CN201307691Y - Switching device and current transformer testing line - Google Patents
Switching device and current transformer testing line Download PDFInfo
- Publication number
- CN201307691Y CN201307691Y CNU2008201227578U CN200820122757U CN201307691Y CN 201307691 Y CN201307691 Y CN 201307691Y CN U2008201227578 U CNU2008201227578 U CN U2008201227578U CN 200820122757 U CN200820122757 U CN 200820122757U CN 201307691 Y CN201307691 Y CN 201307691Y
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- current transformer
- socket
- wire
- core body
- jack
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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.)
- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title abstract description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 238000012549 training Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a switching device, which comprises a switching head and a socket. The switching head is used for transferring high current through surface contact; the socket is provided with a jack and a spiral locking groove which is arranged at the terminal of the jack; the switching head is provided with a core body and a block; wherein, the core body is inserted in the jack; and the block is arranged on the core body and locked with the spiral locking groove. The utility model also provides a current transformer testing line. When the testing line and the switching head are used, the testing personnel can conveniently perform the wiring operation: firstly, the socket is connected with the primary terminal of a tested alternating current transformer; secondly, the testing line with the switching device is connected with the socket. One adult can complete the operation; no spanner or other tools are required; the working personnel can connect the current testing line skillfully after receiving simple training; and the time for connecting the current testing line can not exceed three minutes.
Description
Technical field
The utility model relates to the electric equipment field, specifically, relates to a kind of switching device and the p-wire that is used for current transformer.
Background technology
Current transformer can become big current conversion once the little electric current of secondary, so the p-wire of primary side must will guarantee its safe carrying capacity in the test of current transformer.The use of great current mutual inductor is very general, and particularly in transformer station, the current transformer major part of use is big electric current (primary current is more than 1000A).The mistake of instrument transformer can have influence on ten hundreds of electric weight mistakes, causes great metering accident, so the on-the-spot test of instrument transformer is extremely important.
Existing high-current test line all be the method that adopts die casting or welding with large-section lead be connected the disposable connection of inserted sheet, lead be connected the inserted sheet permanent fixation.In the current transformer test process, the connection inserted sheet of p-wire is connected by bolt with a terminal (copper bar) on the current transformer.In realizing the utility model process, the inventor finds that connection procedure need use spanner, elapsed time is long, labour intensity is big, and movement range is also big, overexerts easily and mistake is bumped miscellaneous equipment.
The utility model content
The test wire that the purpose of this utility model is a kind of switching device is provided and is used for current transformer is so that the test job of current transformer is efficient, safe and convenient.
For reaching this purpose, on the one hand, switching device of the present utility model comprises by face and contacts adapter and the socket that conducts big electric current that wherein, socket has jack and is positioned at the spiral locking slot of jack end; The piece of locking mutually with the spiral locking slot on adapter has the core body that inserts jack and is positioned at core body.
Preferably, above-mentioned socket comprises pedestal and insulation crust, and pedestal has the conduction end face, and the slot bearing of trend is perpendicular to the conduction end face; Adapter comprises plug and insulating sleeve, and plug has the conduction anchor ring that is positioned at the core body root, above-mentioned contact for the conduction end face with conduct electricity the contacting of anchor ring.
Preferably, above-mentioned socket is used to be mounted to the primary side terminal of current transformer, and adapter is used for fixing the end to p-wire, so that p-wire is mounted on the current transformer.
Preferably, the pedestal of above-mentioned socket is provided with screw and the primary side terminal by spiro connecting piece and current transformer and is spirally connected and is fixed together.
Preferably, above-mentioned insulation crust forms the protection chamber in face of the conducting end of pedestal.
Preferably, above-mentioned jack is by the circular hole that inserts for core body and supply the slotted eye of the piece insertion on the core body to constitute, and slotted eye forms the spiral locking slot endways.
