CN2901526Y - Dry end voltage regulation transformer - Google Patents
Dry end voltage regulation transformer Download PDFInfo
- Publication number
- CN2901526Y CN2901526Y CN 200620072537 CN200620072537U CN2901526Y CN 2901526 Y CN2901526 Y CN 2901526Y CN 200620072537 CN200620072537 CN 200620072537 CN 200620072537 U CN200620072537 U CN 200620072537U CN 2901526 Y CN2901526 Y CN 2901526Y
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- CN
- China
- Prior art keywords
- copper bar
- copper
- primary coil
- phase
- coil
- Prior art date
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- Expired - Lifetime
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a dry-type end variable transformer, whose iron core utilizes three-phase heart type structure and an outer coil winded by copper wire is a primary coil, an inner coil winded by copper wire or copper foil is a secondary coil connected as a star connection. Two or more grading leading wires are leaded-out from each of the three ends of the primary coil, and copper strip tapping terminals X1, X2..., Y1, Y2..., Z1, Z2... are welded on each of the grading leading wires. Leading-in ends copper strips of phase A, phase B and phase C of the primary coil are connected with each of the copper strip tapping terminals as tail ends of the primary coil via a connecting copper strip to form a delta connection. The connecting copper strip connected with each of the leading-in ends copper strips of the primary coil slips up and down via a short-circuit copper strip to slipping connect respectively with any of the every copper strip tapping terminals. The utility model has the beneficial effect of providing a dry-type end variable transformer with better manufacturability and reliability, whose capacity can be enlarged, and capable of meeting the special requirement a to larger capacity.
Description
Affiliated technical field
The utility model relates to a kind of dry type end voltage regulating transformer, belongs to the power transformer technical field.
Background technology
At present a lot of dry-type distribution transformers are that primary voltage is 0.38KV, and secondary voltage is the special transformer of various distribution voltages, and for example secondary voltage is 0.22KV.The conventional relatively 10/0.4KV dry-type distribution transformer of such special transformer primary current is bigger, promptly is difficult to reach the purpose of pressure regulation with the shunting tap pressure regulation at the primary coil middle part with conventional method, on technology, can not meet the demands on the reliability especially.
Summary of the invention
The purpose of this utility model provides a kind of capacity and can do greatly, and has better manufacturability and reliability, can satisfy the dry type end voltage regulating transformer of larger capacity specific (special) requirements.
The technical solution of the utility model is: a kind of dry type end voltage regulating transformer.Iron core adopts the three-phase heart type structure, and exterior loop is a primary coil, is made of the copper conductor coiling, is connected into delta connection.Interior loop is a secondary coil, is made of copper conductor or Copper Foil coiling, is connected into star connection.The graded wire more than two is all drawn in the end of three primary coils, directly be welded with on each tap lead copper bar tap terminals X1, X2 ..., Y1, Y2 ..., Z1, Z2 ...Primary coil A phase end of incoming cables copper bar, B phase end of incoming cables copper bar, C phase end of incoming cables copper bar with as each copper bar tap terminals X1, X2 of primary coil tail end ..., Y1, Y2 ..., Z1, Z2 ... between connect into delta connection by connecting copper bar.Be connected with each end of incoming cables copper bar be connected copper bar by the short circuit copper bar slide up and down respectively with each copper bar tap terminals in any terminal be slidingly connected, so just can realize dividing and keep off connection.The end of incoming cables copper bar is connected with different tap terminals gear and just forms different voltage, so just can realize the purpose of end pressure regulation.It is 0.38KV that this transformer is mainly used in primary voltage, and secondary voltage is 0.22KV, particularly 250KVA and above transformer.
The beneficial effects of the utility model have provided a kind of capacity and can do greatly, and have better manufacturability and reliability, can satisfy the dry type end voltage regulating transformer of larger capacity specific (special) requirements.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an electrical connection schematic diagram of the present utility model.
