investigation ring main unit that high-potting cannot be real under existing condition.High-potting personnel are general at present adopts two kinds of methods to test ring main unit, a kind of method is by cable testing standard, to apply DC voltage 37kV together with cable, this method can not effectively be checked the dielectric strength of ring main unit, and is unfavorable for sulfur hexafluoride gas in sulfur hexafluoride breaker; Another kind method be use managing security tools and instruments as some insulating bodies pads such as insulating glove, boots, safety helmet ring main unit on thread casing, often there is at the trial electric discharge or damage managing security tools and instruments in this method.
Summary of the invention
The present invention is directed to the problem that above-mentioned prior art exists, a kind of 10kV ring main unit high-potting mask is provided, solved the problem that prior art high-potting cannot be investigated the integral insulation of ring main unit.
Technical scheme of the present invention is as follows:
Body comprises cover body and sleeve pipe, and cover body and sleeve pipe coaxially arrange, and cover body is truncated cone-shaped, and sleeve pipe is isometrical pipe, and size and the inlet-outlet sleeve of truncated cone-shaped cover body match, and casing size CS and cable match; The end of cover body and sleeve pipe is provided with elastic fastener.
The inwall of described cover body end is provided with one week bulge loop.
Described cover body is consistent with the length ratio of sleeve pipe.
The outer diameter of described sleeve pipe is less than the diameter of section of truncated cone-shaped cover body.
The present invention has the following advantages:
1, use simple, easy to operate, simple in structure, be easy to produce, volume is little, lightweight, pliability is good, easily carries, safety coefficient is high.
2, use extensively, frequent, save time, because the use of ring main unit is more and more, the present invention will be widely used.
3, fundamentally solved the problem that ring main unit can not apply enough alternating voltages, warranty test smoothly, carry out accurately, guarantees that high-potting investigates the integral insulation of ring main unit accurately, for whether ring main unit can put into operation, provides strong evidence.
4, the end of cover body and sleeve pipe is provided with elastic fastener, can firmly cover body and sleeve pipe be fixed on inlet-outlet sleeve and cable, and be applicable to the existing sleeve pipe of turnover and the cable of different size.
5, the inwall of cover body end is provided with bulge loop, has strengthened cover body and has been connected tightness with inlet-outlet sleeve.
Accompanying drawing explanation
Fig. 1 is mask and inlet-outlet sleeve released state schematic diagram.
Fig. 2 is that mask and inlet-outlet sleeve are used view.
Fig. 3 is the sectional structure schematic diagram of mask of the present invention.
Fig. 4 is the plan structure schematic diagram of Fig. 3.
In figure, 1, ring main unit, 2, inlet-outlet sleeve, 3, mask, 4, cable, 5, testing transformer; 301, cover body, 302, sleeve pipe, 303, securing member, 304, bulge loop.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe the present invention in detail.
embodiment
As shown in Figure 3-4, body is that rubber insulation material completes through a crimping of die material.Body comprises cover body 301 and sleeve pipe 302, the length ratio of cover body and sleeve pipe is consistent, respectively account for 1/2nd of body, cover body and sleeve pipe coaxially arrange, cover body is truncated cone-shaped, and sleeve pipe is isometrical pipe, and size and the inlet-outlet sleeve of truncated cone-shaped cover body match, casing size CS and cable match, and the outer diameter of sleeve pipe is less than the diameter of section of truncated cone-shaped cover body; The end of cover body and sleeve pipe is provided with rubber fastener 303; The inwall of cover body end is provided with one week bulge loop 304.
As Fig. 1-2, during use, first high voltage insulation cable 4 is connected with transformer 5, and then cover body 301, sleeve pipe 302 are enclosed within on high-potting insulated cable 4, then cable 4 use binding clips, be connected to wiring place (executing alive place) of inlet-outlet sleeve 2, finally with cover body, whole sleeve pipe and wiring place cover is upper, make wiring place not to casing electric discharge around.
In testing ground due to cable and lightning arrester and bus more closely cannot depart from and during normal test, also can use mask, the normal test of assurance cable and lightning arrester temporarily.
The above is specific embodiments of the invention and the know-why used, and any equivalent transformation based on technical solution of the present invention basis, within all belonging to protection scope of the present invention.
