CN114141486A - Natural ester insulating oil transformer oil tank - Google Patents

Natural ester insulating oil transformer oil tank Download PDF

Info

Publication number
CN114141486A
CN114141486A CN202111406027.7A CN202111406027A CN114141486A CN 114141486 A CN114141486 A CN 114141486A CN 202111406027 A CN202111406027 A CN 202111406027A CN 114141486 A CN114141486 A CN 114141486A
Authority
CN
China
Prior art keywords
tank structure
oil tank
oil
transformer
side wall
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.)
Granted
Application number
CN202111406027.7A
Other languages
Chinese (zh)
Other versions
CN114141486B (en
Inventor
刘东升
杜振斌
李新建
刘新颜
常鑫
张国运
刘瑞涛
冯媛媛
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.)
Baoding Tianwei Baobian Electric Co Ltd
Baoding Tianwei Group Tebian Electric Co Ltd
Original Assignee
Baoding Tianwei Baobian Electric Co Ltd
Baoding Tianwei Group Tebian 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 Baoding Tianwei Baobian Electric Co Ltd, Baoding Tianwei Group Tebian Electric Co Ltd filed Critical Baoding Tianwei Baobian Electric Co Ltd
Priority to CN202111406027.7A priority Critical patent/CN114141486B/en
Publication of CN114141486A publication Critical patent/CN114141486A/en
Application granted granted Critical
Publication of CN114141486B publication Critical patent/CN114141486B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/12Oil cooling
    • H01F27/14Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling

Abstract

The invention provides a transformer oil tank of natural ester insulating oil, which comprises a first oil tank structure, a first oil tank structure and a shock absorption assembly. The first oil tank structure is provided with a first containing groove; setting the length direction of the first oil tank structure as a first direction, and setting the horizontal direction vertical to the first direction as a second direction; the second oil tank structure is provided with a second containing groove, the second oil tank structure is positioned at the lower end of the first oil tank structure, and the second containing groove and the first containing groove enclose to form an accommodating cavity for accommodating the transformer; the length of the second oil tank structure along the first direction is smaller than that of the first oil tank structure, and the length of the second oil tank structure along the second direction is smaller than that of the first oil tank structure; the shock absorbing structure is used for absorbing the vibration of a combined body formed by the first oil tank structure and the second oil tank structure. The invention provides a transformer oil tank of natural ester insulating oil, and aims to solve the technical problems of low joint degree and weak damping function of an oil tank structure of a transformer and internal components of the transformer.