On the other hand, the p-wire that is used for current transformer of the present utility model, one end of p-wire has adapter, with be mounted to current transformer on socket contact by face and conduct big electric current, socket has jack and is positioned at the spiral locking slot of jack end, wherein adapter comprises plug and insulating sleeve, wherein the core body of plug with the jack that inserts socket be positioned at core body on the piece of locking mutually with the spiral locking slot.
Preferably, the root of the core body of the plug of above-mentioned adapter is the conduction anchor ring.
Preferably, p-wire is the p-wire of primary side of current transformer or the p-wire of secondary side.
Utilize p-wire of the present utility model and switching device, the tester just can easily carry out the wiring operation, and the wiring operation was divided into for two steps, and the first step is that socket is connected on the terminal of tested D.C mutual-inductor.Second step was that the test wire that will have adapter is connected on the socket, and this step does not need to employ instruments such as spanner as long as an adult can operate, as long as the rotation adapter can connect or remove test wire.And the place of holding of adapter has insulating sleeve, has not only guaranteed insulation safety but also non-slip can guarantee to operate the time.
Be noted that the description and the following detailed description all are exemplary, being intended to provides further instruction to desired the utility model.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to figure, other purpose, feature and effect of the present utility model is described in further detail.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 shows the perspective schematic view according to switching device of the present utility model;
Fig. 2 shows the schematic half sectional view of plug of the adapter of switching device shown in Figure 1;
Fig. 3 shows the schematic right-side view of plug shown in Figure 2;
Fig. 4 shows the schematic cross sectional views of pedestal of the socket of switching device shown in Figure 1;
Fig. 5 shows the schematic left view of pedestal shown in Figure 4; And
Fig. 6 shows the p-wire that is used for the current transformer primary side according to of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is described.
Fig. 1 shows the perspective schematic view according to switching device of the present utility model.As shown in the figure, switching device comprises adapter 20 and socket 10.Wherein, the terminal 30 of socket 10 on the current transformer (not shown) is screwed onto, and this socket 10 comprises pedestal 11 and be positioned at the insulation crust 13 of pedestal 11 peripheries that this insulation crust plays a protective role to pedestal; Adapter 20 comprises plug 21 and insulating sleeve 23.
Below in conjunction with Fig. 2 and Fig. 3 the plug 21 of adapter 20 is described.
Fig. 2 shows the schematic half sectional view of plug of the adapter of switching device shown in Figure 1.Fig. 3 shows the schematic right-side view of plug shown in Figure 2.As shown in Figures 2 and 3, one end of this plug forms the cavity 217 that connects p-wire, the other end forms core body 211, the top of this core body or near sidewall on form piece 215, at core body 211 roots are conduction anchor rings 213, and promptly plug contacts with other conductive surface by this conduction anchor ring and conducts electricity.Have jack 113 and the spiral locking slot 113c (as shown in Figure 4) that is positioned at the jack end; The piece of locking mutually with described spiral locking slot on described adapter has the core body that inserts described jack and is positioned at described core body.
Next in conjunction with Fig. 4 and Fig. 5 the pedestal 11 of socket 10 is described.
Fig. 4 shows the schematic cross sectional views of pedestal of the socket of switching device shown in Figure 1; Fig. 5 shows the schematic left view of pedestal shown in Figure 4.As shown in Figure 4 and Figure 5, an end of pedestal 11 forms screw 118 and external screw thread 119, and this screw 118 is screwed onto by the terminal 30 of spiro connecting piece (not shown) such as bolt and nut with current transformer, and external screw thread 119 can be used for the insulation crust 13 that is spirally connected.The other end of pedestal 11 is conduction end face 111, and this conduction end face 111 is used for contacting to conduct big electric current with 213 of the conduction anchor rings of above-mentioned plug.Form jack 113 on conduction end face 111, this jack 113 is made up of circular hole 113a and slotted eye 113b, at the end formation spiral locking slot 113c of slotted eye 113b.
