CN203721919U - Grounding wire used for cable plugging head of box type transformer - Google Patents

Grounding wire used for cable plugging head of box type transformer Download PDF

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Publication number
CN203721919U
CN203721919U CN201420106376.6U CN201420106376U CN203721919U CN 203721919 U CN203721919 U CN 203721919U CN 201420106376 U CN201420106376 U CN 201420106376U CN 203721919 U CN203721919 U CN 203721919U
Authority
CN
China
Prior art keywords
cable
earth connection
type transformer
box type
grounding wire
Prior art date
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.)
Active
Application number
CN201420106376.6U
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Chinese (zh)
Inventor
苏爱国
邱永涛
陈坤洲
李增荣
张仁忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Shishi Power Supply Co of State Grid Fujian Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Shishi Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Fujian Electric Power Co Ltd, Shishi Power Supply Co of State Grid Fujian Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420106376.6U priority Critical patent/CN203721919U/en
Application granted granted Critical
Publication of CN203721919U publication Critical patent/CN203721919U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A grounding wire used for a cable plugging head of a box type transformer comprises a three-phase grounding wire and a grounding wire clamp. The grounding wire further comprises three cable connectors which are used for connecting cable connecting ends of the three-phase grounding wire with the cable plugging head; a grounding end of the three-phase grounding wire is connected with the grounding wire clamp; each cable connecting end of the three-phase grounding wire is connected with one end of each cable connector; and the other end of the cable connector forms an plugging sleeve which is shaped to match with the cable plugging head of the box type transformer. The grounding wire of the utility model can be used for the grounding of the cable plugging head of the box type transformer so as to improve construction safety quality in cable maintenance and testing. The grounding wire used for the cable plugging head of the box type transformer has the advantages of small size, light weight, portable convenience, reliable insulation property, and convenient assembly and disassembly.

Description

A kind of earth connection for box type transformer cable plug head
Technical field
The utility model relates to a kind of electricity earthing cable, particularly a kind of earth connection for box type transformer cable plug head.
Background technology
American-type box becomes due to compact conformation, takes up an area less, in electric power system, extensively uses.While requiring cable maintenance, test according to < < safety > >, the two ends of cable all should ground connection.At present, in electric power system, many street lamps changes and public change are all box changes, and this box change is connected with cable, substantially adopt plug-type cable end, when the cable line fault of this box change, while needing interruption maintenance, very difficult by three-phase shortcircuit ground connection near the cable end of box change one end.
At present, the three-phase shortcircuit of selling on market is connected wires, and cannot therefore be not easy to cable maintenance, the test of this kind of transformer for the ground connection of this kind of cable end, and make cable maintenance, test have very large potential safety hazard.
Utility model content
Main purpose of the present utility model is the shortcoming that overcomes prior art, and a kind of cable plug head ground connection that can be used for box type transformer is provided, the earth connection for box type transformer cable plug head of the construction safety quality when overhauling, testing to improve cable.
The utility model adopts following technical scheme:
A kind of earth connection for box type transformer cable plug head, include three-phase type earth connection and earthing clamp, also include for connecting the cable link of three-phase type earth connection and three cable connectors of cable plug head, the earth terminal of described three-phase type earth connection is connected in earthing clamp, the cable link of three-phase type earth connection is connected in cable connector one end, and the cable connector other end forms the insertion pipe matching with the cable plug head shapes of box type transformer.
Further, described cable connector one end is formed for the fixedly joint sleeve of the cable link of three-phase type earth connection, passes through bolt and nut check after the cable link crimping copper tip of described three-phase type earth connection in described joint sleeve.
Further, the cable link of described three-phase type earth connection lock onto in the joint sleeve of cable connector and is wound up as one by the insulating self-adhesive band identical with box type transformer electric pressure, and outside it sheathed insulation crust.
Further, after the earth terminal crimping copper tip of described three-phase type earth connection, pass through bolt and nut check on earthing clamp.
Further, the outer wall of described cable connector middle part is protruded and is formed with restriction snap ring.
From above-mentioned to description of the present utility model, compared with prior art, the beneficial effects of the utility model are: the cable plug head ground connection that can be used for box type transformer, construction safety quality when overhauling, testing to improve cable, volume is little, quality is light, be easy to carry, and insulation characterisitic is reliable, fills, tear convenience open.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram of the utility model embodiment;
Fig. 2 is the part-structure stereogram of the utility model embodiment.
In figure: 1. three-phase type earth connection, 2. earthing clamp, 3. cable connector, 30. joint sleeves, 31. insertion pipes, 32. limit snap ring, 4. copper tips.
Embodiment
Below by embodiment, the utility model will be further described.
See figures.1.and.2, a kind of earth connection for box type transformer cable plug head of the present utility model, includes three-phase type earth connection 1 and earthing clamp 2 and for connecting the cable link of three-phase type earth connection 1 and three cable connectors 3 of cable plug head.During the box type transformer that is 10KV for electric pressure, after the earth terminal crimping copper tip 4 of described three-phase type earth connection 1, pass through bolt and nut check on earthing clamp 2; Described cable connector 3 one end are formed for the fixedly joint sleeve 30 of the cable link of three-phase type earth connection 1, after the cable link crimping copper tip 4 of described three-phase type earth connection 1, pass through bolt and nut check in described joint sleeve 30, then through 10KV insulating self-adhesive band, be wound up as one, and outside it sheathed insulation crust, enable to bear the certain residual voltage of cable, guarantee that staff is not electrically shocked damage when inserting cable plug head; Described cable connector 3 other ends form the insertion pipe 31 matching with the cable plug head shapes of 10KV box type transformer.The outer wall middle part of described cable connector 3 is protruded to be formed with and is limited snap ring 32.
See figures.1.and.2, the conductor cross-section of described three-phase type earth connection 1 is 25mm 2, its earth terminal and cable link all pass through 25mm 2copper tip 4 crimping.
See figures.1.and.2, when the utility model overhauls, tests for the cable of 10KV box type transformer, comprise following operating procedure:
1. fulfil the power failure operation of " two tickets ", and carried out safety measure;
2. the ground wire stand of device and on-the-spot ground connection band iron are screwed, make the two close contact;
3. pull up the cable plug head of 10KV box type transformer one end, and by inserting mutually in three insertion pipes 31 of cable connector 3 of the present utility model, three-phase type earth connection 1 is fully contacted, to reduce contact resistance with the conducting rod in cable plug head.
Above are only an embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection range.

Claims (5)

1. the earth connection for box type transformer cable plug head, include three-phase type earth connection and earthing clamp, it is characterized in that: also include for connecting the cable link of three-phase type earth connection and three cable connectors of cable plug head, the earth terminal of described three-phase type earth connection is connected in earthing clamp, the cable link of three-phase type earth connection is connected in cable connector one end, and the cable connector other end forms the insertion pipe matching with the cable plug head shapes of box type transformer.
2. a kind of earth connection for box type transformer cable plug head as claimed in claim 1, it is characterized in that: described cable connector one end is formed for the fixedly joint sleeve of the cable link of three-phase type earth connection, after the cable link crimping copper tip of described three-phase type earth connection, pass through bolt and nut check in described joint sleeve.
3. a kind of earth connection for box type transformer cable plug head as claimed in claim 2, it is characterized in that: the cable link of described three-phase type earth connection lock onto in the joint sleeve of cable connector and is wound up as one by the insulating self-adhesive band identical with box type transformer electric pressure, and outside it sheathed insulation crust.
4. a kind of earth connection for box type transformer cable plug head as claimed in claim 1, is characterized in that: after the earth terminal crimping copper tip of described three-phase type earth connection, pass through bolt and nut check on earthing clamp.
5. a kind of earth connection for box type transformer cable plug head as claimed in claim 1, is characterized in that: the outer wall middle part of described cable connector is protruded and is formed with restriction snap ring.
CN201420106376.6U 2014-03-10 2014-03-10 Grounding wire used for cable plugging head of box type transformer Active CN203721919U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420106376.6U CN203721919U (en) 2014-03-10 2014-03-10 Grounding wire used for cable plugging head of box type transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420106376.6U CN203721919U (en) 2014-03-10 2014-03-10 Grounding wire used for cable plugging head of box type transformer

Publications (1)

Publication Number Publication Date
CN203721919U true CN203721919U (en) 2014-07-16

Family

ID=51161048

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420106376.6U Active CN203721919U (en) 2014-03-10 2014-03-10 Grounding wire used for cable plugging head of box type transformer

Country Status (1)

Country Link
CN (1) CN203721919U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105024183A (en) * 2015-08-09 2015-11-04 曾宪雄 Improved insulating platform grounding line
CN105048119A (en) * 2015-06-16 2015-11-11 国网天津市电力公司 Portable grounding wire for test
CN106291000A (en) * 2016-08-25 2017-01-04 太原鹏跃电子科技有限公司 Passenger train feeder cable Insulation monitoring plug special connecting line
CN112397913A (en) * 2020-09-23 2021-02-23 贵州电网有限责任公司 Novel close looks formula combination earth connection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105048119A (en) * 2015-06-16 2015-11-11 国网天津市电力公司 Portable grounding wire for test
CN105024183A (en) * 2015-08-09 2015-11-04 曾宪雄 Improved insulating platform grounding line
CN106291000A (en) * 2016-08-25 2017-01-04 太原鹏跃电子科技有限公司 Passenger train feeder cable Insulation monitoring plug special connecting line
CN112397913A (en) * 2020-09-23 2021-02-23 贵州电网有限责任公司 Novel close looks formula combination earth connection device

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