CN206921667U - A kind of double power network power transformers - Google Patents
A kind of double power network power transformers Download PDFInfo
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- CN206921667U CN206921667U CN201720900956.6U CN201720900956U CN206921667U CN 206921667 U CN206921667 U CN 206921667U CN 201720900956 U CN201720900956 U CN 201720900956U CN 206921667 U CN206921667 U CN 206921667U
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Abstract
It the utility model is related to a kind of double power network power transformers, with low pressure winding, high pressure winding, every phase high pressure winding of the transformer is split as high pressure winding H1, high pressure winding H2, the high pressure winding H1, the high pressure winding H2 number of turn are identical, the high pressure winding H1, high pressure winding H2 line gauge are identical, the high pressure winding H1, high pressure winding H2 carry out being connected in series to be converted at the scene being connected in parallel, or the high pressure winding H1, high pressure winding H2 carry out being connected in parallel to be converted at the scene being connected in series.High pressure winding H1, high pressure winding H2 are applicable a kind of power network when being connected in series, high pressure winding H1, high pressure winding H2 are applicable another power network when being connected in parallel.The utility model is applicable to two kinds of power networks.
Description
Technical field
It the utility model is related to power network electric power transformer technology field.
Background technology
The rated voltage of general high voltage transmission line of electricity is 110kV, 220kV, 330kV, 500kV etc., and power transformer is all
It is to determine the high pressure winding voltage class of transformer according to the needs of place transmission line of electricity, the voltage class of high pressure winding is nothing
What method changed, it can be only applied on the transmission line of electricity of specific voltage grade, suitable for a kind of voltage circuit.But due to social development
Make rapid progress, transmission line of electricity upgrading in region can be run into the lifetime of transformer or because transformer is called in special requirement
The actual conditions used to another voltage class transmission line of electricity, with adapt to low-carbon cycle, transformer play it is more efficient, therefore
Only a kind of power transformer of transformation function can not meet the needs of external electrical network change.
Utility model content
The technical problems to be solved in the utility model is：A kind of double power network power transformers are provided, are applicable to two kinds
Power network.
Technical scheme is used by the utility model solves its technical problem：A kind of double power network power transformers, tool
There are low pressure winding, high pressure winding, every phase high pressure winding of the transformer is split as high pressure winding H1, high pressure winding H2, institute
It is identical to state high pressure winding H1, the high pressure winding H2 number of turn, the high pressure winding H1, high pressure winding H2 line gauge are identical, the height
Pressure winding H1, high pressure winding H2 carry out being connected in series to be converted at the scene being connected in parallel, or, the high pressure winding H1, high pressure
Winding H2 carries out being connected in parallel to be converted at the scene being connected in series.
Further, the power transformer also includes tap-changing windings T and pressure regulation change-over switch, the high pressure winding H1,
High pressure winding H2 is in when being connected in series：Lift one's head E points and pressure regulator T change-over switch K points company for the upper end of the high pressure winding H2
Connect, the lower end of high pressure winding H2 F points of lifting one's head are lifted one's head with high pressure winding H1 lower end and are connected, the upper end of the high pressure winding H1
G points lift one's head as electrical network access point；
The high pressure winding H1, high pressure winding H2, which carry out being connected in series at the scene, to be converted to the mode being connected in parallel and is：It is disconnected
The upper end for opening the high pressure winding H2 is lifted one's head the connection of the pressure regulation change-over switch K points at E points and tap-changing windings T, the high voltage winding
Group H2 upper end E points and high pressure winding H1 upper end G points of lifting one's head of lifting one's head are connected, the lower end of the high pressure winding H2 lift one's head F points and
Pressure regulation change-over switch K points connection at tap-changing windings T, the lower end of high pressure winding H2 F points of lifting one's head are kept and high pressure winding H1
The connection lifted one's head of lower end, G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
Further, the power transformer also includes tap-changing windings T and pressure regulation change-over switch, the high pressure winding H1,
High pressure winding H2 is in when being connected in parallel：Lift one's head G points lift one's head E points and high pressure winding H1 upper end of the upper end of the high pressure winding H2
Connection, the lower end of high pressure winding H2 F points of lifting one's head are connected with pressure regulator T change-over switch K points, under the high pressure winding H2
Bring out a F point and lift one's head with high pressure winding H1 lower end and be connected, the upper end of high pressure winding H1 G points of lifting one's head access as power network
Point；
The high pressure winding H1, high pressure winding H2, which carry out being connected in parallel at the scene, to be converted to the mode being connected in series and is：It is disconnected
The lift one's head E points and high pressure winding H1 upper end of upper end for opening the high pressure winding H2 is lifted one's head the connections of G points, disconnects the high pressure winding
H2 lower end is lifted one's head the connections of the pressure regulation change-over switch K points at F points and tap-changing windings T, and lift one's head E for the upper end of the high pressure winding H2
Point is connected with the pressure regulation change-over switch K points at tap-changing windings T, and the lower end of the high pressure winding H2 is lifted one's head the holding of F points and high voltage winding
Group H1 lower end is lifted one's head connection, and G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
Further, the high pressure winding H1, high pressure winding H2 arranged concentrics.
Further, when external electrical network is 220KV power networks, the high pressure winding H1, high pressure winding H2 are in series connection and connected
Connect, external electrical network access high pressure winding H1 upper end is lifted one's head G points, and the power transformer is as 220KV transformers.
Further, when external electrical network is 110KV power networks, the high pressure winding H1, high pressure winding H2 are in parallel and connected
Connect, external electrical network access high pressure winding H1 upper end is lifted one's head G points, and the power transformer is as 110KV transformers.
The beneficial effects of the utility model are：High pressure winding H1, high pressure winding H2 be connected in series being converted at the scene
It is connected in parallel, or, high pressure winding H1, high pressure winding H2 carry out being connected in parallel to be converted at the scene being connected in series.High pressure winding
H1, high pressure winding H2 are applicable a kind of power network when being connected in series, another kind is applicable when high pressure winding H1, high pressure winding H2 are connected in parallel
Power network.The utility model is applicable to two kinds of power networks.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is that high pressure winding H1, high pressure winding H2 in the utility model are in the circuit theory diagrams being connected in series；
Fig. 2 is that high pressure winding H1, high pressure winding H2 in the utility model are in the circuit theory diagrams being connected in parallel；
Embodiment
The utility model is further described presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram only to show
Meaning mode illustrates basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
A kind of double power network power transformers, there is low pressure winding, high pressure winding, every phase high pressure winding of the transformer
High pressure winding H1, high pressure winding H2 are split as, the high pressure winding H1, the high pressure winding H2 number of turn are identical, the high voltage winding
Group H1, high pressure winding H2 line gauge are identical, and the high pressure winding H1, high pressure winding H2 be connected in series being converted to simultaneously at the scene
Connection connection, or, the high pressure winding H1, high pressure winding H2 carry out being connected in parallel to be converted at the scene being connected in series.The height
Press winding H1, high pressure winding H2 arranged concentrics.The high pressure winding H1, high pressure winding H2 are applicable a kind of power network when being connected in series,
The high pressure winding H1, high pressure winding H2 are applicable another power network when being connected in parallel.The utility model is applicable to two kinds of power networks.
As shown in figure 1, the power transformer also includes tap-changing windings T and pressure regulation change-over switch, the high pressure winding H1,
High pressure winding H2 is in when being connected in series：The upper end of the high pressure winding H2 lift one's head E points with tap-changing windings T pressure regulation conversion open
Close the connection of K points, the lower end of high pressure winding H2 F points of lifting one's head are lifted one's head with high pressure winding H1 lower end and are connected, the high pressure winding
G points lift one's head as electrical network access point in H1 upper end.
