CN208970264U - A kind of power transformer enclosure structure and the transformer containing the structure - Google Patents
A kind of power transformer enclosure structure and the transformer containing the structure Download PDFInfo
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- CN208970264U CN208970264U CN201821754533.9U CN201821754533U CN208970264U CN 208970264 U CN208970264 U CN 208970264U CN 201821754533 U CN201821754533 U CN 201821754533U CN 208970264 U CN208970264 U CN 208970264U
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Abstract
The utility model discloses a kind of power transformer enclosure structure and contain the transformer of the structure.The holder structure that increases includes the connection part for increasing seat, casing, current transformer and casing and body lead and being attached, increasing seat includes increasing seat shell body, increasing seat shell body includes that top increases seat and lower part raising seat, casing oil middle part partial volume is placed in top and increases in seat, and current transformer is placed in lower part and increases in seat.Compared with prior art, the casing of the utility model and top increase seat and form the fixed structure of height, convenient for standardization of casing production and type selecting, it only needs to adjust the height that lower part increases seat according to the quantity of the current transformer of installation and outer dimension, it is just able to satisfy different electric insulation demands, has many advantages, such as that structure is simple, versatile and easy to operate.
Description
Technical field
The utility model belongs to transformer technology field, and in particular to a kind of power transformer enclosure structure and contains the transformation
The transformer of device raising holder structure.
Background technique
Traditional transformer increases seat and is made of raising seat shell body and flange, places mutual inductor therebetween.With electric system electricity
The continuous raising of grade is pressed, more stringent requirements are proposed to power transformer enclosure structure.
Currently, large-scale power transformer product casing mostly uses raising holder structure when installing, by adjusting the knot for increasing seat
Structure and parameter meet casing inside and outside insulation distance and install the requirement of built-in current transformer.
It is existing it is conventional increase holder structure and be installed on current transformer increase seat top, when current transformer quantity compared with
When more or outer dimension is larger, the mode of seat can only be increased by adjusting partial-length in casing oil and increasing meet it is electrical absolutely
Edge required distance.This structure has the disadvantage that the height for not only needing to adjust and increasing seat, it is also necessary to adjust casing oil middle part
Divide length, changes sleeve parameters, cause casing type more, versatility is poor, is not easy to construction standard, inconvenient for operation.
Utility model content
Purpose of the utility model is to solve deficiencies of the prior art, provide it is a kind of versatile, and
Easy to operate power transformer enclosure structure and the transformer containing the structure.
The utility model discloses a kind of power transformer enclosure structure, including increase seat, casing, current transformer and
The connection part that casing and body lead are attached, the raising seat include increasing seat shell body, and the raising seat shell body includes
Top increases seat and lower part increases seat, and described sleeve pipe oil middle part partial volume is placed in top and increases in seat, the current transformer accommodating
It is increased in seat in lower part.
Preferably, the height that the top increases seat is more than or equal to the length of part in casing oil.
Selected, the height that the top increases seat is 400mm~500mm.
Preferably, the quantity of the current transformer is multiple, and the height that the lower part increases seat is more than or equal to multiple institutes
State the height of current transformer superposition.
Preferably, the connection part includes soft strength piece and transition cable, part and soft strength piece in described sleeve pipe oil
Connection, the other end of soft strength piece connect with transition cable, transition cable set on current transformer middle part, transition cable it is another
End connects with body lead.
Preferably, the top increases seat and is equipped with wiring hand hole, partially and soft in the position of wiring hand hole and casing oil
The position that plate is attached is corresponding.
Preferably, the lower part increases seat and is equipped with terminal box, and the terminal box is connect with current transformer, the electric current
The output end of mutual inductor is drawn from the terminal box.
The invention also discloses a kind of transformers, including transformer body, also include above-described transformer liter
High holder structure, the power transformer enclosure structure are connected on the case lid of transformer body.
Preferably, the voltage range of the transformer is 20~35KV.
The utility model power transformer enclosure structure is divided into upper and lower two parts for seat shell body is increased, by by Current Mutual Inductance
Device adjustment installation to lower part increases in seat, increases top and only accommodates part in casing oil in seat, can thus use standard
The casing of change, the length without adjusting part in casing oil, i.e., the size of part does not need to do any variation in casing oil,
And since the height that top increases seat can be determined according to the length of part in casing oil, by using standardized set
Pipe can make top increase seat and form the fixed structure of height, it is only necessary to according to the quantity of the current transformer of installation and
Outer dimension come determine lower part increase seat height, make adjustment increase seat height degree operation become simple and effective.As it can be seen that due to set
The length of part does not need to do any variation in pipe oil, so that entirely increasing quantity or size that seat adapts to current transformer
Structural adjustment when variation, to meet different electric insulation demands.
Compared with prior art, the utility model power transformer enclosure structure, which has following technical effect that, works as Current Mutual Inductance
It only needs to adjust the height that lower part increases seat when the quantity and outer dimension of device change, is just able to satisfy different electric insulations
Demand, structure is simple, easy to operate；Sleeve parameters are had no need to change, versatility is stronger, is convenient for casing manufacturer and transformation
Industry standardization degree improves to standardization of casing production and type selecting in device manufactory, and saves the casing of transformer manufacturing factory
Buying expenses.
The utility model power transformer enclosure structure is especially suitable in the power transformer product of 20~35KV.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of power transformer enclosure in the utility model specific embodiment 1.
In Fig. 1: 1- casing；Part in 2- casing oil；The top 3- increases seat；4- wiring hand hole；5- soft strength piece；6- electric current
Mutual inductor；The lower part 7- increases seat；8- transition cable；9- terminal box；10- body lead.
Specific embodiment
It is practical new below in conjunction with this in order to make those skilled in the art better understand the technical solution of the utility model
The drawings and specific embodiments of type make further clear, complete description to utility model.
Many kinds of, the poor problem of versatility for complementary sleeves existing for existing raising holder structure, this is practical new
Type provides a kind of power transformer enclosure structure comprising increase seat, casing, current transformer and casing and body lead into
The connection part of row connection, the raising seat include increasing seat shell body, and the raising seat shell body includes that top increases seat and lower part
Seat is increased, described sleeve pipe oil middle part partial volume is placed in top and increases in seat, and the current transformer is placed in lower part and increases in seat.
Correspondingly, the utility model also provides a kind of transformer, including transformer body, it further include above-mentioned transformer liter
High holder structure, the power transformer enclosure structure are connected on the case lid of transformer body.
Embodiment 1
As shown in Figure 1, the power transformer enclosure structure in the present embodiment, including increase seat, casing 1, current transformer 6,
And the connection part that casing 1 and body lead 10 are attached.The raising seat includes increasing seat shell body, the raising seat shell
Body includes that top increases seat 3 and lower part raising seat 7, and part 2 is placed in top and increases in seat 3 in casing oil, and current transformer 6 holds
Lower part is placed in increase in seat 7.
Specifically, the lower end that top increases seat 3 is connected with the upper end that lower part increases seat 7, is fixed, is constituted with bolt
Increase seat shell body.
Preferably, the bottom periphery that top increases seat 3 is equipped with ring flange, and the top peripheral that lower part increases seat 7 is equipped with flange
Fixation is bolted in disk between the two.
Further, casing 1 and top increase seat 3 and connect, and part 2 extend into the inside that top increases seat 3 in casing oil,
The height that top increases seat 3 is greater than the length of part 2 in (being also possible to be equal to) casing oil, and general height is 400~500mm,
It can satisfy the casing for being suitable for all producers used in current industry, be also convenient for casing manufacturer or transformer system in this way
Factory's standardization of casing production and type selecting are made, industry standardization degree is improved.
The connection part that casing and body lead are attached includes soft strength piece 5 and transition cable 8.Increasing seat shell body
Inside, the terminal plate of part 2 is connect with soft strength piece 5 in casing oil, and the other end of soft strength piece 5 is connect with transition cable 8, mistake
It crosses cable 8 to draw among current transformer 6, the other end of transition cable 8 connects with body lead 10, i.e. transition cable 8
Both ends are attached with soft strength piece 5 and body lead 10 respectively, general using welding in order to guarantee the stability of connection.
Wherein the length of transition cable 8 is adjusted according to the height of power transformer enclosure by design size.
Top increases seat 3 and is equipped with wiring hand hole 4, part 2 and soft strength piece 5 in the position of wiring hand hole 4 and casing oil
The position being attached is corresponding, in order to which the terminal plate and soft strength piece 5 of part 2 in casing oil are attached, wiring hand hole 4
It is externally provided with cover board, is sealed for butted line hand hole 4.
Further, the inside that lower part increases seat 7 is mounted with current transformer 6, and assembles consolidation with fixing piece.This implementation
Example for lower part increase seat height and current transformer quantity and geomery without limitation, used current transformer
Quantity can be 1, can also be the combination of multiple current transformers.It should be noted that lower part increase seat 7 height according to
The number and shape size of current transformer can be adjusted, it is ensured that it is mutual that the height that lower part increases seat 7 is more than or equal to multiple electric currents
The total height of sensor superposition.
Lower part increases seat 7 and is equipped with terminal box 9, and terminal box 9 and current transformer 6 pass through cable connection, current transformer
Signal cable drawn from terminal box 9.
Power transformer enclosure structure mounting steps in the present embodiment are as follows:
1. current transformer 6 is mounted on lower part to increase in seat, and consolidation is assembled with fixing piece, current transformer 6 and connect
The signal of the cable connection of wire box 9, current transformer 6 is drawn by cable by terminal box.
2. casing 1 and top are increased the connection of seat 3 and fixed, part 2 extend into top from above and increases seat 3 in casing oil
It is interior.
3. one end of soft strength piece 5 and transition cable 8 is welded, transition cable 8 draws from the middle part of current transformer 6
Out, it and is fixed temporarily, the length of transition cable is determined according to design size, the other end and body lead 10 of transition cable 8
Connection.
4. lower part raising seat 7 is fixed on transformer body case lid, top is increased into seat 3 and lower part increases seat 7
Connection, blending bolt are fixed.
