CN103057836B - A kind of transport fixed support of voltage transformer outgoing line device - Google Patents

A kind of transport fixed support of voltage transformer outgoing line device Download PDF

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Publication number
CN103057836B
CN103057836B CN201110326966.0A CN201110326966A CN103057836B CN 103057836 B CN103057836 B CN 103057836B CN 201110326966 A CN201110326966 A CN 201110326966A CN 103057836 B CN103057836 B CN 103057836B
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China
Prior art keywords
outgoing line
line device
horizontal
support member
support
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CN103057836A (en
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谢伟
代斌
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TBEA Hengyang Transformer Co. Ltd
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TBEA Hengyang Transformer Co. Ltd
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Abstract

The invention provides a kind of transport fixed support of voltage transformer outgoing line device, the horizontal support member (1) comprising framework and be arranged on framework and vertical support member (2), described voltage transformer outgoing line device comprises the outgoing line device (7) of L shape, the horizontal ends that described outgoing line device (7) comprises horizontal positioned and the upright end of vertically placing, described horizontal support member (1) is for supporting the horizontal ends of outgoing line device, and described vertical support member (2) is for supporting the upright end of outgoing line device.

Description

A kind of transport fixed support of voltage transformer outgoing line device
Technical field
The invention belongs to technical field of transformer manufacturing, be specifically related to a kind of transport fixed support of voltage transformer outgoing line device, more specifically, relate to a kind of transport fixed support of outgoing line device of large-scale and oversize transformer.
Background technology
In recent years, along with the fast development of China's power industry, the market demand that is large-scale and oversize transformer constantly increases.Transformer high-voltage wire outlet device is a kind of insulator arrangement for transformer high-voltage wire outlet end, and its effect improves the Electric Field Distribution around transformer high-voltage wire outlet end, and reduce the requirement of insulation distance, this device and voltage transformer support the use.Transformer high-voltage wire outlet device generally comprises the outgoing line device of L shape and two of being connected respectively by bolt with flange with outgoing line device two ends raise seat, namely first raises seat and second and raises seat.Wherein second raise seat for being connected with transformer bushing, first raises seat is used for fixing outgoing line device in transportation.The corner angle of outgoing line device is between 90-120 °, and two length raising seat at its two ends are all more than 0.9 meter.Because high-voltage terminal device size that is large-scale and oversize transformer is larger, therefore for large-scale and oversize transformer, also be faced with the problem that high-voltage terminal device is difficult to transport, way was in the past fallen by transformer high-voltage wire outlet device, by welding or bundle fixing rear transport, but due to the voltage transformer that type is different, the corner angle of its high-voltage terminal device is also different, be not easy to mutual colligation, and this laying method extremely takes up space, relatively increase transport difficulty and traffic cost.
Summary of the invention
Technical matters to be solved by this invention is for above shortcomings in prior art, a kind of transport fixed support of voltage transformer outgoing line device is provided, its structure is simple, be convenient to vertical for transformer high-voltage wire outlet device colligation is fixing after transport again, effectively can save transport space.
Solving technical scheme that the technology of the present invention problem adopts is that the transport fixed support of this voltage transformer outgoing line device comprises framework and the horizontal support member that is arranged on framework and vertical support member, described voltage transformer outgoing line device comprises the outgoing line device of L shape, the horizontal ends that described outgoing line device comprises horizontal positioned and the upright end of vertically placing, described horizontal support member is for supporting the horizontal ends of outgoing line device, and described vertical support member is for supporting the upright end of outgoing line device.
Wherein, also include the first rising seat and second and raise seat in described voltage transformer outgoing line device, described first raises seat and second raises the horizontal ends of seat and outgoing line device and upright end is connected respectively, and described horizontal support member also can be used for supporting described first rising seat.
Transport fixed support by adopting the present invention and whole voltage transformer outgoing line device can be erect placement, thus greatly save transport space.When onsite application, raise seat again by first remove, then remaining part is winched to installation site, and be connected with transformer body by the outgoing line device of L shape, second raises seat is connected with transformer bushing, thus completes the installation of voltage transformer outgoing line device.Such transportation mode placed of erectting also is convenient to in-site installation voltage transformer outgoing line device.