The high pressure winding H1, high pressure winding H2, which carry out being connected in series at the scene, to be converted to the mode being connected in parallel and is：It is disconnected
The upper end for opening the high pressure winding H2 is lifted one's head the connection of the pressure regulation change-over switch K points at E points and tap-changing windings T, the high voltage winding
Group H2 upper end E points and high pressure winding H1 upper end G points of lifting one's head of lifting one's head are connected, the lower end of the high pressure winding H2 lift one's head F points and
Pressure regulation change-over switch K points connection at tap-changing windings T, the lower end of high pressure winding H2 F points of lifting one's head are kept and high pressure winding H1
The connection lifted one's head of lower end, G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
As shown in Fig. 2 the power transformer also includes tap-changing windings T, the high pressure winding H1, high pressure winding H2 are in
When being connected in parallel：The upper end of high pressure winding H2 E points and high pressure winding H1 upper end G points of lifting one's head of lifting one's head are connected, the high pressure
Winding H2 lower end F points of lifting one's head are connected with the pressure regulation change-over switch K points at tap-changing windings T, are brought out under the high pressure winding H2
Head F points are lifted one's head with high pressure winding H1 lower end to be connected, and G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
The high pressure winding H1, high pressure winding H2, which carry out being connected in parallel at the scene, to be converted to the mode being connected in series and is：It is disconnected
The lift one's head E points and high pressure winding H1 upper end of upper end for opening the high pressure winding H2 is lifted one's head the connections of G points, disconnects the high pressure winding
H2 lower end is lifted one's head the connections of the pressure regulation change-over switch K points at F points and tap-changing windings T, and lift one's head E for the upper end of the high pressure winding H2
Point is connected with the pressure regulation change-over switch K points at tap-changing windings T, and the lower end of the high pressure winding H2 is lifted one's head the holding of F points and high voltage winding
Group H1 lower end is lifted one's head connection, and G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
When external electrical network is 220KV power networks, the high pressure winding H1, high pressure winding H2 are in and are connected in series, external electrical
Net access high pressure winding H1 upper end is lifted one's head G points, and the power transformer is as 220KV transformers.
When external electrical network is 110KV power networks, the high pressure winding H1, high pressure winding H2 are in and are connected in parallel, external electrical
Net access high pressure winding H1 upper end is lifted one's head G points, and the power transformer is as 110KV transformers.
The high pressure winding H1, high pressure winding H2 upper and lower side are lifted one's head and mechanically connected using cold-pressed joint, high by adjusting
The connected mode that winding H1, high pressure winding H2 upper and lower sides lift one's head is pressed to realize two high pressure winding H1, high pressure winding H2 connection in series-parallel
Conversion.Or the high pressure winding H1, high pressure winding H2 upper and lower side are lifted one's head using series parallel switch progress series-parallel conversion.
Series-parallel conversion carries out being connected in series to be converted at the scene being connected in parallel including the high pressure winding H1, high pressure winding H2, or,
The high pressure winding H1, high pressure winding H2 carry out being connected in parallel to be converted at the scene being connected in series.
L in Fig. 1, Fig. 2 is three-phase low-voltage winding and a, b, c are three of low pressure winding triangle junction lifts one's head；H1 and
H2 is respectively that high pressure winding H1, high pressure winding H2, T are pressure regulator T, and to be three of high pressure winding star connection lift one's head by A, B, C,
0 lifts one's head for the neutral point of high pressure winding star connection, and lifting one's head at tap-changing windings T 1~9 is pressure regulation tap.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (6)
1. a kind of double power network power transformers, there is low pressure winding, high pressure winding, it is characterised in that：The transformer it is every
Phase high pressure winding is split as high pressure winding H1, high pressure winding H2, and the high pressure winding H1, the high pressure winding H2 number of turn are identical,
The high pressure winding H1, high pressure winding H2 line gauge are identical, and the high pressure winding H1, high pressure winding H2 carry out series connection company at the scene
Switch through to be changed to and be connected in parallel, or, the high pressure winding H1, high pressure winding H2, which carry out being connected in parallel at the scene, is converted to series connection company
Connect.