5. part 2 in the oil of the soft strength piece 5 on 8 top of transition cable and casing 1 is attached admittedly by wiring hand hole 4
It is fixed, then wiring hand hole 4 is sealed with cover board.
The structure of transformer elevated structure in the present embodiment is simple, easy to operate, can be only by adjusting lower part raising
The height of seat and the length of transition cable, can be achieved with structure when changing to the number and shape size of current transformer
Adjustment, without being just able to satisfy different electric insulation demands, being convenient for cannula series to any variation is partially done in casing oil
Change standardized production and type selecting, and due to not needing adjustment sleeve parameters, transformer manufacturing producer casing buying expenses can be saved.
Embodiment 2
The present embodiment provides the power transformer enclosure knots in a kind of transformer, including transformer body and embodiment 1
Structure, the power transformer enclosure structure are connected on the case lid of transformer body.
Further, the voltage range of the transformer is generally 20~35KV.
Transformer in the present embodiment, the height adjustment due to increasing holder structure only need to increase seat by changing lower part
The length of height and transition cable, haves no need to change the parameter of casing, therefore the transformer in the present embodiment can be applicable at present
The casing of all producers can purchase industry type selecting to casing in order to transformer manufacturing producer, save cost.
It is understood that the above descriptions are merely preferred embodiments of the present invention, however the utility model is simultaneously
It is not limited to this.For the ordinary skill in the art, in the situation of the spirit and essence that do not depart from the utility model
Under, various changes and modifications can be made therein, these modification and improvement are also considered as the protection scope of the utility model.
Claims (9)
1. a kind of power transformer enclosure structure, including increase seat, casing, current transformer and casing and the progress of body lead
The connection part of connection, the raising seat include increasing seat shell body, it is characterised in that: the raising seat shell body includes that top increases
Seat and lower part increase seat, and described sleeve pipe oil middle part partial volume is placed in top and increases in seat, and the current transformer is placed in lower part liter
In dais.
2. power transformer enclosure structure according to claim 1, it is characterised in that: the height that the top increases seat is greater than
Equal to the length of part in casing oil.
3. power transformer enclosure structure according to claim 1, it is characterised in that: the height that the top increases seat is
400~500mm.
4. power transformer enclosure structure according to claim 1, it is characterised in that: the quantity of the current transformer is more
A, the height that the lower part increases seat is greater than the height of multiple current transformer superpositions.
5. power transformer enclosure structure according to claim 1-4, it is characterised in that: the connection part includes
Soft strength piece and transition cable, described sleeve pipe oil in part connect with soft strength piece, the other end and transition cable of soft strength piece
Connection, transition cable are set in the middle part of current transformer, and the other end of transition cable connects with body lead.
6. power transformer enclosure structure according to claim 5, it is characterised in that: the top increases seat and is equipped with wiring
The position of hand hole, wiring hand hole is corresponding with the position that part in casing oil and soft strength piece are attached.
7. power transformer enclosure structure according to claim 4, it is characterised in that: the lower part increases seat and is equipped with wiring
The signal cable of box, the current transformer is drawn from the terminal box.
8. a kind of transformer, including transformer body, it is characterised in that: further include the described in any item transformations of claim 1-7
Device increases holder structure, and the power transformer enclosure structure is connected on the case lid of transformer body.
9. transformer according to claim 8, it is characterised in that: the voltage range of the transformer is 20~35KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754533.9U CN208970264U (en) | 2018-10-26 | 2018-10-26 | A kind of power transformer enclosure structure and the transformer containing the structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754533.9U CN208970264U (en) | 2018-10-26 | 2018-10-26 | A kind of power transformer enclosure structure and the transformer containing the structure |
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| Publication Number | Publication Date |
|---|---|
| CN208970264U true CN208970264U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821754533.9U Active CN208970264U (en) | 2018-10-26 | 2018-10-26 | A kind of power transformer enclosure structure and the transformer containing the structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640558A (en) * | 2020-06-09 | 2020-09-08 | 山东泰开箱变有限公司 | Sleeve CT for small-capacity transformer 10KV side pure porcelain cable-through sleeve |
| CN111999613A (en) * | 2020-08-17 | 2020-11-27 | 国家电网有限公司 | Device and system for simulating arc discharge in oil by using transformer and test method thereof |
| CN113096925A (en) * | 2021-03-31 | 2021-07-09 | 广东电网有限责任公司广州供电局 | Power transformer suitable for guide rod type sleeve |
-
2018
- 2018-10-26 CN CN201821754533.9U patent/CN208970264U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640558A (en) * | 2020-06-09 | 2020-09-08 | 山东泰开箱变有限公司 | Sleeve CT for small-capacity transformer 10KV side pure porcelain cable-through sleeve |
| CN111999613A (en) * | 2020-08-17 | 2020-11-27 | 国家电网有限公司 | Device and system for simulating arc discharge in oil by using transformer and test method thereof |
| CN113096925A (en) * | 2021-03-31 | 2021-07-09 | 广东电网有限责任公司广州供电局 | Power transformer suitable for guide rod type sleeve |
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