Description

Natural ester insulating oil transformer oil tank
Technical Field
The invention belongs to the technical field of transformer manufacturing, and particularly relates to a natural ester insulating oil transformer oil tank.
Background
With the rapid development of national economy in China, the requirement on power supply quality is higher and higher. The natural ester insulating oil is applied to the oil-immersed power transformer instead of mineral insulating oil, can obviously improve the environmental protection and fire prevention safety of the transformer, can prolong the insulating life of the transformer and improve the load capacity of the transformer, represents the development direction of advanced environment-friendly transformers, and meets the requirements of green power grids and ecological civilization construction in China.
In the prior art, the oil tank structure of the transformer is low in laminating degree with the internal components of the transformer, large in size, heavy in weight, material-wasting and weak in damping function.
Disclosure of Invention
The embodiment of the invention provides a transformer oil tank of natural ester insulating oil, and aims to solve the technical problems of low adhesion degree and weak damping function of an oil tank structure of a transformer and internal components of the transformer.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a natural ester insulating oil transformer tank, including:
the first oil tank structure is provided with a first containing groove; setting the length direction of the first oil tank structure as a first direction, and setting the horizontal direction perpendicular to the first direction as a second direction;
the second oil tank structure is provided with a second containing groove, the second oil tank structure is positioned at the lower end of the first oil tank structure, and after the second oil tank structure is detachably connected with the first oil tank structure, the second containing groove and the first containing groove are enclosed to form an accommodating cavity for accommodating a transformer; the length of the second tank structure in the first direction is smaller than that of the first tank structure, and the length of the second tank structure in the second direction is smaller than that of the first tank structure; and
and the shock absorption structure is arranged on the first oil tank structure and is used for absorbing the vibration effect of a combined body formed by the first oil tank structure and the second oil tank structure.
In one possible implementation, the cross section of the first tank structure in the horizontal direction is an octagon; the first upper side wall surface is parallel to the second upper side wall surface and is arranged along the first direction;
the bottom of first oil tank structure be equipped with the first connection terminal surface of second oil tank structure detachable connection.
In one possible implementation, the cross section of the second tank structure along the horizontal direction is hexagonal; the first lower side wall surface is parallel to the second lower side wall surface, and the second lower side wall surface is parallel to the first lower side wall surface and is arranged along the first direction; the length of the first lower side wall surface along the first direction is less than the length of the first upper side wall surface;
the top of the second oil tank structure is provided with a second connecting end face detachably connected with the first oil tank structure.
In a possible implementation manner, along the second direction, the length of one of the second lower side walls is greater than that of the other second lower side wall;
along the first direction, the spacing distance between the two second lower side walls is smaller than the spacing distance between the two second upper side walls.
In one possible implementation manner, the first oil tank structure is provided with a plurality of pipe joints for connecting radiators, which are uniformly arranged at intervals, and the plurality of pipe joints for connecting the radiators are arranged along a first direction.
In a possible implementation manner, the first oil tank structure further includes a low-pressure bushing raising seat and a high-pressure bushing raising seat, the low-pressure bushing raising seat is used for raising a low-pressure bushing, and the high-pressure bushing raising seat is used for raising a high-pressure bushing.
In a possible implementation manner, a plurality of damping grooves are arranged on the first upper side wall surface at uniform intervals.
In one possible implementation, the suspension structure includes:
the ring sleeve is fixedly sleeved on the outer side wall of the first oil tank structure and is provided with a sealing cavity; and
the sealing cavity is filled with sand grains, and the sand grains jump in the sealing cavity to offset the vibration effect of the first oil tank structure, the second oil tank structure and the ring sleeve which are combined to form a whole.
