CN205484415U - Convenient extension instrument of CT contact nut - Google Patents
Convenient extension instrument of CT contact nut Download PDFInfo
- Publication number
- CN205484415U CN205484415U CN201521135571.2U CN201521135571U CN205484415U CN 205484415 U CN205484415 U CN 205484415U CN 201521135571 U CN201521135571 U CN 201521135571U CN 205484415 U CN205484415 U CN 205484415U
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- China
- Prior art keywords
- pullover
- cable
- nut
- angle steel
- instrument
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Abstract
The utility model discloses a convenient extension instrument of CT contact nut, convenient extension instrument of CT contact nut includes: pullover, the angle steel, cable and the terminal outgoing lines that have hexagon socket head cap screw, wherein, pullover one end hexagon socket head cap screw inlays on CT contact nut, pullover 11 the other end passes through the angle steel is connected the one end of cable, the other end of cable is connected terminal outgoing lines, terminal outgoing lines is used for connecting the liter and flows testing equipment. The utility model discloses a convenient extension instrument of CT contact nut can effectively reduce once rising the test error that flows in the experiment, improves the accuracy of test result to improve efficiency of software testing.
Description
Technical field
This utility model relates to technical field of electric power, particularly relates to a kind of CT and contacts the convenient expander tool of nut.
Background technology
Current transformer (CT, Current Transformer) the contact nut of 10kV switch cubicle uses iron and steel material quality, and contact nut is short and small smooth, and after operation hours length, contact nut is oxidizable, aging.Current test method is to use wire clamp binding nut, first, wire clamp is little with the contact surface of nut, wire clamp is used for multiple times rear spring stress to be reduced, add upper cap nut oxidation, aging, make occur that contact surface discharges during test, the bad phenomenon such as skidding and heating, wire clamp is serious with nut connection position heating, threat is brought to testing crew and testing equipment, additionally, owing to contact resistance is excessive, also affect the accuracy of test data, testing crew the most repeatedly rotates wire clamp when carrying out CT rising test, repeatedly test, not only inefficiency, and test result error is big.
Summary of the invention
For solving the technical problem of existing existence, this utility model provides a kind of CT to contact the convenient expander tool of nut.
For reaching above-mentioned purpose, the technical scheme of this utility model embodiment is achieved in that
A kind of CT contacts the convenient expander tool of nut, and the described CT contact convenient expander tool of nut includes: have pullover, angle steel, cable and the outlet terminal of hexagon socket head cap screw；Wherein, the described hexagon socket head cap screw of described pullover one end is embedded on CT contact nut, the described other end of pullover 11 connects described outlet terminal by one end of cable described in described Bolted angle connection, the other end of described cable, and described outlet terminal is used for connecting rising test equipment.
Wherein, described pullover middle part is provided with Magnet, and described Magnet is for strengthening the adhesion that described hexagon socket head cap screw contacts between nut with described CT.
Wherein, a diameter of 10mm, 14mm, 17mm or 19mm of described hexagon socket head cap screw.
Wherein, one end of the described described angle steel of pullover connection is provided with screwed hole；Described pullover screwed hole connects a screwed hole of described angle steel by bolt arrangement.
Wherein, one end of described cable connects described angle steel by fixture, and the other end connects described outlet terminal by fixture.
Wherein, one end of described cable connects described angle steel by bolt arrangement.
Wherein, described cable is copper cash.
CT of the present utility model contacts the convenient expander tool of nut, it is possible to effectively reduces the test error in a rising test, improves the accuracy of test result, and improve testing efficiency.
Accompanying drawing explanation
In accompanying drawing (it is not necessarily drawn to scale), the parts that similar reference can be similar described in the different views.The similar reference numerals with different letter suffix can represent the different examples of similar component.Accompanying drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is the overall composition structural representation of this utility model CT contact convenient expander tool of nut；
Fig. 2 is the structural representation of this utility model embodiment CT contact nut convenient expander tool angle steel；
Fig. 3-1 is a set of header structure schematic diagram of this utility model CT contact convenient expander tool of nut；
Fig. 3-2 is the another pullover structural representation of this utility model CT contact convenient expander tool of nut；
Fig. 3-3 is the another pullover structural representation of this utility model CT contact convenient expander tool of nut；
Fig. 3-4 is the another pullover structural representation of this utility model CT contact convenient expander tool of nut；
Fig. 4 is the structural representation of screwed hole on pullover in this utility model embodiment CT contact convenient expander tool of nut for angle cleat；
Fig. 5 is the structural representation of this utility model embodiment CT contact pullover upper hex bolts joint of the convenient expander tool of nut.
Detailed description of the invention
This utility model provides a kind of CT to contact the convenient expander tool of nut, to improve the work efficiency of testing crew, reduces the error of CT rising test result.
As it is shown in figure 1, the CT contact convenient expander tool of nut includes having pullover 11, angle steel 12, cable 13 and the outlet terminal 14 of hexagon socket head cap screw 111.Wherein, described pullover 11 one end with hexagon socket head cap screw 111 are embedded on CT contact nut (not shown), the described other end of pullover 11 connects one end of described cable 13 by described angle steel 12, the other end of described cable 13 connects described outlet terminal 14, and described outlet terminal 14 is used for connecting rising test equipment.