Below the annexation between adapter and the socket is described.
The projection of shape of the core body 211 of the cross sectional shape of the jack 113 in the pedestal 11 of socket 10 and the plug 21 of adapter 20 is coincide, like this, core body 211 promptly can insert in the jack 113, and wherein, piece 215 is arranged in the slotted eye 113b of jack 113, when core body 211 insertions put in place, rotate core body 211, then piece 215 forwards among the spiral locking slot 113c, at this moment, be similar to the motion of screw rod in screw, thereby socket 10 and adapter 20 are locked.At this moment, the conduction end face 111 of pedestal 11 also is close to the conduction anchor ring of plug 21 and is contacted, and has realized that the face contact is to conduct the purpose of big electric current.
Below in conjunction with Fig. 6 the p-wire that is used for current transformer of the present utility model is described.
Fig. 6 shows the p-wire that is used for the current transformer primary side according to of the present utility model.As shown in Figure 6, an end of p-wire 40 connects adapter 20, and the other end is connected to the tester (not shown).Like this, the tester just can easily carry out the wiring operation, and the wiring operation was divided into for two steps, the first step is that socket is connected on the terminal of tested D.C mutual-inductor, and this step is very easy, quick, and very light and handy, inner core has used copper product, guarantees safe carrying capacity.Second step was that the test wire that will have adapter is connected on the socket, and this step does not need to employ instruments such as spanner as long as an adult can operate, as long as the rotation adapter can connect or remove test wire.And the place of holding of adapter has insulating sleeve 23, has not only guaranteed insulation safety but also non-slip can guarantee to operate the time.
The utility model people is called multiple spot screw-tightened cassette locking mode with the connected mode between above-mentioned adapter and the socket.Find by test, one, connected mode of the present utility model can guarantee that the instrument transformer test data is accurate, promptly caused measure error such as test wire is not more than 1/10 of tested current transformer error limit value; Two, test wire is carried out the practical operation test, satisfied fail safe and the agility used, do not influenced the normal operation of contiguous charging equipment; Three, temperature rise test requirement proof the utility model of meeting relevant regulations among the GB1208-1997 satisfies the rules requirement.
Use p-wire of the present utility model, the staff promptly can skillfully connect the current testing line after through simple training, and the time can be above 3 minutes.Socket required during connection is light and handy, can save at work that muscle power and movement range are very little just can finish wiring work, can be owing to the mistake that overexerts be bumped miscellaneous equipment.This achievement can be improved the labour intensity of instrument transformer experiment work greatly after applying, alleviate front man's burden, enhances productivity; Make the staff that more energy is placed on aspects such as trouble free service simultaneously, help the safe operation of transformer station.Fabulous social benefit has been played in Utilities Electric Co..
One of ordinary skill in the art will readily recognize that switching device of the present utility model can be used for other occasion that big ampere wires is connected with equipment, and be not limited to the application on the p-wire of current transformer.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. a switching device is characterized in that, comprise by face contacting adapter and the socket that conducts big electric current, wherein,
Described socket has jack and is positioned at the spiral locking slot of jack end;
The piece of locking mutually with described spiral locking slot on described adapter has the core body that inserts described jack and is positioned at described core body.
2. switching device according to claim 1 is characterized in that,
Described socket comprises pedestal and insulation crust, and described pedestal has the conduction end face, and the bearing of trend of described slot is perpendicular to described conduction end face;
Described adapter comprises plug and insulating sleeve, and described plug has the conduction anchor ring that is positioned at the core body root,
Wherein, described contact is described conduction end face and the contacting of described conduction anchor ring.
3. switching device according to claim 1 is characterized in that,
Described socket is used to be mounted to the primary side terminal of current transformer, and described adapter is used for fixing the end to p-wire, so that described p-wire is mounted on the described current transformer.
4. switching device according to claim 3 is characterized in that,
The pedestal of described socket is provided with screw and the primary side terminal by spiro connecting piece and described current transformer and is spirally connected and is fixed together.
