CN203553870U - Integral 757mm 110kV dry type cable terminal - Google Patents

Integral 757mm 110kV dry type cable terminal Download PDF

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Publication number
CN203553870U
CN203553870U CN201320679304.6U CN201320679304U CN203553870U CN 203553870 U CN203553870 U CN 203553870U CN 201320679304 U CN201320679304 U CN 201320679304U CN 203553870 U CN203553870 U CN 203553870U
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China
Prior art keywords
integral
dry type
epoxy
terminal
cable terminal
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CN201320679304.6U
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Chinese (zh)
Inventor
唐宝玉
林书民
翟玉芝
刘宏波
周晓建
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SHENYANG GUOLIAN CABLE ACCESSORIES MANUFACTURING Co Ltd
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SHENYANG GUOLIAN CABLE ACCESSORIES MANUFACTURING Co Ltd
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Priority to CN201320679304.6U priority Critical patent/CN203553870U/en
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Abstract

The utility model relates to an integral 757mm 110kV dry type cable terminal, and belongs to cable accessories in a high-voltage power transmission system. The integral 757mm 110kV dry type cable terminal is composed of an upper fitting, a movable contactor, an epoxy sleeve, a stress cone, a connecting flange, a spring compressing device, a tail pipe, a grounding terminal and a sealing ring, wherein the epoxy sleeve is poured in vacuum and molded in one step by adopting an epoxy insulator and an embedded sleeve electrode; the outer surface at one end of the movable contactor is embedded with two annular spiral spring contacts and keeps elastic contact with the upper fitting, and the other end is connected with a cable core, buckled and fixed with the cable core; the movable contactor can be plugged in and pulled out from the upper fitting; and the tail pipe is an aluminum pipe being externally sprayed with a fluorocarbon paint protection layer. The integral 757mm 110kV dry type cable terminal has the advantages of simple structure, convenient installation, multiple contacts, good conductivity and good stability.

Description

A kind of overall 757mm110kV dry cable terminal
Technical field
The utility model relates to the electric cable accessories in high voltage power transmisson system.
Background technology
Overall 757mm110kV dry cable terminal is an one for dry cable terminal, is mainly used in the power consumption equipments such as appliance switch, transformer and is connected with the circuit of service cable, and be fixed in the housing of power consumption equipment.Its connected mode is that external cable reliably contacts with circuit in power consumption equipment and conducts electricity through moving contactor, top gold utensil.Visible, in moving contactor with cable core, outer be necessary assurance with reliable contact of top gold utensil, 757mm110kV dry cable terminal should meet IEC60859, GB/T 22381 gas-insulated GIS terminal standard interface requirements.This terminal has two kinds of interface sizes with power consumption equipment connecting interface by IEC60859, GB/T 22381 standards: one is that 470mm highly coordinates, and one is that 757mm highly coordinates.At present, the dry cable terminal product that domestic 757mm highly coordinates is less, is the non-dry type structure containing dielectric mostly, even if there is the cable termination of minority 757mm dry construction, is also to lengthen after top gold utensil entirety reaches 757mm and substitute use with 470mm.Moving contactor generally adopts with the top gold utensil way of contact, and outer wall around the home " watchband type " fingertip contacts to realize with maintenance and upper electrode." watchband type " fingertip series copper alloy lamellar rectangle wrapping machine adds compressing, and it relies on the elastic deformation of each unit that contact is provided, and forms plug-in connected mode.In addition, the tail pipe of known 110kV dry cable terminal is the sandblast of aluminium casting outer surface and makes.
Above-mentioned 110kV dry cable terminal has the following disadvantages in manufacturing and using practice: 1, conductor is exposed long, and insulation effect is low, poor stability.Also there is the hidden danger of loose contact.2, moving contactor outer wall " watchband type " fingertip around the home, because profile is that machining accuracy and the quality of fit of Rectangular Spring to its embedding slot had relatively high expectations, long-term use easily causes the compression set of " watchband type " fingertip and loose contact produces electric discharge and cause the fault frequency to increase.3, the cable protection pipe of the noisy processing of aluminium type casting moulding outer surface spray, outward appearance is coarse, and easily trapped fuel dirt is not easy to clean.
Summary of the invention
The purpose of this utility model is to provide a kind of low cost of manufacture, easy for installation, reliable overall 757mm110kV dry type GIS cable termination.
For achieving the above object, the technical solution of the utility model is to provide a kind of overall 757mm110kV dry type GIS cable termination, it consists of top gold utensil, epoxy bushing, moving contactor, stress cone, adpting flange, spring attachment, tail pipe, earth terminal, O type circle, and wherein said epoxy bushing is by epoxy insulator and be nested with pipe electrode vacuum pouring one-shot forming.Moving contactor one end outer surface is embedded with two garter spring fingertips and keeps Elastic Contact with top gold utensil, and other end stube cable core is withheld fixing.Moving contactor can plug at top gold utensil inner chamber.Tail pipe is that aluminum hull sprays fluorine carbon paint overcoat outward.
With known technology comparison, the utility model entirety 757mm structure meets standard fit dimension, meets user's non-lengthening conductor size to 757 cooperation demand, electrode and epoxy insulator vacuum pouring moulding in epoxy bushing.Two garter spring fingertips that moving contactor outer surface is embedded with, its material selection elasticity and high conductive copper alloy silk, helical spring distortion provides the contact of contact point and carries rated current, dynamic and thermal stability electric current.Spring is under working deformation in a big way, and the pressure of contact point changes less, and contact resistance variation is little, electric performance stablity.The small variations that spring touch finger manufacturing tolerance and fingertip are set groove dimensions is very little on its electric conductivity impact.It is simple in structure, size is little, easy for installation, contact point is many, conduct electricity very well, discharge capacity is large, electronic and thermal stability is high, it is little to wear and tear, can meet plug action need 10000 times.The moving contactor other end adopt outer wall that mechanical clasps presses contactor with guarantee with its simple in structure, easy manufacture of close contact of cable core, easy to install rapidly, coordinates reliably tight, thereby product total quality is improved, extend useful life, and maintenance cost reduces.Tail pipe is die casting aluminum hull, and shell sprays fluorine carbon paint overcoat outward, has good Corrosion Protection, non-maintaining, outside light, and automatically cleaning, has improved the product quality of overall terminal.More than improve and not only can meet serviceability and can meet IEC60859, GB/T 22381 standard fit dimensions.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model
Accompanying drawing 2 is for moving the screw-contact schematic diagram that contactor outer surface is set in the utility model
The moving contactor 4-bushing electrode 5-epoxy bushing 6-stress cone 7-adpting flange 8-spring attachment 9-tail pipe 10-earth terminal 11-leader cable 12-sealing ring of 1-top gold utensil 2-spring touch finger 3-in figure.
Embodiment
Below in conjunction with accompanying drawing, for the 110kV 630mm for combined electrical apparatus switchgear 2core external diameter 30.3mm, sheath GIS cable termination describes structure of the present utility model and assembling process in detail.
1, prefabricated epoxy bushing (5): with epoxy insulator and bushing electrode (4) vacuum pouring one-shot forming.
2, the silver-plated spring touch finger of external coordination prefabricated spiral (2), and spring touch finger (2) is installed in the outer caulking groove of moving contactor (3) in advance.
3, prefabricated tail pipe (9): the outer polishing spraying of aluminum hull fluorine carbon paint overcoat.
4, assembling process: by adpting flange (7), the tail pipe (9) of band sealing ring (12), spring attachment (8) is nested into moving contactor (3) that stress cone (6)-mounting strap spring touch finger (2) is installed after leader cable (11)-exploitation cable-by top gold utensil (1) successively, sealing ring (12) and epoxy bushing (5) connect into sub-assembly-sub-assembly is installed in switch cubicle-will install and move contactor (3), be inserted on the epoxy bushing sub-assembly in switch cubicle-mounting spring hold down gag (8)-installation tail pipe (9)-installation earth terminal (10)-installation adpting flange (7) of the cable assembly of stress cone (6).