As it is shown in figure 1, the described middle part of pullover 11 is provided with Magnet 112, this Magnet is for strengthening the adhesion that described hexagon socket head cap screw 111 contacts between nut with described CT.Concrete, cast a circular hole at described pullover middle part, described Magnet 112 is placed in this circular hole.Preferably, a length of 5mm of this circular hole.
As it is shown in figure 1, pullover 11 other ends connect described angle steel 12 by bolt arrangement.Concrete, screwed hole 113 can be provided with in one end of pullover 11 angle cleats 12, by bolt arrangement, this screwed hole 113 of pullover 11 be connected with the screwed hole on angle steel 12 and fix, thus coupling together pullover 11 with angle steel 12.Here, the preferred a diameter of 10mm of this screwed hole 113 on pullover 11, the screwed hole of a length of 15mm.
Being illustrated in figure 2 the structural representation of angle steel 12 1 preferred embodiment, angle steel 12 has two screwed holes, a screwed hole connects pullover 11, and another screwed hole connects cable 13.Preferably, a diameter of 10mm of screwed hole on angle steel 12.
As it is shown in figure 1, angle steel 12 can be connected with cable 13 by the way of fixture 15 is fixing.The thickness of fixture 15 is preferably 5mm.It is to say, one end of cable 13 is fixedly connected on a screwed hole of angle steel 12 by fixture 15.In actual application, cable 13 can also be connected on a screwed hole of angle steel 12 by bolt arrangement.
As it is shown in figure 1, cable 13 one end is fixedly connected on angle steel 12 by fixture 15, the other end can also be connected on outlet terminal 14 by fixture.The thickness of this fixture is preferably also 5mm.In actual application, flexible cable selected by cable 13, for example, it is possible to select copper cash or other similar cables.Preferably, cable 13 can select cross-sectional area to be 100mm2, the copper cash of a length of 2.5m.
In actual application, according to practical application request, the hexagon socket head cap screw 111 of pullover 11 can be set to different size.As shown in Fig. 3-1, Fig. 3-2, Fig. 3-3 and Fig. 3-4, the hexagon socket head cap screw 111 of pullover 11 can be the most a diameter of 10mm or the most a diameter of 14mm or the most a diameter of 17mm or the most a diameter of 19mm.
As shown in Figure 4, Figure 5, for the structural representation of screwed hole and the structural representation of pullover 11 hexagon socket head cap screw 111 blank areas of angle cleat 12 on the most pullover 11.
During test, outlet terminal 14 is connected on rising test instrument, and before the test, application sand papering CT contacts nut, remove oxide and dust, such that contact resistance is less between CT contact nut and pullover 11 so that the result of test is more accurate.
Problem implements major measure: make a continuously active union joint, as shown below, and union joint A end is connected to flow up instrument ramp, and union joint B end is connected to CT and contacts nut.
The above, preferred embodiment the most of the present utility model, it is not intended to limit protection domain of the present utility model.
Claims (7)
1. a CT contacts the convenient expander tool of nut, it is characterised in that the described CT contact convenient expander tool of nut includes: have pullover, angle steel, cable and the outlet terminal of hexagon socket head cap screw；
Wherein, the described hexagon socket head cap screw of described pullover one end is embedded on CT contact nut, the other end of described pullover (11) connects described outlet terminal by one end of cable described in described Bolted angle connection, the other end of described cable, and described outlet terminal is used for connecting rising test equipment.
Instrument the most according to claim 1, it is characterised in that described pullover middle part is provided with Magnet, described Magnet is for strengthening the adhesion that described hexagon socket head cap screw contacts between nut with described CT.
Instrument the most according to claim 1, it is characterised in that a diameter of 10mm, 14mm, 17mm or 19mm of described hexagon socket head cap screw.
Instrument the most according to claim 1, it is characterised in that one end of the described described angle steel of pullover connection is provided with screwed hole；Described pullover screwed hole connects a screwed hole of described angle steel by bolt arrangement.
Instrument the most according to claim 1, it is characterised in that one end of described cable connects described angle steel by fixture, the other end connects described outlet terminal by fixture.
Instrument the most according to claim 5, it is characterised in that one end of described cable connects described angle steel by bolt arrangement.
7. according to the instrument described in claim 1,5 or 6, it is characterised in that described cable is copper cash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135571.2U CN205484415U (en) | 2015-12-31 | 2015-12-31 | Convenient extension instrument of CT contact nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135571.2U CN205484415U (en) | 2015-12-31 | 2015-12-31 | Convenient extension instrument of CT contact nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205484415U true CN205484415U (en) | 2016-08-17 |
Family
ID=56663069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521135571.2U Active CN205484415U (en) | 2015-12-31 | 2015-12-31 | Convenient extension instrument of CT contact nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205484415U (en) |
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2015
- 2015-12-31 CN CN201521135571.2U patent/CN205484415U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |