GB1246920A - On-load tap-changing arrangement for use with tapped transformers and chokes - Google Patents
On-load tap-changing arrangement for use with tapped transformers and chokesInfo
- Publication number
- GB1246920A GB1246920A GB5143369A GB5143369A GB1246920A GB 1246920 A GB1246920 A GB 1246920A GB 5143369 A GB5143369 A GB 5143369A GB 5143369 A GB5143369 A GB 5143369A GB 1246920 A GB1246920 A GB 1246920A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tap
- rectifier
- capacitor
- oct
- enable
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Thyristor Switches And Gates (AREA)
Abstract
1,246,920. Transformers. SIEMENS A.G. 20 Oct., 1969 [18 Oct., 1968], No. 51433/69. Heading H1T. A tap changing arrangement has rectifier bridges 4, 5 connected, at the instant of tap position changeover, to two taps by means of selector switch arms 2, 3. Controlled rectifiers 60, 70 in the respective D.C. bridge arms have their negative poles connected by a capacitor 110. At changeover of tap positions, the unconnected selector arm is engaged with the next tap, the capacitor 110 then charging up to the tap differential voltage. A firing pulse then turns on the other controlled rectifier, causing the capacitor to discharge, thus ensuring rapid turn-off of the un-pulsed rectifier. Inductors 80, 90 enable the conductive rectifier to remain so during current zero conditions without the need of continuous firing pulses. Control of the alternating firing pulses would enable a gradual transition from one tap position to the other.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681803741 DE1803741B2 (en) | 1968-10-18 | 1968-10-18 | ARRANGEMENT FOR SWITCHING THE LOAD FOR STEPPED TRANSFORMERS OR REACTORS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1246920A true GB1246920A (en) | 1971-09-22 |
Family
ID=5710810
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5142869A Expired GB1236505A (en) | 1968-10-18 | 1969-10-20 | On-load tap-changing arrangement for star-point connection to tapped transformers or chokes |
| GB5143369A Expired GB1246920A (en) | 1968-10-18 | 1969-10-20 | On-load tap-changing arrangement for use with tapped transformers and chokes |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5142869A Expired GB1236505A (en) | 1968-10-18 | 1969-10-20 | On-load tap-changing arrangement for star-point connection to tapped transformers or chokes |
Country Status (8)
| Country | Link |
|---|---|
| JP (3) | JPS4932083B1 (en) |
| BE (2) | BE740008A (en) |
| CH (2) | CH506172A (en) |
| DE (1) | DE1803741B2 (en) |
| FR (2) | FR2020985A1 (en) |
| GB (2) | GB1236505A (en) |
| NL (2) | NL6915144A (en) |
| SE (2) | SE361376B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2424766A (en) * | 2005-03-31 | 2006-10-04 | Areva T & D Sa | Resonant circuit arrangement used to commutate switches of an on-load tap changer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094456A (en) * | 1973-12-24 | 1975-07-28 | ||
| FR2344185A1 (en) * | 1976-03-09 | 1977-10-07 | Le P Experimen | DEVICE FOR THE CONTACTLESS SWITCHING OF THE TAPS OF A TRANSFORMER ON LOAD |
| SE9903392L (en) * | 1999-09-20 | 2001-03-21 | Abb Ab | Electric coupling device, method for controlling the same and use of the coupling device |
-
1968
- 1968-10-18 DE DE19681803741 patent/DE1803741B2/en active Granted
-
1969
- 1969-09-16 CH CH1394569A patent/CH506172A/en not_active IP Right Cessation
- 1969-09-16 CH CH1394669A patent/CH497082A/en not_active IP Right Cessation
- 1969-10-07 NL NL6915144A patent/NL6915144A/xx not_active Application Discontinuation
- 1969-10-09 NL NL6915287A patent/NL6915287A/xx not_active Application Discontinuation
- 1969-10-09 BE BE740008D patent/BE740008A/xx unknown
- 1969-10-09 JP JP8107869A patent/JPS4932083B1/ja active Pending
- 1969-10-14 FR FR6935166A patent/FR2020985A1/fr not_active Withdrawn
- 1969-10-16 BE BE740370D patent/BE740370A/xx unknown
- 1969-10-16 FR FR6935523A patent/FR2021001B1/fr not_active Expired
- 1969-10-17 SE SE1427469A patent/SE361376B/xx unknown
- 1969-10-17 SE SE1427569A patent/SE349691B/xx unknown
- 1969-10-20 GB GB5142869A patent/GB1236505A/en not_active Expired
- 1969-10-20 GB GB5143369A patent/GB1246920A/en not_active Expired
-
1972
- 1972-06-28 JP JP6488172A patent/JPS4933494B1/ja active Pending
- 1972-06-28 JP JP6488072A patent/JPS4933493B1/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2424766A (en) * | 2005-03-31 | 2006-10-04 | Areva T & D Sa | Resonant circuit arrangement used to commutate switches of an on-load tap changer |
| GB2424766B (en) * | 2005-03-31 | 2007-06-27 | Areva T & D Sa | An on-load tap changer |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2021001A1 (en) | 1970-07-17 |
| FR2020985A1 (en) | 1970-07-17 |
| FR2021001B1 (en) | 1973-03-16 |
| BE740008A (en) | 1970-03-16 |
| JPS4932083B1 (en) | 1974-08-27 |
| SE349691B (en) | 1972-10-02 |
| SE361376B (en) | 1973-10-29 |
| NL6915144A (en) | 1970-04-21 |
| JPS4933494B1 (en) | 1974-09-07 |
| CH497082A (en) | 1970-09-30 |
| JPS4933493B1 (en) | 1974-09-07 |
| GB1236505A (en) | 1971-06-23 |
| NL6915287A (en) | 1970-04-21 |
| BE740370A (en) | 1970-04-01 |
| DE1803741B2 (en) | 1972-06-22 |
| CH506172A (en) | 1971-04-15 |
| DE1803741A1 (en) | 1970-07-30 |
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