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GB1125439A - Voltage regulated polyphase transformer systems - Google Patents

Voltage regulated polyphase transformer systems

Info

Publication number
GB1125439A
GB1125439A GB52291/64A GB5229164A GB1125439A GB 1125439 A GB1125439 A GB 1125439A GB 52291/64 A GB52291/64 A GB 52291/64A GB 5229164 A GB5229164 A GB 5229164A GB 1125439 A GB1125439 A GB 1125439A
Authority
GB
United Kingdom
Prior art keywords
windings
winding
transformer
tap changing
transformers
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
Application number
GB52291/64A
Inventor
Fahir Bedil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB52291/64A priority Critical patent/GB1125439A/en
Priority to US512409A priority patent/US3374426A/en
Priority to CH1753165A priority patent/CH459355A/en
Priority to FR43547A priority patent/FR1461848A/en
Publication of GB1125439A publication Critical patent/GB1125439A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
    • H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
    • H02M5/10—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
    • H02M5/12—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of voltage or current amplitude only
    • 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)
  • Housings And Mounting Of Transformers (AREA)

Abstract

1,125,439. Transformers. ENGLISH ELECTRIC CO. Ltd. 21 Dee., 1965 [23 Dec., 1964], No. 52291/64. Heading H1T. [Also in Division H2] A tap changing polyphase transformer system for supplying both a main and an auxiliary load is so arranged and interconnected that operation of the tap changing apparatus to vary the voltage applied to the main load does not cause changes in phase of the voltage applied to the auxiliary load. A three-phase transformer 4 comprises phase windings A, B, C, each of which is divided into three sections 1, 2, 3 of which the sections 3 are provided with tappings 10-16. Tap changing switches are associated with the tappings together with a reversing switch 5 so that the voltage selected by the tap changing switches can be arranged to buck or boost the voltages of the winding sections 1, 2 in series. The main load is supplied from terminals 6, 7, 8 or 1A1, 1BI, 1C1, this being determined by a step-down on step-up of the transformer, the transformer supplying the main load in autotransformer manner. Further windings A1, B1 C1 connected in delta are wound on the core links containing the winding sections 1, 2, 3, the delta point of the windings being connected to the secondary windings 17, 20, 23 respectively of transformers 18, 21, 24 to provide output terminals 18A, 21A, 24A supplying the auxiliary load. The primary windings 19, 22, 25 of these transformers are each connected between two phases of the transformer 4 at the " inner " ends of the winding sections two, the winding 19 between points 26, 28, winding 22 between points 26, 27 and winding 25 between points 27, 28. The phase positions of the transformers 18, 21, 24 thus correspond to those of the delta connected windings such that voltage regulation of the system by the tap changing apparatus has no effect on the relative phase positions.
GB52291/64A 1964-12-23 1964-12-23 Voltage regulated polyphase transformer systems Expired GB1125439A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB52291/64A GB1125439A (en) 1964-12-23 1964-12-23 Voltage regulated polyphase transformer systems
US512409A US3374426A (en) 1964-12-23 1965-12-08 Voltage regulated polyphase auto transformer
CH1753165A CH459355A (en) 1964-12-23 1965-12-20 Polyphase auto-transformer with voltage adjustment
FR43547A FR1461848A (en) 1964-12-23 1965-12-23 Voltage regulated polyphase autotransformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52291/64A GB1125439A (en) 1964-12-23 1964-12-23 Voltage regulated polyphase transformer systems

Publications (1)

Publication Number Publication Date
GB1125439A true GB1125439A (en) 1968-08-28

Family

ID=10463375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52291/64A Expired GB1125439A (en) 1964-12-23 1964-12-23 Voltage regulated polyphase transformer systems

Country Status (4)

Country Link
US (1) US3374426A (en)
CH (1) CH459355A (en)
FR (1) FR1461848A (en)
GB (1) GB1125439A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944697B1 (en) * 1969-11-28 1974-11-29
US4023090A (en) * 1976-07-06 1977-05-10 Peter Kljucaricek Zagreb electrical circuit
CH629622A5 (en) * 1978-04-10 1982-04-30 Bbc Brown Boveri & Cie Turn transformer to progressively adjustment uebersetzungsverhaeltnisses and phase turn and method for operating the pan transformer.
US5475628A (en) * 1992-09-30 1995-12-12 Analog Devices, Inc. Asynchronous digital sample rate converter

Also Published As

Publication number Publication date
US3374426A (en) 1968-03-19
FR1461848A (en) 1966-12-09
CH459355A (en) 1968-07-15

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