GB698134A - Improvements in or relating to electrical frequency converter arrangements or systems - Google Patents

Improvements in or relating to electrical frequency converter arrangements or systems

Info

Publication number
GB698134A
GB698134A GB1080851A GB1080851A GB698134A GB 698134 A GB698134 A GB 698134A GB 1080851 A GB1080851 A GB 1080851A GB 1080851 A GB1080851 A GB 1080851A GB 698134 A GB698134 A GB 698134A
Authority
GB
United Kingdom
Prior art keywords
slip
motor
stator
frequency
rings
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
GB1080851A
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.)
JOHN VICTOR WOODS
Laurence Scott and Electromotors Ltd
Original Assignee
JOHN VICTOR WOODS
Laurence Scott and Electromotors 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 JOHN VICTOR WOODS, Laurence Scott and Electromotors Ltd filed Critical JOHN VICTOR WOODS
Priority to GB1080851A priority Critical patent/GB698134A/en
Publication of GB698134A publication Critical patent/GB698134A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K47/00—Dynamo-electric converters
    • H02K47/18—AC/AC converters
    • H02K47/22—Single-armature frequency converters with or without phase-number conversion
    • H02K47/28—Single-armature frequency converters with or without phase-number conversion operating as commutator machines with added slip-rings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

698,134. Frequency changers. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., and WOODS, J. V. May 6, 1952 [May 8, 1951], No. 10808/51. Class 35. A converter 6, 7 which converts current applied to its slip-rings 4 at one frequency to current at another frequency at its commutator, is driven by a pony motor 5 whose stator carries an additional winding 3 inductively linked to its normal stator winding 2 and serving to supply the slip-rings 4 by transformer action with current of the same or a different number of phases. In the form shown the stator 7 is unwound, the pony motor is a simple squirrel-cage motor fed through isolating switches and overload cut-outs 1, but in a modification, it may have a wound rotor connected through slip-rings to a speed-regulating resistance. In a further modification, the pony motor is a three-phase shunt stator-fed commutator machine whose brushes are connected back to the line through an induction regulator for speed control. Alternatively the motor brushes may be connected to the converter slip-ring brushes and both connected to the winding 3, the voltage of which may be bucked or boosted by an induction regulator. By this means simultaneous control of voltage and frequency is obtained.
GB1080851A 1951-05-08 1951-05-08 Improvements in or relating to electrical frequency converter arrangements or systems Expired GB698134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1080851A GB698134A (en) 1951-05-08 1951-05-08 Improvements in or relating to electrical frequency converter arrangements or systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1080851A GB698134A (en) 1951-05-08 1951-05-08 Improvements in or relating to electrical frequency converter arrangements or systems

Publications (1)

Publication Number Publication Date
GB698134A true GB698134A (en) 1953-10-07

Family

ID=9974654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1080851A Expired GB698134A (en) 1951-05-08 1951-05-08 Improvements in or relating to electrical frequency converter arrangements or systems

Country Status (1)

Country Link
GB (1) GB698134A (en)

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