Preferably, described framework comprises two upper beams, two underbeams and four root posts, four root posts are vertically symmetrical arranged between two, and upper beam and underbeam are arranged in the horizontal direction, and two upper beams and two underbeams are symmetricly set on the upper/lower terminal of four root posts respectively; Described horizontal support member is erected on two underbeams, and described vertical support member is erected on two upper beams.The length of wherein said underbeam is not less than the length of outgoing line device.
Wherein, described outgoing line device is between four root posts, and the axis of the horizontal ends of outgoing line device is parallel with the length direction of underbeam, and described horizontal support member adopts two or more, and described two or more horizontal support member be arranged in parallel along the length direction of underbeam.The quantity of preferred described horizontal support member is two.
Preferably, described horizontal support member comprises horizontal shore and is located at the horizontal support holder on horizontal shore, the two ends of described horizontal shore are erected on two underbeams respectively, horizontal support holder contacts with the horizontal ends of outgoing line device, and the shape of the contact surface that horizontal support holder contacts with the horizontal ends of outgoing line device is the shape suitable with the outer wall of the horizontal ends of outgoing line device.The shape of the contact surface that preferred levels supporting bracket contacts with the horizontal ends of outgoing line device is circular arc, when outgoing line device is positioned in horizontal support member, makes outgoing line device steadily place because contact surface is harmonious.
Further preferably, horizontal support seat is also included in described horizontal support member, described horizontal support seat adopts two, described two horizontal support seats are symmetricly set on the below at the two ends of described horizontal shore respectively with support level support beam, two horizontal support seats are removably separately fixed on two underbeams, thus make horizontal support member position on underbeam length direction adjustable.
Preferably, described vertical support member comprises vertical support axle, be located at the vertical support bar on vertical support axle, and the vertical support holder be located in vertical support bar, described outgoing line device is between four root posts, described vertical support axle to be erected at rotationally on two upper beams and to be in the side outward-dipping with the upright end of outgoing line device, described vertical support holder contacts with the outward-dipping side of the upright end of outgoing line device, the shape of the contact surface that vertical support holder contacts with the upright end of outgoing line device is the shape suitable with the outer wall of the upright end of outgoing line device.The contact surface that preferred vertical supporting bracket contacts with the upright end of outgoing line device is circular arc.Because vertical support member is located between two upper beams, and can rotate around vertical support axle, for holding out against the upright end of outgoing line device.Because vertical support axle can rotate, when the outgoing line device that placement angle of inclination is different, the outgoing line device that vertical support member is different with each all can contact well.Vertical support member quantity is preferably 1.
Preferably, described vertical support member is removably erected on two upper beams.
Preferably, vertical support member correspondence is arranged at the top of the upright end of outgoing line device, and the horizontal ends height 0.2-1 rice of its aspect ratio outgoing line device.
Preferably, also include the support for limiting outgoing line device swing in this transport fixed support, described support adopts two that are oppositely arranged, and two supports are separately positioned in two gaps between upper beam and outgoing line device.Support connects upper beam and outgoing line device simultaneously, plays fixation.Outgoing line device is positioned in framework, is also not enough to fixing outgoing line device by means of only horizontal support member and vertical support member, easily loosely cause danger because of fixing in transportation.And support is set between upper beam and outgoing line device, outgoing line device can be securely fixed on framework.
Preferably, the position of described support on upper beam is adjustable.Support can on upper beam sway so that the outgoing line device of fixing differing tilt angles.
Further preferably, described support for welding or open several holes on support, can be connected with upper beam and outgoing line device by bolt with the connection mode of upper beam and outgoing line device.
Preferably, also include the baffle plate for preventing outgoing line device tip forwards in this transport fixed support, described baffle plate is erected on two upper beams, and baffle plate is located at side relative with vertical support member on upper beam.
Preferably, the material of described framework and horizontal support member, vertical support member, support adopts metal sheet or timber.
When using this transport fixed support, first according to the size of the horizontal ends of outgoing line device, horizontal support member is transferred to appropriate location, and baffle plate is pulled down, voltage transformer outgoing line device is hung on this transport fixed support, by regulating the angle of vertical support member, after the vertical end of outgoing line device and vertical support member are held out against, again the horizontal ends of outgoing line device is positioned in horizontal support member, regulate the position of support on upper beam again, and by modes such as bolts, support is connected respectively with the horizontal ends of upper beam and outgoing line device, thus outgoing line device and framework entirety are fixed as one, finally load onto baffle plate.Like this, whole voltage transformer outgoing line device can be made to be fixed together with transport fixed support vertically, and when being convenient to transport, the colligation of this voltage transformer outgoing line device is fixed, thus actv. has saved transport space.