Among the figure: 1, iron core, 2, primary coil, 3, the copper bar tap terminals, 4, the short circuit copper bar, 5, secondary coil, 6, A phase end of incoming cables copper bar, 7, B phase end of incoming cables copper bar, 8, C phase end of incoming cables copper bar, 9, connect copper bar.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, shown in Figure 2 be an embodiment of a kind of dry type of the utility model end voltage regulating transformer.Iron core 1 adopts the three-phase heart type structure, and exterior loop is a primary coil 2, is made of the copper conductor coiling, is connected into delta connection.Interior loop is a secondary coil 5, is made of copper conductor or Copper Foil coiling, is connected into star connection.Three graded wire are all drawn in the end of three primary coils 2, directly are welded with copper bar tap terminals 3 on each tap lead.The X2 of copper bar tap terminals 3 and B end of incoming cables copper bar 7 mutually are connected, and the Y2 of copper bar tap terminals 3 and C end of incoming cables copper bar 8 mutually are connected, and the Z2 of copper bar tap terminals 3 and A end of incoming cables copper bar 6 mutually are connected.It is 0.38KV that the utility model is used for primary voltage, and secondary voltage is the transformer of 0.22KV.
Claims (1)
- A kind of dry type end voltage regulating transformer, iron core adopts the three-phase heart type structure, and exterior loop is a primary coil, is made of the copper conductor coiling, is connected into delta connection; Interior loop is a secondary coil, is made of copper conductor or Copper Foil coiling, is connected into star connection; It is characterized in that: the graded wire more than two is all drawn in the end of three primary coils, directly be welded with copper bar tap terminals X1 on each tap lead, X2 ... Y1, Y2 ... Z1, Z2 ... at primary coil A phase end of incoming cables copper bar, B phase end of incoming cables copper bar, C phase end of incoming cables copper bar with as each copper bar tap terminals X1 of primary coil tail end, X2, Y1, Y2, Z1, Z2, between connect into delta connection by connecting copper bar, be connected with each primary coil end of incoming cables copper bar be connected copper bar by the short circuit copper bar slide up and down respectively with each copper bar tap terminals in any terminal be slidingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072537 CN2901526Y (en) | 2006-04-14 | 2006-04-14 | Dry end voltage regulation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072537 CN2901526Y (en) | 2006-04-14 | 2006-04-14 | Dry end voltage regulation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2901526Y true CN2901526Y (en) | 2007-05-16 |
Family
ID=38085690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072537 Expired - Lifetime CN2901526Y (en) | 2006-04-14 | 2006-04-14 | Dry end voltage regulation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2901526Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124036A (en) * | 2014-06-26 | 2014-10-29 | 株洲南车机电科技有限公司 | Magnetic coupling electric reactor |
| CN106783109A (en) * | 2017-02-07 | 2017-05-31 | 河南森源电气股份有限公司 | A kind of Inverter Experimental transformer |
| CN112133548A (en) * | 2020-09-17 | 2020-12-25 | 天津市特变电工变压器有限公司 | Large-current belt-tapping voltage-regulating dry-type transformer and voltage regulating method |
| CN117672691A (en) * | 2024-01-31 | 2024-03-08 | 深圳市中变电力设备有限公司 | Dry-type power transformer |
-
2006
- 2006-04-14 CN CN 200620072537 patent/CN2901526Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124036A (en) * | 2014-06-26 | 2014-10-29 | 株洲南车机电科技有限公司 | Magnetic coupling electric reactor |
| CN104124036B (en) * | 2014-06-26 | 2016-08-17 | 株洲南车机电科技有限公司 | Magnetic coupling reactor |
| CN106783109A (en) * | 2017-02-07 | 2017-05-31 | 河南森源电气股份有限公司 | A kind of Inverter Experimental transformer |
| CN112133548A (en) * | 2020-09-17 | 2020-12-25 | 天津市特变电工变压器有限公司 | Large-current belt-tapping voltage-regulating dry-type transformer and voltage regulating method |
| CN117672691A (en) * | 2024-01-31 | 2024-03-08 | 深圳市中变电力设备有限公司 | Dry-type power transformer |
| CN117672691B (en) * | 2024-01-31 | 2024-04-05 | 深圳市中变电力设备有限公司 | Dry-type power transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070516 |
|
| EXPY | Termination of patent right or utility model |