CN201549609U - Wire clip for conductor end of earth wire for transformer substation - Google Patents
Wire clip for conductor end of earth wire for transformer substation Download PDFInfo
- Publication number
- CN201549609U CN201549609U CN2009202768301U CN200920276830U CN201549609U CN 201549609 U CN201549609 U CN 201549609U CN 2009202768301 U CN2009202768301 U CN 2009202768301U CN 200920276830 U CN200920276830 U CN 200920276830U CN 201549609 U CN201549609 U CN 201549609U
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- Prior art keywords
- clamping plate
- clamping plates
- pair
- wire
- lead
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Abstract
The utility model relates to a wire clip for the conductor end of an earth wire for a transformer substation. The wire clip comprises a pair of clamping plates, a ground rod matching plug and an annealed copper earth wire; wherein the annealed copper earth wire is electrically connected with the ground rod matching plug and the clamping plates, one end of the pair of clamping plates is mutually connected through a pin, a stretched spring is arranged near the pin and connected with the pair of clamping plates, arc surface grooves are respectively formed in corresponding positions in the middle part of the pair of clamping plates, the grooves penetrate the width of the clamping plates, and the pair of clamping plates is made of copper. The arc surface grooves are formed in the clamping plates in the wire clip to clip a lead; because the width of the grooves is the same as the width of the clamping plates and surface contact is adopted between the grooves and the lead, the clamping force of the clamping plates on the lead is enhanced, so that the wire clip can clip the lead more tightly; simultaneously, because of the surface contact between the clamping plates and the lead, the electrical conductivity of the wire clip is increased, and the transition resistance of the wire clip is greatly reduced; when short circuit current flows by the wire clip, the voltage drop on the wire clip is very low, thereby guaranteeing the personal safety of working personnel.
Description
Technical field:
The utility model relates to electric field, and safety guard when particularly transformer station keeps in repair specifically is a kind of earth connection conductor end wire clamp that is used for transformer station.
Background technology:
After equipment has a power failure; when equipment being overhauled, testing or safeguard; for guaranteeing staff's life security; equipment is reliably linked to each other with grounding net of transformer substation; make among the personnel that work on the equipment are in the earth potential protection all the time, need to use earth connection conductor end wire clamp that earth connection is electrically connected reliably with the equipment conductor.There are the following problems for existing earth connection conductor end wire clamp: (1) intermediate plate and lead contact area are little, and chucking power is little; (2) the wire clamp transition resistance is excessive, and earth short circuit current produces higher voltage on the transition resistance of wire clamp; (3) wire clamp adopts aluminium to make, and hardness does not reach requirement, from high falling or touch hard thing easy fracture and damage; (4) wire clamp adopts aluminium, and its surface oxidation-resistant is poor, and intermediate plate contact-making surface transition resistance value is increased; (5) built-in spring reaction force is little, makes two intermediate plates little to the clamping force of lead, and wire clamp is fastening inadequately with being connected of lead.Have tightness and poorly conductive that wire clamp is connected with lead now, can not effectively guarantee staff's life security.
The utility model content:
The purpose of this utility model is to provide a kind of earth connection conductor end wire clamp that is used for transformer station, the described this earth connection conductor end wire clamp that is used for transformer station, solve the prior art center line and clamp solidity and poorly conductive, can not effectively guarantee the technical problem of staff's life security.
The purpose of this utility model is achieved through the following technical solutions: comprise a pair of clamping plate, the supporting plug of earth bar, annealed copper wire earth connection, the annealed copper wire earth connection is electrically connected with supporting plug of earth bar and clamping plate, wherein, one end of described a pair of clamping plate is connected by a bearing pin, being provided with the spring that is extended state near this bearing pin is connected with these a pair of clamping plate, be respectively equipped with the arc surface groove in this corresponding position, a pair of clamping plate middle part, this groove runs through the width of clamping plate.
Described a pair of clamping plate are made of copper.
Be arranged with baffle plate in the clamping plate periphery, baffle plate and clamping plate closely cooperate.
On clamping plate, be provided with stop screw.
Be provided with the inclined-plane that is outward-dipping in each inboard, described clamping plate lower end, below being positioned at groove.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model is provided with the arc surface groove at the clamping plate of the earth connection conductor end wire clamp that is used for transformer station and is used for the clamping lead, because recess width is identical with clamping plate, and contact for face between groove and the lead, increase the chucking power of clamping plate and lead, make wire clamp clamping lead more fastening, simultaneously owing to contact for face between clamping plate and the lead, increase the conductivity of wire clamp, the transition resistance of wire clamp reduces greatly like this, when short circuit current is flowed through wire clamp, pressure drop on it is very low, guarantees staff's life safety.If clamping plate adopt copper to constitute, can increase the conductive capability of clamping plate on the one hand, can improve the hardness of clamping plate on the other hand, from high falling or touch hard thing and be difficult for fracture damage.Be arranged with baffle plate in the clamping plate periphery, baffle plate and clamping plate closely cooperate, and can prevent that rainwater, moisture from entering wire clamp internal corrosion clamping plate and spring.Be provided with stop screw on clamping plate, this stop screw cooperates with baffle plate, can prevent from artificially spring to be crossed to draw, and damages spring.At the slot opening place inclined-plane being set can conveniently install and remove, and makes operating personnel's formula of hanging, take out stitches convenient and strength-saving.