The invention has the beneficial effects as follows: this transport fixed support not only structure is simple, be easy to processing, and commonality is good, is suitable for various angle of inclination, the voltage transformer outgoing line device of different length size uses when transporting.
Accompanying drawing explanation
Fig. 1 transports support bracket fastened structural representation in the embodiment of the present invention 1;
Fig. 2 is voltage transformer outgoing line device and the support bracket fastened mounting structure schematic diagram of transport in the embodiment of the present invention 1;
Fig. 3 is the A direction view of Fig. 2;
Fig. 4 transports support bracket fastened birds-eye view in the embodiment of the present invention 1;
Fig. 5 a is the structural front view of horizontal support member in the embodiment of the present invention 1;
Fig. 5 b is the lateral plan of Fig. 5 a;
Fig. 5 c is the birds-eye view of Fig. 5 a;
Fig. 6 a is the structural front view of vertical support member in the embodiment of the present invention 1;
Fig. 6 b is the lateral plan of Fig. 6 a;
Fig. 6 c is the birds-eye view of Fig. 6 a;
Fig. 7 a is the structural front view of the embodiment of the present invention 1 medium-height trestle;
Fig. 7 b is the lateral plan of Fig. 7 a;
Fig. 7 c is the birds-eye view of Fig. 7 a.
In figure: 1-horizontal support member; 2-vertical support member; 3-support; 4-upper beam; 5-underbeam; 6-baffle plate; 7-outgoing line device; 8-vertical support axle; 9-column; The holder of 11-horizontal support; 12-horizontal shore; 13-horizontal support seat; The holder of 21-vertical support; 22-vertical support bar; 31-base plate; 32-reinforced rib; 33-fixed connecting plate; 34-brace panel; 71-first raises seat; 72-second raises seat.
Detailed description of the invention
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
The transport fixed support of voltage transformer outgoing line device of the present invention comprises framework and the horizontal support member 1 that is arranged on framework and vertical support member 2, described voltage transformer outgoing line device comprises the outgoing line device 7 of L shape, the horizontal ends that described outgoing line device 7 comprises horizontal positioned and the upright end of vertically placing, described horizontal support member 1 is for supporting the horizontal ends of outgoing line device, and described vertical support member 2 is for supporting the upright end of outgoing line device.
Wherein, also include the first rising seat 71 and second in described voltage transformer outgoing line device and raise seat 72, described first raises seat 71 and second raises the horizontal ends of seat 72 and outgoing line device 7 and upright end is connected respectively, and described horizontal support member 1 is also for supporting described first rising seat 71.
Embodiment 1:
As shown in Figure 2, in the present embodiment, the outgoing line device 7, first that described voltage transformer outgoing line device comprises L shape raises seat 71 and the second rising seat 72.The horizontal ends that described outgoing line device 7 comprises horizontal positioned and the upright end of vertically placing, first raises seat 71 is connected with the horizontal ends of outgoing line device, and second raises seat 72 is connected with the upright end of outgoing line device.
In the present embodiment, the length of the upright end of this outgoing line device is 1.4 meters, and the length of the horizontal ends of outgoing line device is 1.1 meters, and the angle between the upright end of outgoing line device and horizontal ends is 95 °.First length raising seat 71 is 1.1 meters, and its diameter is 1 meter, and the second length raising seat 72 is 2.6 meters, and its diameter is 1 meter.
Outgoing line device is between four root posts 9.As Figure 1-4, described transport fixed support comprises framework and the horizontal support member 1 that is arranged on framework and vertical support member 2, described horizontal support member 1 raises seat 71 for the horizontal ends and first supporting outgoing line device, and described vertical support member 2 is for supporting the upright end of outgoing line device.Described framework can be fixed in transportation means with steel rope colligation, by the framework stationary transformer outgoing line device of upper end closed, voltage transformer outgoing line device can be made vertically to be positioned in framework, and not run-off the straight or collapse in transportation.
