GB587881A - Improvements in line drop compensation of voltage regulators for alternating currentpower circuits - Google Patents
Improvements in line drop compensation of voltage regulators for alternating currentpower circuitsInfo
- Publication number
- GB587881A GB587881A GB8692/43A GB869243A GB587881A GB 587881 A GB587881 A GB 587881A GB 8692/43 A GB8692/43 A GB 8692/43A GB 869243 A GB869243 A GB 869243A GB 587881 A GB587881 A GB 587881A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformers
- circulating current
- circuits
- regulators
- current
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
587,881. Automatic control systems for electric supply. BRITISH THOMSON HOUSTON CO., Ltd. May 31, 1943, No. 8692. Convention date, May 29, 1942. [Class 38 (iv)] Voltage.-Regulators in separate circuits jointly supplying a load through a common line are compensated in respect of line drop and circulating current by means responsive to these values independently. Fig. 1 shows regulators 4 ... 7 for coils of three delta-connected tapchanging transformers supplying a load circuit 3 wherein current transformers 12 supplying the compensating circuits of the regulators are associated with a zig-zag transformer 13 and polyphase reactor 14 which, as regards any circulating current, have respectively low and high reactance. In consequence, all zero sequence, or circulating current, components flow through the compensating transformers 10 and all positive sequence currents flow through the line drop compensators 11. Relays 9 disable the regulators with conditions of excessive circulating current. Fig. 3 shows three parallel connected circuits 21 ... 21<11> which supply a common load by connections not shown. Auxiliary close-coupled current transformers 22 have their secondaries connected in series in a closed circuit so that the whole of the circulating current components are forced to flow through the compensating transformers 10 and effects of circulating current are neutralized. In a modified arrangement (Fig. 4, not shown), the transformers 22 used are no less than the number of paralleled circuits 21.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US587881XA | 1942-05-29 | 1942-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB587881A true GB587881A (en) | 1947-05-08 |
Family
ID=22018923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8692/43A Expired GB587881A (en) | 1942-05-29 | 1943-05-31 | Improvements in line drop compensation of voltage regulators for alternating currentpower circuits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB587881A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190219A (en) * | 1986-05-03 | 1987-11-11 | Nicholas John Hiscock | Voltage control for high voltage power transformers |
CN108631318A (en) * | 2017-03-24 | 2018-10-09 | 通用电气公司 | System and method for line drop compensation |
-
1943
- 1943-05-31 GB GB8692/43A patent/GB587881A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190219A (en) * | 1986-05-03 | 1987-11-11 | Nicholas John Hiscock | Voltage control for high voltage power transformers |
GB2190219B (en) * | 1986-05-03 | 1990-06-13 | Nicholas John Hiscock | A voltage control scheme for high voltage power transformers |
CN108631318A (en) * | 2017-03-24 | 2018-10-09 | 通用电气公司 | System and method for line drop compensation |
CN108631318B (en) * | 2017-03-24 | 2023-09-26 | Abb瑞士股份有限公司 | System and method for line voltage drop compensation |
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