The natural ester insulating oil transformer oil tank provided by the invention has the beneficial effects that: compared with the prior art, through setting up first oil tank structure, first oil tank structure is equipped with first splendid attire groove. Set up second oil tank structure, second oil tank structure is equipped with the second splendid attire groove, and the second oil tank structure can dismantle with first oil tank structure and be connected the back, and the second splendid attire groove encloses with first splendid attire groove and closes formation holding chamber, and the holding chamber is used for supplying the transformer to place. The length of second oil tank structure is less than the length of first oil tank structure, and corresponding material to the second oil tank can be guaranteed to this kind of structure and is practiced thrift, reduces holistic weight, the transportation of being convenient for, and the second splendid attire groove that corresponds moreover also can be corresponding reduces, reduces the use amount of natural ester insulating oil, can guarantee moreover with the laminating degree of transformer. The shock-proof structure arranged on the first oil tank structure can absorb the vibration generated in the working process of the assembly formed by the first oil tank structure and the second oil tank structure, so that the noise reduction and shock resistance of the transformer are improved.
Drawings
Fig. 1 is a schematic structural diagram of a transformer tank for natural ester insulating oil according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a transformer tank for natural ester insulating oil according to an embodiment of the present invention;
fig. 3 is a third schematic structural diagram of a transformer tank using natural ester insulating oil according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a ring sleeve of a natural ester insulating oil transformer tank according to an embodiment of the present invention.
Description of reference numerals: 10. a first tank structure; 11. a first upper side wall surface; 12. a high-voltage bushing raising seat; 13. a low-pressure bushing raising seat; 14. a pipe joint for connecting the radiator; 15. a first connection end face; 16. a second upper side wall surface; 17. a damping groove; 20. a second tank structure; 21. a first lower sidewall surface; 22. a second lower side wall surface; 23. a second connection end face; 30. a shock absorbing structure; 31. a loop is provided.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4 together, the oil tank of the natural ester insulating oil transformer according to the present invention will now be described. The transformer tank comprises a first tank structure 10, a second tank structure 20 and a shock absorption structure 30.
The first tank structure 10 is provided with a first receiving trough. The longitudinal direction of the first tank structure 10 is set to a first direction, and the horizontal direction perpendicular to the first direction is set to a second direction.
The second tank structure 20 is provided with a second receiving trough. Second oil tank structure 20 is located the lower extreme of first oil tank structure 10, and second oil tank structure 20 can dismantle with first oil tank structure 10 and be connected the back, and second splendid attire groove encloses with first splendid attire groove and closes formation holding chamber, and the holding chamber is used for supplying the transformer to place. The length of the second tank structure 20 in the first direction is smaller than the length of the first tank structure 10, and the length of the second tank structure 20 in the second direction is smaller than the length of the first tank structure 10.
The shock absorbing structure 30 is disposed on the first tank structure 10 and is used for absorbing vibration generated by a combination of the first tank structure 10 and the second tank structure 20 during operation of the transformer.
Compared with the prior art, the natural ester insulating oil transformer oil tank provided by the embodiment of the invention is provided with the first oil tank structure, and the first oil tank structure is provided with the first containing groove. Set up second oil tank structure, second oil tank structure is equipped with the second splendid attire groove, and the second oil tank structure can dismantle with first oil tank structure and be connected the back, and the second splendid attire groove encloses with first splendid attire groove and closes formation holding chamber, and the holding chamber is used for supplying the transformer to place. The length of second oil tank structure is less than the length of first oil tank structure, and corresponding material to the second oil tank can be guaranteed to this kind of structure and is practiced thrift, reduces holistic weight, the transportation of being convenient for, and the second splendid attire groove that corresponds moreover also can be corresponding reduces, reduces the use amount of natural ester insulating oil, can guarantee moreover with the laminating degree of transformer. The shock-proof structure arranged on the first oil tank structure can absorb the vibration generated in the working process of the assembly formed by the first oil tank structure and the second oil tank structure, so that the noise reduction and shock resistance of the transformer are improved.
In some embodiments, referring to fig. 1 to 3, the cross section of the first tank structure 10 along the horizontal direction is octagonal. The first upper wall 11 has two first upper walls 11, and the two first upper walls 11 are parallel and arranged along a first direction. And two second upper side wall surfaces 16, the two second upper side wall surfaces 16 being parallel and arranged along the second direction.