Described framework comprises two upper beams, 4, two underbeams 5 and four root posts 9, four root posts 9 are vertically symmetrical arranged between two, upper beam 4 and underbeam 5 are arranged in the horizontal direction, and two upper beams 4 and two underbeams 5 are symmetricly set on the upper/lower terminal of four root posts 9 respectively; Described horizontal support member 1 is erected on two underbeams 5, and described vertical support member 2 is arranged on two upper beams 4.
Wherein, the length of underbeam 5 is not less than the total length of voltage transformer outgoing line device.
In the present embodiment, the length of upper beam 4 is 1.7 meters, the length of underbeam 5 is 3.6 meters, the height of column 9 is 1.5 meters, and voltage transformer outgoing line device is vertically positioned in framework.
Wherein, described outgoing line device 7 is between four root posts 9, and the axis of the horizontal ends of outgoing line device is parallel with the length direction of underbeam 5, and in the present embodiment, horizontal support member 1 adopts two, and described two horizontal support member 1 be arranged in parallel along the length direction of underbeam 5.
Horizontal support member 1 raises seat 71 for firmly supporting outgoing line device 7 and first.As shown in Fig. 5 a, 5b, 5c, horizontal support member 1 comprises horizontal shore 12, be located at horizontal support holder 11 on horizontal shore 12 and horizontal support seat 13.The two ends of described horizontal shore 12 are erected on two underbeams 5, horizontal support holder 11 and outgoing line device 7 or first raise the wall contacts of seat 71, wherein horizontal support holder 11 is circular arc with outgoing line device 7 or the first shape raising the contact surface that seat 71 contacts, to raise the outer wall of seat 71 suitable with outgoing line device 7 or first.The horizontal ends of outgoing line device is positioned in horizontal support member 1, steadily places because contact surface matches.Described horizontal support seat 13 adopts two, and two horizontal support seats 13 are symmetricly set on the below at the both ends of horizontal shore 12 respectively, and horizontal support seat 13 is removably fixed on underbeam 5.In the present embodiment, horizontal support seat 13 is bolted on underbeam 5, and multiple bolt hole passed through for bolt is being symmetrically arranged with along the length direction of two underbeams 5, by bolt, horizontal support seat 13 is fixed in the different bolt hole of underbeam 5, thus makes horizontal support member 1 position on the length direction of underbeam 5 adjustable.
In the present embodiment, horizontal support member 11 adopts that to have thickness be that the steel plate of 10mm is made, and its total length is 800mm.
Vertical support member 2 is for supporting the upright end of outgoing line device.As shown in Fig. 6 a, 6b and 6c, the vertical support holder 21 that vertical support member 2 comprises vertical support axle 8, is located at the vertical support bar 22 on vertical support axle 8 and is located in vertical support bar 22.Described vertical support axle 8 is erected on two upper beams 4 rotationally and the side outward-dipping with the upright end of outgoing line device is corresponding, described vertical support holder 21 contacts with the outer wall of the outward-dipping side of the upright end of outgoing line device, the contact surface that vertical support holder 21 contacts with the upright end of outgoing line device is circular arc, suitable with the outer wall of the upright end with outgoing line device.Because vertical support member 2 can rotate on upper beam 4, therefore when the outgoing line device 7 that placement angle of inclination is different, vertical support member 2 all can contact with it well.Vertical support member 2 is removably erected on two upper beams 4, thus makes vertical support member 2 position on upper beam 5 adjustable.
Vertical support member 2 is arranged on upper beam 4 corresponding with the top of outgoing line device 7 upright end, and the height of the horizontal ends of its aspect ratio outgoing line device wants high 0.2-1 rice.
In the present embodiment, vertical support member 2 adopts one.Vertical support member 2 adopts thickness to be that the steel plate of 10mm is made, and its total length is 800mm.
Also include the support 3 for limiting outgoing line device 7 and the second rising seat 72 swing in this transport fixed support, in the present embodiment, support 3 adopts two, and two supports 3 are separately positioned in the gap between two upper beams 4 and outgoing line device 7.Support 3 is for connecting upper beam 4 and outgoing line device 7 simultaneously, play fixation, thus voltage transformer outgoing line device can be securely fixed in framework, because be also not enough to be completely fixed voltage transformer outgoing line device by means of only horizontal support member 1 and vertical support member 2, easily occur dangerous in transportation.Support 3 is set between upper beam 4 and outgoing line device 7, voltage transformer outgoing line device firmly can be fixed in framework.