Claims (4)
1. 10kV ring main unit high-potting mask, is characterized in that body comprises cover body and sleeve pipe, and cover body and sleeve pipe coaxially arrange, cover body is truncated cone-shaped, sleeve pipe is isometrical pipe, and size and the inlet-outlet sleeve of truncated cone-shaped cover body match, and casing size CS and cable match; The end of cover body and sleeve pipe is provided with elastic fastener.
2. 10kV ring main unit high-potting mask according to claim 1, is characterized in that the inwall of described cover body end is provided with one week bulge loop.
3. 10kV ring main unit high-potting mask according to claim 1, is characterized in that the length ratio of described cover body and sleeve pipe is consistent.
4. 10kV ring main unit high-potting mask according to claim 1, is characterized in that the outer diameter of described sleeve pipe is less than the diameter of section of truncated cone-shaped cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270687.0A CN104020325A (en) | 2014-06-18 | 2014-06-18 | High-voltage test shielding cover for 10kV ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270687.0A CN104020325A (en) | 2014-06-18 | 2014-06-18 | High-voltage test shielding cover for 10kV ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104020325A true CN104020325A (en) | 2014-09-03 |
Family
ID=51437190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410270687.0A Pending CN104020325A (en) | 2014-06-18 | 2014-06-18 | High-voltage test shielding cover for 10kV ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104020325A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259485A (en) * | 2015-11-05 | 2016-01-20 | 国家电网公司 | Insulating cover for high-voltage test of lightning arrester |
| CN106771391A (en) * | 2016-12-09 | 2017-05-31 | 国网北京市电力公司 | Porcelain vase mask electrode |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2252682A (en) * | 1991-02-02 | 1992-08-12 | Hawker Siddeley Switchgear Ltd | High voltage transformer connector bushing |
| CN201274380Y (en) * | 2008-09-16 | 2009-07-15 | 广东番开电气设备制造有限公司 | Bus bar connecting casing for switch cabinet |
| CN101923140A (en) * | 2010-09-07 | 2010-12-22 | 北京必成达电缆附件有限公司 | Withstand test device of sleeve of looped network cabinet equipment |
| CN202093061U (en) * | 2011-06-30 | 2011-12-28 | 惠州比亚迪电子有限公司 | Plug fixing device |
| CN202182907U (en) * | 2011-08-16 | 2012-04-04 | 山东电力集团公司潍坊供电公司 | Ring network cabinet T body test apparatus |
| CN202601886U (en) * | 2012-01-20 | 2012-12-12 | 雅达电子国际有限公司 | Connector |
| CN202770862U (en) * | 2012-07-24 | 2013-03-06 | 上海天灵开关厂有限公司 | Rapid mounting and dismounting type high-voltage adapter for outer cone cable sleeve |
| CN204008708U (en) * | 2014-06-18 | 2014-12-10 | 国家电网公司 | 10kV ring main unit high-potting mask |
-
2014
- 2014-06-18 CN CN201410270687.0A patent/CN104020325A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2252682A (en) * | 1991-02-02 | 1992-08-12 | Hawker Siddeley Switchgear Ltd | High voltage transformer connector bushing |
| CN201274380Y (en) * | 2008-09-16 | 2009-07-15 | 广东番开电气设备制造有限公司 | Bus bar connecting casing for switch cabinet |
| CN101923140A (en) * | 2010-09-07 | 2010-12-22 | 北京必成达电缆附件有限公司 | Withstand test device of sleeve of looped network cabinet equipment |
| CN202093061U (en) * | 2011-06-30 | 2011-12-28 | 惠州比亚迪电子有限公司 | Plug fixing device |
| CN202182907U (en) * | 2011-08-16 | 2012-04-04 | 山东电力集团公司潍坊供电公司 | Ring network cabinet T body test apparatus |
| CN202601886U (en) * | 2012-01-20 | 2012-12-12 | 雅达电子国际有限公司 | Connector |
| CN202770862U (en) * | 2012-07-24 | 2013-03-06 | 上海天灵开关厂有限公司 | Rapid mounting and dismounting type high-voltage adapter for outer cone cable sleeve |
| CN204008708U (en) * | 2014-06-18 | 2014-12-10 | 国家电网公司 | 10kV ring main unit high-potting mask |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259485A (en) * | 2015-11-05 | 2016-01-20 | 国家电网公司 | Insulating cover for high-voltage test of lightning arrester |
| CN106771391A (en) * | 2016-12-09 | 2017-05-31 | 国网北京市电力公司 | Porcelain vase mask electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140903 |
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| RJ01 | Rejection of invention patent application after publication |