A kind of 2. double power network power transformers according to claim 1, it is characterised in that：The power transformer also wraps
Tap-changing windings T, the high pressure winding H1, high pressure winding H2 are included in when being connected in series：Lift one's head E for the upper end of the high pressure winding H2
Point is connected with the pressure regulation change-over switch K points at tap-changing windings T, and lift one's head F points and high pressure winding H1 for the lower end of the high pressure winding H2
Lower end lift one's head connection, G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1；
The high pressure winding H1, high pressure winding H2, which carry out being connected in series at the scene, to be converted to the mode being connected in parallel and is：Disconnect institute
The upper end for stating high pressure winding H2 is lifted one's head the connection of the pressure regulation change-over switch K points at E points and tap-changing windings T, the high pressure winding H2
Upper end E points and high pressure winding H1 upper end G points of lifting one's head of lifting one's head be connected, the lower end of the high pressure winding H2 is lifted one's head F points and pressure regulation
Pressure regulation change-over switch K points connection at winding T, the lower end of the high pressure winding H2 are lifted one's head under the holding of F points and high pressure winding H1
The connection of head is brought out, G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
A kind of 3. double power network power transformers according to claim 1, it is characterised in that：The power transformer also wraps
Tap-changing windings T, the high pressure winding H1, high pressure winding H2 are included in when being connected in parallel：Lift one's head E for the upper end of the high pressure winding H2
Point is connected with high pressure winding H1 upper end G points of lifting one's head, the tune that the lower end of the high pressure winding H2 is lifted one's head at F points and tap-changing windings T
Press the connection of change-over switch K points, the lower end of high pressure winding H2 F points of lifting one's head are lifted one's head with high pressure winding H1 lower end and are connected, described
G points lift one's head as electrical network access point in high pressure winding H1 upper end；
The high pressure winding H1, high pressure winding H2, which carry out being connected in parallel at the scene, to be converted to the mode being connected in series and is：Disconnect institute
The lift one's head E points and high pressure winding H1 upper end of upper end for stating high pressure winding H2 is lifted one's head the connections of G points, disconnects the high pressure winding H2's
Lower end lift one's head F points and tap-changing windings T place pressure regulation change-over switch K points connection, the upper end of the high pressure winding H2 lift one's head E points and
Pressure regulation change-over switch K points connection at tap-changing windings T, the lower end of high pressure winding H2 F points of lifting one's head are kept and high pressure winding H1
Lower end lift one's head connection, G points are lifted one's head as electrical network access point in the upper end of the high pressure winding H1.
A kind of 4. double power network power transformers according to claim 1, it is characterised in that：The low pressure winding, high pressure
Winding H1, high pressure winding H2 and tap-changing windings T arranged concentrics.
A kind of 5. double power network power transformers according to claim 2, it is characterised in that：When external electrical network is 220KV
During power network, the high pressure winding H1, high pressure winding H2 are in and are connected in series, and external electrical network access high pressure winding H1 upper end is lifted one's head
G points, the power transformer is as 220KV transformers.
A kind of 6. double power network power transformers according to claim 3, it is characterised in that：When external electrical network is 110KV
During power network, the high pressure winding H1, high pressure winding H2 are in and are connected in parallel, and external electrical network access high pressure winding H1 upper end is lifted one's head
G points, the power transformer is as 110KV transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900956.6U CN206921667U (en) | 2017-07-24 | 2017-07-24 | A kind of double power network power transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720900956.6U CN206921667U (en) | 2017-07-24 | 2017-07-24 | A kind of double power network power transformers |
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| CN206921667U true CN206921667U (en) | 2018-01-23 |
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| CN201720900956.6U Active CN206921667U (en) | 2017-07-24 | 2017-07-24 | A kind of double power network power transformers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369542A (en) * | 2017-07-24 | 2017-11-21 | 江苏五洲电力科技有限公司 | A kind of double power network power transformers |
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- 2017-07-24 CN CN201720900956.6U patent/CN206921667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369542A (en) * | 2017-07-24 | 2017-11-21 | 江苏五洲电力科技有限公司 | A kind of double power network power transformers |
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