The bottom of the first tank structure 10 is provided with a first connecting end surface 15 detachably connected with the second tank structure 20.
In this embodiment, the first tank structure 10 is provided with two first upper side wall surfaces 11 arranged in parallel, and the two first upper side wall surfaces 11 are arranged along the first direction. The first tank structure 10 is further provided with two second upper side wall surfaces 16 arranged in parallel, the two second upper side wall surfaces 16 being arranged along the second direction. The cross section of the first oil tank structure 10 along the horizontal direction is octagonal, and the first oil tank structure 10 is matched with each component of the transformer in a fitting manner, so that the space is saved, the cost is saved, and the transportation and the maintenance are facilitated.
In some embodiments, referring to fig. 1 to 3, the cross section of the second tank structure 20 along the horizontal direction is hexagonal. The first and second side walls 21 and 22 are parallel to each other and arranged in the first direction and the second direction, respectively. The length of the first lower wall surface 21 along the first direction is smaller than the length of the first upper wall surface 11.
The second tank structure 20 is provided at the top with a second connection end surface 23 detachably connected to the first tank structure 10.
In this embodiment, the second tank structure 20 is provided with two first lower sidewall surfaces 21 arranged in parallel, and the two first lower sidewall surfaces 21 are arranged along the first direction. The second tank structure 20 is further provided with two second lower side wall surfaces 22 arranged in parallel, the two second lower side wall surfaces 22 being arranged along the second direction. Second tank structure 20 is the hexagon along horizontal direction's cross section, and second tank structure 20 and each component laminating adaptation of transformer practice thrift the space, save the cost, are convenient for transportation and maintenance.
In some embodiments, the first connecting end surface 15 and the second connecting end surface 23 are detachably connected by some kind of locking member.
In some embodiments, referring to fig. 1 to 3, along the second direction, the length of one of the second lower sidewalls 22 is greater than the length of the other second lower sidewall 22. The distance of separation of the two second lower side wall surfaces 22 is smaller than the distance of separation of the two second upper side wall surfaces 16 along the first direction.
In this embodiment, along the first direction, the distance between the two second lower side wall surfaces 22 is smaller than the distance between the two second upper side wall surfaces 16, so that the width of the second containing groove along the first direction is smaller than the width of the first containing groove along the first direction, along the second direction, the length of one of the second lower side wall surfaces 22 is greater than the length of the other second lower side wall surface 22, and the cross section of the second oil tank structure 20 along the horizontal direction is hexagonal, thereby reducing the overall weight of the device, reducing the usage amount of the natural ester insulating oil, and saving the cost.
In some embodiments, referring to fig. 1 to 3, a plurality of radiator connecting pipe joints 14 are provided on the first tank structure 10, and the radiator connecting pipe joints 14 are uniformly spaced along the first direction. In this embodiment, the plurality of pipe joints 14 for connecting the radiators are arranged at regular intervals in the first direction, so that the heat dissipation speed of the transformer is increased, and the heat dissipation efficiency of the transformer is improved.
In some embodiments, referring to fig. 1, the first tank structure 10 further includes a low-pressure bushing elevated seat 13 and a high-pressure bushing elevated seat 12. The low-voltage bushing raising seat 13 is used to raise the low-voltage bushing, and the high-voltage bushing raising seat 12 is used to raise the high-voltage bushing. In this embodiment, the low-voltage bushing raising seat 13 and the high-voltage bushing raising seat 12 are disposed on the first oil tank structure 10, so that the low-voltage bushing is raised by the low-voltage bushing raising seat 13, and the high-voltage bushing is raised by the high-voltage bushing raising seat 12, thereby reducing the overall height of the oil tank, saving the natural ester insulating oil, and saving the cost.
In some embodiments, referring to fig. 1 to 3, the first upper side wall 11 is provided with a plurality of damping grooves 17 uniformly spaced apart from each other. Optionally, the damping groove 17 is filled with sand which jumps in the damping groove 17 to counteract vibration generated by the combination of the first tank structure 10 and the second tank structure 20 during the operation of the transformer, and the noise can be reduced, and the practicability is high.