Claims (1)

1. an overall 757mm110kV dry cable terminal, consists of top gold utensil (1), moving contactor (3), epoxy bushing (5), stress cone (6), adpting flange (7), spring attachment (8), tail pipe (9), earth terminal (10) sealing ring (12); It is characterized in that described epoxy bushing (5) is by epoxy insulator and bushing electrode (4) vacuum pouring one-shot forming; Moving contactor (3) outer surface is embedded with two garter spring fingertips (2) and keeps Elastic Contact with top gold utensil (1); Tail pipe (9) sprays fluorine carbon paint overcoat outward for aluminum hull.
CN201320679304.6U 2013-10-31 2013-10-31 Integral 757mm 110kV dry type cable terminal Active CN203553870U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320679304.6U CN203553870U (en) 2013-10-31 2013-10-31 Integral 757mm 110kV dry type cable terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320679304.6U CN203553870U (en) 2013-10-31 2013-10-31 Integral 757mm 110kV dry type cable terminal

Publications (1)

Publication Number Publication Date
CN203553870U true CN203553870U (en) 2014-04-16

Family

ID=50471939

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320679304.6U Active CN203553870U (en) 2013-10-31 2013-10-31 Integral 757mm 110kV dry type cable terminal

Country Status (1)

Country Link
CN (1) CN203553870U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104594695A (en) * 2014-12-27 2015-05-06 重庆市喜植机械设备有限公司 High-voltage electricity transmitting device
CN104594694A (en) * 2014-12-27 2015-05-06 重庆市喜植机械设备有限公司 Electric power high voltage transmission device
CN104612456A (en) * 2015-01-20 2015-05-13 徐勇 High voltage transmission device
CN104631899A (en) * 2015-01-20 2015-05-20 徐勇 High voltage transmission device
CN105158652A (en) * 2015-08-05 2015-12-16 国家电网公司 High-voltage cable terminal leading-out structure
CN110190576A (en) * 2019-06-14 2019-08-30 深圳供电局有限公司 The stern tube sealing of cable terminal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104594695A (en) * 2014-12-27 2015-05-06 重庆市喜植机械设备有限公司 High-voltage electricity transmitting device
CN104594694A (en) * 2014-12-27 2015-05-06 重庆市喜植机械设备有限公司 Electric power high voltage transmission device
CN104612456A (en) * 2015-01-20 2015-05-13 徐勇 High voltage transmission device
CN104631899A (en) * 2015-01-20 2015-05-20 徐勇 High voltage transmission device
CN105158652A (en) * 2015-08-05 2015-12-16 国家电网公司 High-voltage cable terminal leading-out structure
CN105158652B (en) * 2015-08-05 2017-12-08 国家电网公司 A kind of hv cable termination deriving structure
CN110190576A (en) * 2019-06-14 2019-08-30 深圳供电局有限公司 The stern tube sealing of cable terminal

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