CN204407234U - The isolating switch of 110kV transformer neutral point complete set of equipments - Google Patents

The isolating switch of 110kV transformer neutral point complete set of equipments Download PDF

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Publication number
CN204407234U
CN204407234U CN201420853920.3U CN201420853920U CN204407234U CN 204407234 U CN204407234 U CN 204407234U CN 201420853920 U CN201420853920 U CN 201420853920U CN 204407234 U CN204407234 U CN 204407234U
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CN
China
Prior art keywords
insulator
swing arm
isolating switch
neutral point
ground connection
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.)
Expired - Fee Related
Application number
CN201420853920.3U
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Chinese (zh)
Inventor
杨文波
李雪飞
汪黎明
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.)
ZHEJIANG SUNRISE ELECTRIC Co Ltd
Original Assignee
ZHEJIANG SUNRISE ELECTRIC 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 ZHEJIANG SUNRISE ELECTRIC Co Ltd filed Critical ZHEJIANG SUNRISE ELECTRIC Co Ltd
Priority to CN201420853920.3U priority Critical patent/CN204407234U/en
Application granted granted Critical
Publication of CN204407234U publication Critical patent/CN204407234U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of isolating switch of 110kV transformer neutral point complete set of equipments.It solve the problems such as existing isolating switch stability.Comprise base, base is provided with the first insulator vertically arranged, first insulator upper end is connected with the second insulator by bearing bracket, second insulator upper end is connected with stainless steel cover plate by upper pedestal, copper bar is provided with in stainless steel cover plate side, opposite side is provided with the earthing be inclined to set, earthing extends with downward axis and the upper end of the ground connection fingertip paralleled with the second insulator is connected, the lower end of ground connection fingertip is fixedly installed on bearing bracket, the lower end of ground connection fingertip is connected with screw rod, screw rod is provided with the swing arm be parallel to each other with the first insulator, swing arm end is provided with universal insulated tension pole by articulated structure.Advantage is: structure is simple, and heating effect is good, and each position is heated evenly, and heat loss is few, and heat transference efficiency is high.