As shown in Fig. 7 a, 7b and 7c, support 3 comprises base plate 31, reinforced rib 32, fixed connecting plate 33 and brace panel 34.Wherein, base plate 31 and upper beam 4 are bolted, and fixed connecting plate 33 is bolted with the suspension ring hole on outgoing line device 7.Wherein, upper beam 4 is provided with multiple bolt hole passed for bolt along its length, by bolt base plate 31 is fixed in the different bolt hole on upper beam 4, thus make support 3 can on upper beam 4 sway so that the voltage transformer outgoing line device of fixing differing tilt angles.
In the present embodiment, support 3 adopts thickness to be that the Plate Welding of 16mm forms, and which is provided with the hole be connected with outgoing line device 7 and the hole be connected with upper beam 4.
Also include the baffle plate 6 for preventing outgoing line device 7 tip forwards in this transport fixed support, described baffle plate 6 is erected on two upper beams 4, and baffle plate 6 is located at side relative with vertical support member 2 on upper beam 4.
In the present embodiment, the material of framework and horizontal support member 1, vertical support member 2, support 3 all adopts steel plate.
When using this transport fixed support stationary transformer outgoing line device, first according to the horizontal ends of outgoing line device and the size of the first rising seat 71, the horizontal support member 1 on framework is adjusted to appropriate location, the horizontal ends and first making two horizontal support member 1 aim at outgoing line device respectively raises 1/3 and 2/3 place of the total length of seat 71, and is pulled down by baffle plate 6, then by the handling of voltage transformer outgoing line device in the support bracket fastened framework of this transport, and the angle of inclination that makes it with the upright end of outgoing line device of vertical support member 2 being turned an angle is consistent, the upright end of outgoing line device and vertical support member 2 are held out against, and the horizontal ends of outgoing line device is positioned in horizontal support member 1, regulate the position of support 3 on upper beam 4 again, it is made to aim at the suspension ring hole on outgoing line device 7, by bolt, outgoing line device 7 is connected with support 3, and by bolt, support 3 is connected with upper beam 4, thus voltage transformer outgoing line device and framework entirety are fixed as one, finally baffle plate 6 is installed on upper beam 4.Like this, just make whole voltage transformer outgoing line device vertically be fixed together with this transport fixed support, when being convenient to transport, the colligation of voltage transformer outgoing line device is fixed, and has effectively saved transport space.
By the above detailed description to the embodiment of the present invention, the present invention can be understood transport fixed support voltage transformer outgoing line device fixed vertical can be made to place, because this transport fixed support is a general frame structure, the horizontal support member of the horizontal ends being applicable to fixing outgoing line device is provided with bottom it, vertical direction is provided with the vertical support member that can rotate to an angle, therefore the voltage transformer outgoing line device at various angle of inclination vertically can be put into it, to avoid when transporting voltage transformer outgoing line device being fallen the situation of transport, and structure is simple, easily processing, commonality are better.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.

Claims (10)

1. the transport fixed support of a voltage transformer outgoing line device, the horizontal support member (1) that it is characterized in that comprising framework and be arranged on framework and vertical support member (2), described voltage transformer outgoing line device comprises the outgoing line device (7) of L shape, the horizontal ends that described outgoing line device (7) comprises horizontal positioned and the upright end of vertically placing, described horizontal support member (1) is for supporting the horizontal ends of outgoing line device, and described vertical support member (2) is for supporting the upright end of outgoing line device.
2. transport fixed support according to claim 1, it is characterized in that also including the first rising seat (71) and second in described voltage transformer outgoing line device raises seat (72), described first raises seat (71) and second raises seat (72) and is connected respectively with the horizontal ends of outgoing line device (7) and upright end, and described horizontal support member (1) is also for supporting described first rising seat (71).
3. transport fixed support according to claim 1, it is characterized in that described framework comprises two upper beams (4), two underbeams (5) and four root posts (9), four root posts (9) are vertically symmetrical arranged between two, upper beam (4) and underbeam (5) are arranged in the horizontal direction, and two upper beams (4) and two underbeams (5) are symmetricly set on the upper/lower terminal of four root posts (9) respectively; Described horizontal support member (1) is erected on two underbeams (5), and described vertical support member (2) is erected on two upper beams (4).
4. transport fixed support according to claim 3, it is characterized in that described outgoing line device is between four root posts (9), the axis of the horizontal ends of outgoing line device is parallel with the length direction of underbeam (5), described horizontal support member (1) adopts two or more, and described two or more horizontal support member (1) be arranged in parallel along the length direction of underbeam.
5. transport fixed support according to claim 4, it is characterized in that described horizontal support member (1) comprises horizontal shore (12) and is located at the horizontal support holder (11) on horizontal shore (12), the two ends of described horizontal shore (12) are erected on two underbeams (5) respectively, horizontal support holder (11) contacts with the horizontal ends of outgoing line device, and the shape of the contact surface that horizontal support holder (11) contacts with the horizontal ends of outgoing line device is the shape suitable with the outer wall of the horizontal ends of outgoing line device.
6. transport fixed support according to claim 5, it is characterized in that in described horizontal support member, also including horizontal support seat (13), described horizontal support seat (13) adopts two, described two horizontal support seats (13) are symmetricly set on the below at the two ends of described horizontal shore (12) respectively with support level support beam (12), and two horizontal support seats (13) are removably separately fixed on two underbeams (5).
7. transport fixed support according to claim 3, it is characterized in that described vertical support member (2) comprises vertical support axle (8), be located at the vertical support bar (22) on vertical support axle (8), and the vertical support holder (21) be located in vertical support bar (22), described outgoing line device is between four root posts (9), described vertical support axle (2) is erected at two upper beams (4) rotationally and goes up and be in the side outward-dipping with the upright end of outgoing line device, described vertical support holder (21) contacts with the outward-dipping side of the upright end of outgoing line device, the shape of the contact surface that vertical support holder (21) contacts with the upright end of outgoing line device is the shape suitable with the outer wall of the upright end of outgoing line device.
8., according to the transport fixed support one of claim 2-7 Suo Shu, it is characterized in that vertical support member (2) correspondence is arranged at the top of the upright end of outgoing line device, and the horizontal ends height 0.2-1 rice of its aspect ratio outgoing line device.
9. according to the transport fixed support one of claim 3-7 Suo Shu, it is characterized in that the support (3) also included in this transport fixed support for limiting outgoing line device (7) swing, described support (3) adopts two that are oppositely arranged, and two supports (3) are separately positioned in the gap between two upper beams (4) and outgoing line device (7).
10. according to the transport fixed support one of claim 3-7 Suo Shu, it is characterized in that the baffle plate (6) also included in this transport fixed support for preventing outgoing line device (7) tip forwards, described baffle plate (6) is erected on two upper beams (4), and baffle plate (6) is located at the upper side relative with vertical support member (2) of upper beam (4).
CN201110326966.0A 2011-10-21 2011-10-21 A kind of transport fixed support of voltage transformer outgoing line device Active CN103057836B (en)

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CN103325550B (en) * 2013-06-28 2015-08-19 国家电网公司 A kind of Transformer Bushing Tap introduction pipe fixing means, structure and fixed support
CN105845332B (en) * 2016-04-28 2017-10-27 绵阳启明星电力设备有限公司 The fixing means of oil-filled transformer wire fixture and its lead
CN106568564A (en) * 2016-10-26 2017-04-19 中国电力科学研究院 Vibration test clamp for voltage transformer outgoing line device
DE102017203591A1 (en) * 2017-03-06 2018-09-06 Siemens Aktiengesellschaft Support assembly and transformer with support assembly
CN112447361B (en) * 2019-08-30 2024-05-10 特变电工沈阳变压器集团有限公司 Valve lifting seat support of converter transformer
CN111243839B (en) * 2019-11-27 2021-09-14 山东电力设备有限公司 Splitting kit and splitting method for lifting seat of converter transformer
CN112614675B (en) * 2020-11-11 2022-10-28 山东电力设备有限公司 Transformer valve sleeve insulating support and installation guide structure assembly and assembly method

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CN101694807A (en) * 2009-08-27 2010-04-14 中国西电电气股份有限公司 High voltage outgoing line device of extra-high voltage transformer

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