GB735371A - Improvements in and relating to electrical transformers having on-load tap changing apparatus - Google Patents
Improvements in and relating to electrical transformers having on-load tap changing apparatusInfo
- Publication number
- GB735371A GB735371A GB1331/53A GB133153A GB735371A GB 735371 A GB735371 A GB 735371A GB 1331/53 A GB1331/53 A GB 1331/53A GB 133153 A GB133153 A GB 133153A GB 735371 A GB735371 A GB 735371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tapping
- inductor
- secondary winding
- tap
- tap changing
- 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)
- Ac-Ac Conversion (AREA)
Abstract
735,371. Transformers. ENGLISH ELECTRIC CO., Ltd. Jan. 15, 1954 [Jan. 16, 1953], No. 1331/53. Class 38 (2). A transformer tap changing system comprises a transformer 20, having two secondary windings 20b, 20c each provided with a set of corresponding tappings and drum-type tap changing gear 33 which operates in a sequence which includes the following steps: (a) connecting an inductor 34 between a tapping 25 on secondary winding 20c and a corresponding tapping 29 on secondary winding 20b; (b) connecting the tapping 25 on the secondary wind-. ing 20c to a further tapping 30 on the secondary winding 20b and the tapping 29 on the secondary winding 20b to a further tapping 26 on the secondary winding 20c and (c) disconnecting the connections between the inductor 34 and the tappings 25, 29 on the secondary windings 20b, 20c. The inductor 34 has a mid-tap forming a common output connection to a load 24 which may be a D.C. load fed through rectifiers 22, 23. The mid-tap also allows the inductor to be short circuited after a connection has been made during a tap change operation, this short circuit being removed however before the disconnection step is made. If, however, the regulation of the equipment is not critical this short circuiting may be omitted. The leakage reactance of the inductor may be made to have a high value to exert a smoothing effect on the system.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB321293X | 1953-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB735371A true GB735371A (en) | 1955-08-17 |
Family
ID=10333715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1331/53A Expired GB735371A (en) | 1953-01-16 | 1953-01-16 | Improvements in and relating to electrical transformers having on-load tap changing apparatus |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE525583A (en) |
CH (1) | CH321293A (en) |
FR (1) | FR1091279A (en) |
GB (1) | GB735371A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2152764A (en) * | 1984-01-05 | 1985-08-07 | Donald Francis Binns | Improvements to transformers |
-
0
- BE BE525583D patent/BE525583A/xx unknown
-
1953
- 1953-01-16 GB GB1331/53A patent/GB735371A/en not_active Expired
-
1954
- 1954-01-09 FR FR1091279D patent/FR1091279A/en not_active Expired
- 1954-01-13 CH CH321293D patent/CH321293A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2152764A (en) * | 1984-01-05 | 1985-08-07 | Donald Francis Binns | Improvements to transformers |
Also Published As
Publication number | Publication date |
---|---|
FR1091279A (en) | 1955-04-08 |
CH321293A (en) | 1957-04-30 |
BE525583A (en) |
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