Description

The isolating switch of 110kV transformer neutral point complete set of equipments
Technical field
The utility model belongs to power supply unit technical field, especially relates to a kind of isolating switch of 110kV transformer neutral point complete set of equipments.
Background technology
110kV is the mains voltage grade of electric power system; its neutral point generally adopts direct grounding way; due to relay protection setting configuration and the requirement preventing the aspects such as communication interference, simultaneously in order to limit single-phase short circuit current, some transformers is wherein had to adopt isolated neutral mode.Under this operational mode, due to thunderbolt, single-phase grounding faults etc. can cause neutral point overvoltage, and transformer is graded insulation mostly, therefore the insulation of overvoltage centering point causes very large threat, protective device Accident prevention must be arranged to it to occur, therefore the neutral point complete set of protective apparatus for 110kV transformer is a kind of important electric equipment, isolating switch in existing 110kV transformer neutral point complete set of equipments is owing to cruelly leaking in outdoor for a long time, long-term inoperation, service conditions is poor, there is intensity low, poor stability, useful life is short, the problems such as poor stability.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of transformer neutral point duplex earthing isolator [application number: 201410273730.9], comprise insulator, base, connecting rod, wherein: the two ends of described insulator are provided with base, described base comprises upper bed-plate and lower bottom base, described upper bed-plate is provided with snap device, described connecting rod is connected with snap device and lower bottom base, described connecting rod and lower bottom base are articulated and connected by nut, described connecting rod is two, be arranged on insulator both sides, and it is parallel to each other, couple axle is provided with between described connecting rod, described couple axle and connecting rod are articulated and connected by nut, described couple axle is provided with action bars, described action bars and couple axle are articulated and connected.
Such scheme to some extent solves the problem of existing isolating switch poor stability, but the program still also exists: poor stability, and intensity is low, the problem that useful life is short.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of simple and reasonable, the isolating switch of the 110kV transformer neutral point complete set of equipments of good stability.
For achieving the above object, the utility model have employed following technical proposal: the isolating switch of this 110kV transformer neutral point complete set of equipments, comprise base, it is characterized in that, described base is provided with the first insulator vertically arranged, the first described insulator upper end is connected with the second insulator axially arranged along the first insulator by bearing bracket, the second described insulator upper end is connected with stainless steel cover plate by upper pedestal, copper bar is provided with in stainless steel cover plate side, opposite side is provided with the earthing be inclined to set, described earthing extends with downward axis and the upper end of the ground connection fingertip paralleled with the second insulator is connected, the lower end of described ground connection fingertip is fixedly installed on bearing bracket, the lower end of described ground connection fingertip is connected with the screw rod be parallel to each other with bearing bracket by loose joint mounting structure, described screw rod is provided with the swing arm be parallel to each other with the first insulator, described swing arm end is provided with universal insulated tension pole by articulated structure.In this structure, be connected by all parts with upper pedestal by the base that is parallel to each other, bearing bracket, make this isolating switch good stability, intensity is high.
In the isolating switch of above-mentioned 110kV transformer neutral point complete set of equipments, described loose joint mounting structure comprises and being connected and L-shaped swing arm frame with bearing bracket, described swing arm frame end portion is hinged is provided with swing arm, described swing arm and mount pad are hinged and connected, and described screw rod is connected with mount pad screw thread.
In the isolating switch of above-mentioned 110kV transformer neutral point complete set of equipments, described articulated structure comprises and is arranged on universal insulated tension pole end and the installing rack taken the shape of the letter U, and described installing rack is fastened on swing arm end and described installing rack is connected with swing arm by bolt.
In the isolating switch of above-mentioned 110kV transformer neutral point complete set of equipments, described upper pedestal is provided with the first aluminium cover that earthing can be covered.
In the isolating switch of above-mentioned 110kV transformer neutral point complete set of equipments, the length scale of the first described insulator is less than the length scale of the second insulator.
In the isolating switch of above-mentioned 110kV transformer neutral point complete set of equipments, described ground connection fingertip is provided with can by the second aluminium cover of ground connection fingertip circumference parcel.
Compared with prior art, the advantage of the isolating switch of this 110kV transformer neutral point complete set of equipments is: structure is simple, and good stability, intensity is high, and each position is connected firmly, long service life.
Accompanying drawing explanation
The structural representation that Fig. 1 provides for the utility model.
The structural representation at another visual angle that Fig. 2 provides for the utility model.
In figure, base 1, first insulator 2, bearing bracket 3, second insulator 4, upper pedestal 5, stainless steel cover plate 51, copper bar 52, earthing 53, first aluminium cover 531, ground connection fingertip 6, second aluminium cover 61, loose joint mounting structure 7, screw rod 71, swing arm 72, swing arm frame 73, swing arm 74, mount pad 75, articulated structure 8, installing rack 81, bolt 82, universal insulated tension pole 9.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1-2, the isolating switch of this 110kV transformer neutral point complete set of equipments, comprise base 1, base 1 is provided with the first insulator 2 vertically arranged, first insulator 2 upper end is connected with the second insulator 4 axially arranged along the first insulator 2 by bearing bracket 3, second insulator 4 upper end is connected with stainless steel cover plate 51 by upper pedestal 5, copper bar 52 is provided with in stainless steel cover plate 51 side, opposite side is provided with the earthing 53 be inclined to set, earthing 53 extends with downward axis and the upper end of the ground connection fingertip 6 paralleled with the second insulator 4 is connected, the lower end of ground connection fingertip 6 is fixedly installed on bearing bracket 3, the lower end of ground connection fingertip 6 is connected with the screw rod 71 be parallel to each other with bearing bracket 3 by loose joint mounting structure 7, screw rod 71 is provided with the swing arm 72 be parallel to each other with the first insulator 2, swing arm 72 end is provided with universal insulated tension pole 9 by articulated structure 8, by the base 1 be parallel to each other, all parts is connected with upper pedestal 5 by bearing bracket 3, make this isolating switch good stability, intensity is high.
Particularly, loose joint mounting structure 7 in the present embodiment comprises and being connected and L-shaped swing arm frame 73 with bearing bracket 3, swing arm frame 73 end is hinged is provided with swing arm 74, and swing arm 74 and mount pad 75 are hinged and connected, and described screw rod 71 is connected with mount pad 75 screw thread.Further, articulated structure 8 here comprises and is arranged on universal insulated tension pole 9 end and the installing rack 81 taken the shape of the letter U, and described installing rack 81 is fastened on swing arm 72 end and described installing rack 81 is connected with swing arm 72 by bolt 82.
Preferably, the upper pedestal 5 in the present embodiment is provided with the first aluminium cover 531 that earthing 53 can be covered.Further, the length scale of the first insulator 2 is here less than the length scale of the second insulator 4.In addition, ground connection fingertip 6 is provided with and the second aluminium of ground connection fingertip 6 circumference parcel can be overlapped 61.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as base 1, first insulator 2, bearing bracket 3, second insulator 4, upper pedestal 5, stainless steel cover plate 51, copper bar 52, earthing 53, first aluminium cover 531, ground connection fingertip 6, second aluminium cover 61, loose joint mounting structure 7, screw rod 71, swing arm 72, swing arm frame 73, swing arm 74, mount pad 75, articulated structure 8, installing rack 81, bolt 82, universal insulated tension pole 9 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.

Claims (6)

1. the isolating switch of a 110kV transformer neutral point complete set of equipments, comprise base (1), it is characterized in that, described base (1) is provided with the first insulator (2) vertically arranged, described the first insulator (2) upper end is connected with the second insulator (4) axially arranged along the first insulator (2) by bearing bracket (3), described the second insulator (4) upper end is connected with stainless steel cover plate (51) by upper pedestal (5), copper bar (52) is provided with in stainless steel cover plate (51) side, opposite side is provided with the earthing (53) be inclined to set, described earthing (53) extends with downward axis and the upper end of the ground connection fingertip (6) paralleled with the second insulator (4) is connected, the lower end of described ground connection fingertip (6) is fixedly installed on bearing bracket (3), the lower end of described ground connection fingertip (6) is connected with by loose joint mounting structure (7) screw rod (71) be parallel to each other with bearing bracket (3), described screw rod (71) is provided with the swing arm (72) be parallel to each other with the first insulator (2), described swing arm (72) end is provided with universal insulated tension pole (9) by articulated structure (8).
2. the isolating switch of 110kV transformer neutral point complete set of equipments according to claim 1, it is characterized in that, described loose joint mounting structure (7) comprises and being connected and L-shaped swing arm frame (73) with bearing bracket (3), described swing arm frame (73) end is hinged is provided with swing arm (74), described swing arm (74) and mount pad (75) are hinged and connected, and described screw rod (71) is connected with mount pad (75) screw thread.
3. the isolating switch of 110kV transformer neutral point complete set of equipments according to claim 2, it is characterized in that, described articulated structure (8) comprises and is arranged on universal insulated tension pole (9) end and the installing rack taken the shape of the letter U (81), and described installing rack (81) is fastened on swing arm (72) end and described installing rack (81) is connected with swing arm (72) by bolt (82).
4. the isolating switch of the 110kV transformer neutral point complete set of equipments according to claim 1 or 2 or 3, is characterized in that, described upper pedestal (5) is provided with the first aluminium cover (531) that earthing (53) can be covered.
5. the isolating switch of 110kV transformer neutral point complete set of equipments according to claim 4, is characterized in that, the length scale of described the first insulator (2) is less than the length scale of the second insulator (4).
6. the isolating switch of 110kV transformer neutral point complete set of equipments according to claim 1, is characterized in that, described ground connection fingertip (6) is provided with can by the second aluminium cover (61) of ground connection fingertip (6) circumference parcel.
CN201420853920.3U 2014-12-29 2014-12-29 The isolating switch of 110kV transformer neutral point complete set of equipments Expired - Fee Related CN204407234U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420853920.3U CN204407234U (en) 2014-12-29 2014-12-29 The isolating switch of 110kV transformer neutral point complete set of equipments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420853920.3U CN204407234U (en) 2014-12-29 2014-12-29 The isolating switch of 110kV transformer neutral point complete set of equipments

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CN204407234U true CN204407234U (en) 2015-06-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108010789A (en) * 2017-12-13 2018-05-08 上海天灵开关厂有限公司 A kind of high current direct action type three-station with radiator structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108010789A (en) * 2017-12-13 2018-05-08 上海天灵开关厂有限公司 A kind of high current direct action type three-station with radiator structure

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150617

Termination date: 20191229