Description of drawings:
Fig. 1 is the partial cutaway structural representation of the utility model first embodiment.
Fig. 2 is the structural representation of the utility model first embodiment.
Fig. 3 is the schematic three dimensional views of the utility model first embodiment.
Embodiment:
Embodiment 1:
As Fig. 1, Fig. 2 and shown in Figure 3, the described earth connection conductor end wire clamp that is used for transformer station, comprise a pair of clamping plate 11 and 12, the supporting plug 2 of earth bar, annealed copper wire earth connection 3, annealed copper wire earth connection 3 and supporting plug 2 of earth bar and clamping plate 11,12 are electrically connected, described a pair of clamping plate 11,12 are made of copper, at clamping plate 11,12 peripheries are arranged with baffle plate 6, baffle plate 6 and clamping plate 11,12 closely cooperate, described a pair of clamping plate 11, an end of 12 is connected by a bearing pin 4, be provided with two springs 5 and these a pair of clamping plate 11 that are extended state side by side near this bearing pin 4,12 are connected, spring 5 two ends are by locking cap 51 and clamping plate 11,12 are connected with baffle plate 6, spring 5 is high rigidity, the high energy spring, at these a pair of clamping plate 11, corresponding position, 12 middle part is respectively equipped with arc surface groove 13,14, this groove 13,14 run through clamping plate 11,12 width, groove 13 and 14 constitutes the wire casing 9 of clamping lead, on clamping plate 12, be provided with stop screw 7, when using hand rotary clamp plate 11 and 12, when turning to certain angle, the baffle plate 6 of clamping plate periphery can be run into stop screw 7, can prevent from so artificially spring 5 crossed to draw and damage spring.Be provided with the inclined- plane 15,16 that is outward-dipping in each inboard, described clamping plate 11,12 lower end, below being positioned at groove, like this more convenient operation when hanging lead 8.
Certainly, the clamping plate lower end, be positioned at the wire casing exit and also arc surface can be set, so that the mounting or dismounting of lead.
Claims (5)
1. earth connection conductor end wire clamp that is used for transformer station, comprise a pair of clamping plate, the supporting plug of earth bar, annealed copper wire earth connection, the annealed copper wire earth connection is electrically connected with supporting plug of earth bar and clamping plate, it is characterized in that: an end of described a pair of clamping plate is connected by a bearing pin, being provided with the spring that is extended state near this bearing pin is connected with these a pair of clamping plate, be respectively equipped with the arc surface groove in this corresponding position, a pair of clamping plate middle part, this groove runs through the width of clamping plate.
2. the earth connection conductor end wire clamp that is used for transformer station as claimed in claim 1, it is characterized in that: described a pair of clamping plate are made of copper.
3. the earth connection conductor end wire clamp that is used for transformer station as claimed in claim 2, it is characterized in that: be arranged with baffle plate in the clamping plate periphery, baffle plate and clamping plate closely cooperate.
4. the earth connection conductor end wire clamp that is used for transformer station as claimed in claim 2 is characterized in that: be provided with stop screw on clamping plate.
5. as claim 1 or 2 or the 3 or 4 described earth connection conductor end wire clamps that are used for transformer station, it is characterized in that: be provided with the inclined-plane that is outward-dipping in each inboard, described clamping plate lower end, below being positioned at groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202768301U CN201549609U (en) | 2009-12-10 | 2009-12-10 | Wire clip for conductor end of earth wire for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202768301U CN201549609U (en) | 2009-12-10 | 2009-12-10 | Wire clip for conductor end of earth wire for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549609U true CN201549609U (en) | 2010-08-11 |
Family
ID=42604789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202768301U Expired - Fee Related CN201549609U (en) | 2009-12-10 | 2009-12-10 | Wire clip for conductor end of earth wire for transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549609U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735894A (en) * | 2011-04-10 | 2012-10-17 | 上海市电力公司 | Plug-in contact resistance measurement chuck |
| CN104409872A (en) * | 2012-12-18 | 2015-03-11 | 滁州华尊电气科技有限公司 | High-safety and stable-structure short circuit grounding device |
| CN111573431A (en) * | 2020-05-15 | 2020-08-25 | 国网山东省电力公司宁津县供电公司 | Portable frame of earth connection that high altitude construction used |
-
2009
- 2009-12-10 CN CN2009202768301U patent/CN201549609U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735894A (en) * | 2011-04-10 | 2012-10-17 | 上海市电力公司 | Plug-in contact resistance measurement chuck |
| CN102735894B (en) * | 2011-04-10 | 2015-04-15 | 上海市电力公司 | Plug-in contact resistance measurement chuck |
| CN104409872A (en) * | 2012-12-18 | 2015-03-11 | 滁州华尊电气科技有限公司 | High-safety and stable-structure short circuit grounding device |
| CN104409872B (en) * | 2012-12-18 | 2017-02-08 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | Short circuit grounding device |
| CN111573431A (en) * | 2020-05-15 | 2020-08-25 | 国网山东省电力公司宁津县供电公司 | Portable frame of earth connection that high altitude construction used |
| CN111573431B (en) * | 2020-05-15 | 2022-06-03 | 国网山东省电力公司宁津县供电公司 | Portable frame of earth connection that high altitude construction used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111210 |