CN105301295A - Indoor cable inlet transformer winding short-circuiting device - Google Patents
Indoor cable inlet transformer winding short-circuiting device Download PDFInfo
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- CN105301295A CN105301295A CN201510715559.7A CN201510715559A CN105301295A CN 105301295 A CN105301295 A CN 105301295A CN 201510715559 A CN201510715559 A CN 201510715559A CN 105301295 A CN105301295 A CN 105301295A
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- transformer winding
- cable inlet
- insulating bar
- mobile jib
- winding short
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
An indoor cable inlet transformer winding short-circuiting device comprises an insulation board, an insulation lever, a lead with low insulation strength, a short-circuit wire interface, and a hook. By adopting the indoor cable inlet transformer winding short-circuiting device provided by the invention, the workload of test personnel can be reduced, the wiring time can be reduced, the work efficiency can be improved, tested equipment can be put into operation in time, pollution caused by test wiring to the inside of a fuel tank and transformer accident caused by foreign matters left inside the fuel tank are avoided, and most importantly, fall-off of a high-voltage lead in the test process can be avoided, the safety of test personnel is ensured, and damage to the test equipment is avoided.
Description
Technical field
The invention belongs to electric system proving installation technical field, particularly relate to a kind of house cable inlet wire Transformer Winding short-circuit device.
Background technology
Along with increasing gradually of indoor substation quantity, the work of indoor transformer test also gets more and more thereupon.Current indoor transformer generally adopts the mode of long cable section of ingoing line, and the joint of cable and Transformer Winding is arranged in the special independent oil tank of transformer, and tank envelope and transformer case one also ground connection, the joint of winding is generally positioned at the depths of independent oil tank.During process of the test, sometimes need pressurization or ground connection after the winding short circuit of each side, particularly when carrying out electric capacity and the medium loss test of winding and sleeve pipe, the high pressure applying 10kV is needed after winding short circuit, because the general dielectric strength of shorting stub is lower, this just requires that shorting stub has certain insulation distance to independent oil tank shell, joint due to Transformer Winding is positioned at the depths of independent oil tank, and the fuel tank cap place of independent oil tank lacks insulating supporting point, therefore on-the-spotly to sling at independent oil tank upper port place lead-in wire through conventional insulating tape, make the safe distance that itself and tank envelope keep certain, and then the lead-in wire of three-phase windings carried out short circuit on outside insulating ladder and applies high pressure, do like this and will cause following problem:
One, because indoor transformer general high voltage and medium voltage side are all long cable section of ingoing line, therefore do height, middle pressure winding and height, middle sleeve electric capacity and medium loss test time all need to carry out above messenger wire work, greatly will increase the workload of testing crew like this, extend test period, be therefore unfavorable for putting into operation in time of equipment;
Two, when connection transformer winding overhang goes between, joint due to winding is positioned at the depths of independent oil tank, testing crew needs to bend to creep into fuel tank and carries out wiring, such one side easily causes the pollution of independent oil tank inside, and the instrument easily causing testing crew to be carried with on the other hand or other article fall into fuel tank and the pernicious power outage causing transformer to have a power failure after transformer power transmission;
Three, with insulating tape, interim lifting is carried out to the lead-in wire of Transformer Winding fixing reliable not, easily cause lead-in wire to come off in process of the test, thus the personnel that cause injure the damage with equipment.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of house cable inlet wire Transformer Winding short-circuit device,
In order to achieve the above object, house cable inlet wire Transformer Winding short-circuit device provided by the invention comprises insulcrete, insulating bar, the lead-in wire of low insulation intensity, shorting stub interface and hook; Wherein insulcrete is vertically disposed rectangular slab, long limit below one end is positioned at upwards has been recessed to form a draw-in groove, inwardly be formed with a groove in the middle part of the minor face of the other end, the long limit above being simultaneously positioned at be recessed to form an insulating bar downwards groove is set; Insulating bar is made up of with the connecting link being connected to mobile jib one end the mobile jib of hollow structure, and the middle part of mobile jib is arranged on insulating bar and arranges in groove; Shorting stub interface is arranged on the other port of mobile jib; The lead-in wire of low insulation intensity runs through the inside being arranged on mobile jib, and one end is fixed on connecting link, and the other end connects with shorting stub interface; One end of hook is fixed on the outer end of connecting link.
The width that described insulating bar arranges groove equals the diameter of mobile jib, thus can ensure the firm of insulating bar.
Described hook is metal hanger.
This device of house cable inlet wire Transformer Winding short-circuit device provided by the invention can reduce the workload of testing crew, save setting up time, increase work efficiency, ensure that tested device puts into operation in time, can avoid causing the pollution of fuel tank internal due to test connection and causing Accident of Transformer at fuel tank internal remaining foreign matter simultaneously, what the most important thing is to avoid process of the test mesohigh to go between comes off, thus the personal safety of warranty test personnel and avoid destructive test equipment.
Accompanying drawing explanation
Fig. 1 is house cable inlet wire Transformer Winding short-circuit device STRUCTURE DECOMPOSITION schematic diagram provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, house cable inlet wire Transformer Winding short-circuit device provided by the invention is described in detail.
As shown in Figure 1, house cable inlet wire Transformer Winding short-circuit device provided by the invention comprises insulcrete 1, insulating bar 2, the lead-in wire 3 of low insulation intensity, shorting stub interface 4 and hook 5; Wherein insulcrete 1 is vertically disposed rectangular slab, long limit below one end is positioned at upwards has been recessed to form a draw-in groove 6, inwardly be formed with a groove 7 in the middle part of the minor face of the other end, the long limit above being simultaneously positioned at be recessed to form an insulating bar downwards groove 8 is set; Insulating bar 2 is made up of with the connecting link 10 being connected to mobile jib 9 one end the mobile jib 9 of hollow structure, and the middle part of mobile jib 9 is arranged on insulating bar and arranges in groove 8; Shorting stub interface 4 is arranged on the other port of mobile jib 9; The lead-in wire 3 of low insulation intensity runs through the inside being arranged on mobile jib 9, and one end is fixed on connecting link 10, and the other end connects with shorting stub interface 4; One end of hook 5 is fixed on the outer end of connecting link 10.
The width that described insulating bar arranges groove 8 equals the diameter of mobile jib 9, thus can ensure the firm of insulating bar 2.
Described hook 5 is metal hanger.
Now house cable inlet wire Transformer Winding short-circuit device using method provided by the invention is described below: when needing to test the performance of indoor transformer, first by testing crew, the groove 7 on insulcrete 1 is stuck in independent oil tank to cover, then draw-in groove 6 is stuck in independent oil tank upper port place, and make the one end of insulating bar 2 being installed shorting stub interface 4 give prominence to outside independent oil tank, hook 5 is utilized high-voltage connection to be articulated in the joint of Transformer Winding afterwards, such testing crew just can creep into independent oil tank, afterwards three-phase windings shorting stub is connected on shorting stub interface 4, at this moment just testing of respective item can be carried out.Because independent oil tank upper port one segment distance is given prominence in the one end of insulating bar 2 being installed shorting stub interface 4, lead-in wire when therefore can ensure three-phase windings short circuit and fuel tank tank envelope have enough safe distances.
Claims (3)
1. a house cable inlet wire Transformer Winding short-circuit device, is characterized in that: described house cable inlet wire Transformer Winding short-circuit device comprises insulcrete (1), insulating bar (2), the lead-in wire (3) of low insulation intensity, shorting stub interface (4) and hook (5); Wherein insulcrete (1) is vertically disposed rectangular slab, long limit below one end is positioned at upwards has been recessed to form a draw-in groove (6), inwardly be formed with a groove (7) in the middle part of the minor face of the other end, the long limit above being simultaneously positioned at be recessed to form an insulating bar downwards groove (8) is set; Insulating bar (2) is made up of the mobile jib (9) of hollow structure and the connecting link (10) that is connected to mobile jib (9) one end, and the middle part of mobile jib (9) is arranged on insulating bar and arranges in groove (8); Shorting stub interface (4) is arranged on the other port of mobile jib (9); The lead-in wire (3) of low insulation intensity runs through the inside being arranged on mobile jib (9), and one end is fixed on connecting link (10), and the other end connects with shorting stub interface (4); One end of hook (5) is fixed on the outer end of connecting link (10).
2. house cable inlet wire Transformer Winding short-circuit device according to claim 1, it is characterized in that: the width that described insulating bar arranges groove (8) equals the diameter of mobile jib (9), thus can ensure the firm of insulating bar (2).
3. house cable inlet wire Transformer Winding short-circuit device according to claim 1, is characterized in that: described hook (5) is metal hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715559.7A CN105301295B (en) | 2015-10-28 | 2015-10-28 | House cable inlet wire Transformer Winding short-circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715559.7A CN105301295B (en) | 2015-10-28 | 2015-10-28 | House cable inlet wire Transformer Winding short-circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105301295A true CN105301295A (en) | 2016-02-03 |
| CN105301295B CN105301295B (en) | 2018-02-06 |
Family
ID=55198797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510715559.7A Active CN105301295B (en) | 2015-10-28 | 2015-10-28 | House cable inlet wire Transformer Winding short-circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105301295B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168642A (en) * | 2016-07-27 | 2016-11-30 | 国网山东省电力公司青岛供电公司 | Shorting stub compensator for high-tension electricity equipment electrical test |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606958Y (en) * | 2003-04-27 | 2004-03-17 | 九川电器有限公司 | Novel transformer connection terminal |
| CN2864943Y (en) * | 2005-12-13 | 2007-01-31 | 中电电气集团有限公司 | Transformer lead clamp |
| JP2008130280A (en) * | 2006-11-17 | 2008-06-05 | Tokyo Electric Power Co Inc:The | Short-circuit tool and test plug |
| CN201281722Y (en) * | 2008-09-26 | 2009-07-29 | 佳木斯电业局 | Test wire connection hook for DC resistance of large-sized transformer |
| JP2011185736A (en) * | 2010-03-09 | 2011-09-22 | Chugoku Electric Power Co Inc:The | Shorting jig |
| CN204008714U (en) * | 2014-06-30 | 2014-12-10 | 国家电网公司 | Deformation test of transformer winding Special wiring device |
| CN204613251U (en) * | 2015-03-13 | 2015-09-02 | 国家电网公司 | For the anti induction voltage connection box of line parameter circuit value test |
| CN204695940U (en) * | 2014-12-15 | 2015-10-07 | 南通迪皮茜电子有限公司 | Transformer terminal structure body |
-
2015
- 2015-10-28 CN CN201510715559.7A patent/CN105301295B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606958Y (en) * | 2003-04-27 | 2004-03-17 | 九川电器有限公司 | Novel transformer connection terminal |
| CN2864943Y (en) * | 2005-12-13 | 2007-01-31 | 中电电气集团有限公司 | Transformer lead clamp |
| JP2008130280A (en) * | 2006-11-17 | 2008-06-05 | Tokyo Electric Power Co Inc:The | Short-circuit tool and test plug |
| CN201281722Y (en) * | 2008-09-26 | 2009-07-29 | 佳木斯电业局 | Test wire connection hook for DC resistance of large-sized transformer |
| JP2011185736A (en) * | 2010-03-09 | 2011-09-22 | Chugoku Electric Power Co Inc:The | Shorting jig |
| CN204008714U (en) * | 2014-06-30 | 2014-12-10 | 国家电网公司 | Deformation test of transformer winding Special wiring device |
| CN204695940U (en) * | 2014-12-15 | 2015-10-07 | 南通迪皮茜电子有限公司 | Transformer terminal structure body |
| CN204613251U (en) * | 2015-03-13 | 2015-09-02 | 国家电网公司 | For the anti induction voltage connection box of line parameter circuit value test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168642A (en) * | 2016-07-27 | 2016-11-30 | 国网山东省电力公司青岛供电公司 | Shorting stub compensator for high-tension electricity equipment electrical test |
| CN106168642B (en) * | 2016-07-27 | 2023-03-14 | 国网山东省电力公司青岛供电公司 | Short-circuit wire expansion piece for electrical test of high-voltage power equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105301295B (en) | 2018-02-06 |
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