In some embodiments, referring to fig. 1 and 4, the shock absorbing structure 30 includes a ring 31 and sand. The collar 31 is fixed to the outer side wall of the first tank structure 10, and the collar 31 has a seal cavity. Sand fills the sealed chamber and jumps within the sealed chamber to counteract the overall vibratory effect of the combination of the first tank structure 10, the second tank structure 20 and the collar 31. Alternatively, the collar 31 has a first vertical surface and a second vertical surface abutting against the second upper side wall surface. The first elevation and the second elevation enclose a loop 31. The collar 31 is adapted to the shape of the first tank structure 10. The sand grains are dry and clean sand grains without corrosive substances. In this embodiment, the ring sleeve 31 has a sealed cavity for containing sand to prevent sand leakage, and the sand jumps in the sealed cavity to offset the overall vibration effect formed by the combination of the first tank structure 10, the second tank structure 20 and the ring sleeve 31, and reduce noise, thereby improving the noise reduction and shock resistance of the transformer.
In some embodiments, referring to fig. 1 to 3, the height of the first containing groove in the vertical direction is greater than the height of the second containing groove in the vertical direction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A natural ester insulating oil transformer tank, comprising:
the first oil tank structure is provided with a first containing groove; setting the length direction of the first oil tank structure as a first direction, and setting the horizontal direction perpendicular to the first direction as a second direction;
the second oil tank structure is provided with a second containing groove, the second oil tank structure is positioned at the lower end of the first oil tank structure, and after the second oil tank structure is detachably connected with the first oil tank structure, the second containing groove and the first containing groove are enclosed to form an accommodating cavity for accommodating a transformer; the length of the second tank structure in the first direction is smaller than that of the first tank structure, and the length of the second tank structure in the second direction is smaller than that of the first tank structure; and
and the shock absorption structure is arranged on the first oil tank structure and is used for absorbing the vibration effect of a combined body formed by the first oil tank structure and the second oil tank structure.
2. The natural ester insulating oil transformer tank of claim 1, wherein a cross-section of the first tank structure in a horizontal direction is octagonal; the first upper side wall surface is parallel to the second upper side wall surface and is arranged along the first direction;
the bottom of first oil tank structure be equipped with the first connection terminal surface of second oil tank structure detachable connection.
3. The natural ester insulating oil transformer tank of claim 2, wherein the second tank structure has a hexagonal cross-section in a horizontal direction; the first lower side wall surface is parallel to the second lower side wall surface, and the second lower side wall surface is parallel to the first lower side wall surface and is arranged along the first direction; the length of the first lower side wall surface along the first direction is less than the length of the first upper side wall surface;
the top of the second oil tank structure is provided with a second connecting end face detachably connected with the first oil tank structure.
4. The natural ester insulating oil transformer tank of claim 3, wherein along the second direction, a length of one of the second lower sidewalls is greater than a length of the other of the second lower sidewalls;
along the first direction, the spacing distance between the two second lower side walls is smaller than the spacing distance between the two second upper side walls.
5. The natural ester insulating oil transformer tank of claim 2, wherein said first tank structure is provided with a plurality of radiator connecting fittings disposed at regular intervals, and a plurality of said radiator connecting fittings are arranged in a first direction.
6. The natural ester insulated oil transformer tank of claim 5, wherein the first tank structure further comprises a low-voltage bushing elevation seat for elevating a low-voltage bushing and a high-voltage bushing elevation seat for elevating a high-voltage bushing.
7. The tank of a transformer for natural ester insulating oil as defined in claim 2, wherein said first upper wall surface is provided with a plurality of shock-absorbing grooves at regular intervals.
8. The natural ester insulating oil transformer tank of claim 1, wherein the shock absorbing structure comprises:
the ring sleeve is fixedly sleeved on the outer side wall of the first oil tank structure and is provided with a sealing cavity; and
the sealing cavity is filled with sand grains, and the sand grains jump in the sealing cavity to offset the vibration effect of the first oil tank structure, the second oil tank structure and the ring sleeve which are combined to form a whole.
CN202111406027.7A 2021-11-24 2021-11-24 Natural ester insulating oil transformer tank Active CN114141486B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111406027.7A CN114141486B (en) 2021-11-24 2021-11-24 Natural ester insulating oil transformer tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111406027.7A CN114141486B (en) 2021-11-24 2021-11-24 Natural ester insulating oil transformer tank

