CN202423580U - Grounding-wire-falling preventing grounding contact for transformer substation - Google Patents
Grounding-wire-falling preventing grounding contact for transformer substation Download PDFInfo
- Publication number
- CN202423580U CN202423580U CN 201120510984 CN201120510984U CN202423580U CN 202423580 U CN202423580 U CN 202423580U CN 201120510984 CN201120510984 CN 201120510984 CN 201120510984 U CN201120510984 U CN 201120510984U CN 202423580 U CN202423580 U CN 202423580U
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- Prior art keywords
- grounding
- wire
- wire clamp
- grounding contact
- contact
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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 utility model discloses a grounding-wire-falling preventing grounding contact for a transformer substation, which is clamped more steadily and is not easy to fall off. The grounding-wire-falling preventing grounding contact comprises a clasp fixedly arranged on a grounding wire clamp, wherein the two ends of the clasp are fixed by using fastening bolts; and the fastening bolts are clamped by clamping parts of the grounding wire clamp. The grounding-wire-falling preventing grounding contact has the advantages that the grounding contact is mounted more steadily, the electrical conductivity is good and the hardness is high; under the action of compression joint of the bolts, a copper plate is fixedly and firmly connected with an electrical conducting rod of a disconnecting link, is closely and well contacted with the electrical conducting rod and cannot be loosened; and since the bolts are suitably matched with the grounding wire clamp in size, the grounding wire clamp is hung firmly, is well contacted and clamped after being hung and cannot slip off.
Description
Technical field
The utility model relates to the electric power facility service kit, relates in particular to the anti-ground wire of a kind of transformer station grounding contact that falls.
Background technology
During work such as converting station high voltage electrical apparatus overhauls, test, need and to be made the maintainer, to be in by maintenance equipment among " encirclement " of earth connection by maintenance equipment ground, be in safe zero potential all the time.The ground connection effect of ground connection disconnecting link generally is good, but for the subsidiary high voltage electric equipment of installing the ground connection disconnecting link, makes peace and need use transformer station's multiply soft copper earth connection to carry out ground connection when arranging.
Through our repeatedly overhaul of the equipments of each transformer station of company; We observe and find owing to high voltage electric equipment wiring, layout, earth connection wire clamp reasons in structure; When using ground connection, occur that earth connection wire clamp and poor wire connection are good, clamping connection is not fastening, landing injures porcelain vase top layer, ground wire wire clamp by a crashing object and lands the serious consequence that ura-rate is decreased from the lead.Reason is that the transforming plant main transformer master advances the lead-in wire installing of switch first disconnecting link to main transformer side portal frame vertically, part 110kV, 35kV outlet at interval the installing of first disconnecting link to outlet portal frame lead-in wire vertically, lead-in wire and horizontal line be near 90 ° of angles, be vertical "
⊥" state; Because earth connection wire clamp reasons in structure makes the earth connection wire clamp insecure to the lead clamping connection.After the earth connection landing, make the maintainer lose the protection of earth connection, its life security is directly constituted a threat to; This will cause: the earth connection wire clamp injures porcelain insulating by a crashing object, needs to change, and brings economic loss, increases maintainer's workload, and equipment can't be put into operation, brings the loss of supply, and influences relevant performance assessment criteria such as power supply reliability.Also have the earth connection wire clamp is hung on the isolating switch conducting rod, because of the conducting rod diameter is bigger, earth connection wire clamp and conducting rod size are mismatched, and will make loose contact between the two, and clamping connection is not tight, and the earth connection wire clamp is prone to slippage, so the method is also inadvisable.
The utility model content
The purpose of the utility model just provides the anti-ground wire of the more stable transformer station that is not easy to drop of a kind of clamping and falls grounding contact to stop potential safety hazard.
The utility model comprises the card of embracing that is fixed on the earth connection wire clamp, embraces the card two ends and fixes the clamping part clamped fixing bolt of earth connection wire clamp with fastening bolt.
Embrace the sheet material of card for the copper product of circular arc.
The advantage of the utility model is to make the installation of grounding contact more stable, good conductivity, and hardness is high, and under the bolt crimping, copper coin material and the fixation of disconnecting link conducting rod, contact are closely good, non-loosening.It is suitable that bolt cooperates with earth connection wire clamp size, and suspension is firm, and suspension back contact gripping is good, no slippage.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation:
Fig. 1 is the sketch map of this prior art installment state;
Fig. 2 is the sketch map of the utility model installment state.
Embodiment
Embodiment
The utility model comprises that being fixed on embracing on the earth connection wire clamp 2 blocks 3, embraces card 3 two ends and fixes the clamping part clamped fixing bolt 4 of earth connection wire clamp 2 with fastening bolt 4.
Embracing card 3 is the sheet material of the copper product of circular arc.
During installation, embracing card 3 and adopt 5mm * 50mm * 260mm copper coin material, respectively at 25mm place, two end distance terminations, is center of circle punching with this point along copper coin material center line, and the diameter in hole is φ 18mm, cooperates isolating switch conducting rod 1 diameter dimension to carry out machinery and goes for a stroll.In copper coin material two stomidiums, wear a φ 16mm bolt, fix, can make success with two fastening bolts 4.Bolt is guaranteed in the horizontal direction after installing.A whole set of embracing must be passed through anti-oxidation, anti-corrosion treatment before card 3 is installed.All raised tip parts are all carried out the circular arc processing, prevent point discharge.
Claims (2)
1. the anti-ground wire of the transformer station grounding contact that falls; It is characterized in that: the anti-ground wire of the said transformer station grounding contact that falls comprises being fixed on and embraces card (3) on the earth connection wire clamp (2); It is fixing with fastening bolt (4) to embrace card (3) two ends, the clamping part clamped fixing bolt (4) of earth connection wire clamp (2).
2. the anti-ground wire of a kind of transformer station as claimed in claim 1 grounding contact that falls, it is characterized in that: said armful of card (3) is the sheet material of the copper product of circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120510984 CN202423580U (en) | 2011-12-09 | 2011-12-09 | Grounding-wire-falling preventing grounding contact for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120510984 CN202423580U (en) | 2011-12-09 | 2011-12-09 | Grounding-wire-falling preventing grounding contact for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423580U true CN202423580U (en) | 2012-09-05 |
Family
ID=46748309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120510984 Expired - Fee Related CN202423580U (en) | 2011-12-09 | 2011-12-09 | Grounding-wire-falling preventing grounding contact for transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565232A (en) * | 2017-08-30 | 2018-01-09 | 国网湖南省电力公司 | A kind of electrical equipment temporary earthing device |
-
2011
- 2011-12-09 CN CN 201120510984 patent/CN202423580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565232A (en) * | 2017-08-30 | 2018-01-09 | 国网湖南省电力公司 | A kind of electrical equipment temporary earthing device |
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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: 20120905 Termination date: 20121209 |