5. switching device according to claim 1 is characterized in that,
Described insulation crust forms the protection chamber in face of the conducting end of described pedestal.
6. according to each described switching device in the claim 1 to 5, it is characterized in that,
Described jack is by the circular hole that inserts for described core body and supply the slotted eye of the piece insertion on the described core body to constitute, and described slotted eye forms described spiral locking slot endways.
7. p-wire that is used for current transformer, it is characterized in that an end of described p-wire has adapter, be mounted to described current transformer on socket contact by face and conduct big electric current, described socket has jack and is positioned at the spiral locking slot of jack end, wherein
Described adapter comprises plug and insulating sleeve, the core body that wherein said plug has a described jack that inserts described socket be positioned at described core body on the piece of locking mutually with described spiral locking slot.
8. the p-wire that is used for current transformer according to claim 7 is characterized in that, the root of the core body of the plug of described adapter is the conduction anchor ring.
9. according to claim 7 or the 8 described p-wires that are used for current transformer, it is characterized in that described p-wire is the p-wire of the primary side of described current transformer.
10. according to claim 7 or the 8 described p-wires that are used for current transformer, it is characterized in that described p-wire is the p-wire of the secondary side of described current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201227578U CN201307691Y (en) | 2008-09-26 | 2008-09-26 | Switching device and current transformer testing line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201227578U CN201307691Y (en) | 2008-09-26 | 2008-09-26 | Switching device and current transformer testing line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307691Y true CN201307691Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201227578U Expired - Lifetime CN201307691Y (en) | 2008-09-26 | 2008-09-26 | Switching device and current transformer testing line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307691Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074809A (en) * | 2009-11-19 | 2011-05-25 | 江苏省电力公司南京供电公司 | Multi-purpose grounding device |
| CN103487614A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Secondary testing device of current transformer and assembly thereof |
| CN104977434A (en) * | 2015-06-10 | 2015-10-14 | 国网辽宁省电力有限公司检修分公司 | Buckle type wiring plug and use method |
| CN108232509A (en) * | 2017-12-15 | 2018-06-29 | 国网北京市电力公司 | Interface extended device |
| CN108899176A (en) * | 2018-04-02 | 2018-11-27 | 国网上海市电力公司 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
-
2008
- 2008-09-26 CN CNU2008201227578U patent/CN201307691Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074809A (en) * | 2009-11-19 | 2011-05-25 | 江苏省电力公司南京供电公司 | Multi-purpose grounding device |
| CN102074809B (en) * | 2009-11-19 | 2013-11-13 | 江苏省电力公司南京供电公司 | Multi-purpose grounding device |
| CN103487614A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Secondary testing device of current transformer and assembly thereof |
| CN103487614B (en) * | 2013-10-18 | 2016-08-24 | 国网冀北电力有限公司秦皇岛供电公司 | A kind of safe Current Transformer Secondary test device combination |
| CN104977434A (en) * | 2015-06-10 | 2015-10-14 | 国网辽宁省电力有限公司检修分公司 | Buckle type wiring plug and use method |
| CN108232509A (en) * | 2017-12-15 | 2018-06-29 | 国网北京市电力公司 | Interface extended device |
| CN108899176A (en) * | 2018-04-02 | 2018-11-27 | 国网上海市电力公司 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
| CN108899176B (en) * | 2018-04-02 | 2019-10-11 | 国网上海市电力公司 | A kind of 400 volts of Open Type Electric Current Mutual Inductor components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ELECTRIC POWER CORP. Effective date: 20130516 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: BEIJING ELECTRIC POWER CORP. Effective date: 20130516 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130516 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Beijing Electric Power Corp. Address before: 100031 Beijing Qianmen West Street, Xicheng District, No. 41 Patentee before: Beijing Electric Power Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |
|
| CX01 | Expiry of patent term |