Publications (2)

Publication Number Publication Date
CN114141486A true CN114141486A (en) 2022-03-04
CN114141486B CN114141486B (en) 2024-01-05

Family

ID=80391369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111406027.7A Active CN114141486B (en) 2021-11-24 2021-11-24 Natural ester insulating oil transformer tank

Country Status (1)

Country Link
CN (1) CN114141486B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114660429A (en) * 2022-05-19 2022-06-24 保定天威保变电气股份有限公司 Device and method for testing insulation strength between transformer coil sections

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007049011A (en) * 2005-08-11 2007-02-22 Daihen Corp Low-noise static induction electric appliance
JP2010114268A (en) * 2008-11-06 2010-05-20 Mitsubishi Electric Corp Life assessment device and oil-immersed transformer
CN201562558U (en) * 2009-11-03 2010-08-25 保定天威集团有限公司 Device for lowering noise of transformers
CN201741525U (en) * 2010-04-01 2011-02-09 杭州钱江电气集团股份有限公司 Positioning device for transformer
WO2013000193A1 (en) * 2011-06-30 2013-01-03 特变电工沈阳变压器集团有限公司 Single-phase ultra-large capacity strong current short-circuit test transformer
CN204010927U (en) * 2014-07-31 2014-12-10 重庆市亚东亚集团变压器有限公司 Oil tank for oil immersion type transformer
CN204375538U (en) * 2015-02-11 2015-06-03 新疆特变电工集团有限公司衡阳电气分公司 Three-dimensional reel iron core transformer fuel tank
WO2016147158A1 (en) * 2015-03-18 2016-09-22 Efacec Energia - Máquinas E Equipamentos Eléctricos S.A. Oil immersed power transformer tank wall
CN106571210A (en) * 2015-10-09 2017-04-19 特变电工沈阳变压器集团有限公司 110kV transformer
CN207517485U (en) * 2017-09-27 2018-06-19 武汉泽电新材料有限公司 A kind of natural esters insulating oil distribution transformer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007049011A (en) * 2005-08-11 2007-02-22 Daihen Corp Low-noise static induction electric appliance
JP2010114268A (en) * 2008-11-06 2010-05-20 Mitsubishi Electric Corp Life assessment device and oil-immersed transformer
CN201562558U (en) * 2009-11-03 2010-08-25 保定天威集团有限公司 Device for lowering noise of transformers
CN201741525U (en) * 2010-04-01 2011-02-09 杭州钱江电气集团股份有限公司 Positioning device for transformer
WO2013000193A1 (en) * 2011-06-30 2013-01-03 特变电工沈阳变压器集团有限公司 Single-phase ultra-large capacity strong current short-circuit test transformer
CN204010927U (en) * 2014-07-31 2014-12-10 重庆市亚东亚集团变压器有限公司 Oil tank for oil immersion type transformer
CN204375538U (en) * 2015-02-11 2015-06-03 新疆特变电工集团有限公司衡阳电气分公司 Three-dimensional reel iron core transformer fuel tank
WO2016147158A1 (en) * 2015-03-18 2016-09-22 Efacec Energia - Máquinas E Equipamentos Eléctricos S.A. Oil immersed power transformer tank wall
CN106571210A (en) * 2015-10-09 2017-04-19 特变电工沈阳变压器集团有限公司 110kV transformer
CN207517485U (en) * 2017-09-27 2018-06-19 武汉泽电新材料有限公司 A kind of natural esters insulating oil distribution transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114660429A (en) * 2022-05-19 2022-06-24 保定天威保变电气股份有限公司 Device and method for testing insulation strength between transformer coil sections

Also Published As

Publication number Publication date
CN114141486B (en) 2024-01-05

Similar Documents

Publication Publication Date Title
CN114141486A (en) Natural ester insulating oil transformer oil tank
CN203733571U (en) Protruding tank wall type oil-saving transformer oil tank
CN202936793U (en) Water cooling drum-type diesel pile hammer
CN206961915U (en) A kind of electrokinetic cell aluminum hull of good damping effect
CN109538373A (en) A kind of cylinder cover enclosure sealing structure
CN101763936A (en) Metal bellow expansion oil storage tank
CN201616319U (en) Metal corrugated expansion oil storage cabinet
CN202268255U (en) Anti-explosive capacitor shell
CN202142384U (en) Omni-sealed transformer corrugated tank device
CN208722959U (en) A kind of power battery box that security performance is high
CN111998026A (en) Vibration isolation device with rubber spring structure
CN207265135U (en) A kind of superbattery module suitable for energy-accumulating power station
CN202749194U (en) Totally closed corrugated oil tank
CN108305747B (en) Transformer under a kind of enclosed water
CN205984556U (en) Reduce device of high -capacity power transformer noise
CN212570652U (en) Oil tank of oil-immersed distribution transformer
CN210838600U (en) Comprehensive distribution box
CN205211541U (en) Transformer oil tank
CN215644017U (en) Oil-immersed transformer barrel type oil tank's piece scatters and hangs body mounting structure
CN202405059U (en) Amorphous alloy flameproof dry type transformer
CN202473511U (en) Novel corrugated oil tank
CN103105064A (en) Sintering machine head and tail horizontal sealing device
CN201417659Y (en) Oil storage cabinet of internal oil type composite transformer
CN216407522U (en) Stabilize effectual bearing cap of installation of being convenient for
CN204190321U (en) A kind of high efficiency and heat radiation bus duct

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant