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GB954604A - Improvements in and relating to the circuits of dynamo-electric synchronous motors - Google Patents

Improvements in and relating to the circuits of dynamo-electric synchronous motors

Info

Publication number
GB954604A
GB954604A GB920962A GB920962A GB954604A GB 954604 A GB954604 A GB 954604A GB 920962 A GB920962 A GB 920962A GB 920962 A GB920962 A GB 920962A GB 954604 A GB954604 A GB 954604A
Authority
GB
United Kingdom
Prior art keywords
rectifier circuit
machine
synchronous
march
dynamo
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
GB920962A
Inventor
Kenneth David Stephen
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB920962A priority Critical patent/GB954604A/en
Publication of GB954604A publication Critical patent/GB954604A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/102—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for limiting effects of transients
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
    • H02P1/50—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor by changing over from asynchronous to synchronous operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

954,604. Synchronous machines; control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 8, 1963 [March 9, 1962], No. 9209/62. Drawings to Specification. Headings H2A and H2J. The field excitation of a synchronous dynamoelectric machine, either a motor or generator, is switched on by means of a semi-conductor controlled rectifier (S.C.R.) when the rectified output voltage of the A.C. exciter is greater than a predetermined value, i.e. when the speed of the set approaches synchronous speed. A single S.C.R. may be connected in series with the output of a three-phase rectifier circuit or alternatively, for a brushless machine, three S.C.R.'s may be used forming part of the rectifier circuit. The trigger voltage is derived from pre-set potentiometers or each potentiometer may be replaced by a Zener diode or a Zener diode/diode combination. A polyphase exciter and matching rectifier circuit can also be used and all the components may be mounted for rotation with the shaft of the machine.
GB920962A 1962-03-09 1962-03-09 Improvements in and relating to the circuits of dynamo-electric synchronous motors Expired GB954604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB920962A GB954604A (en) 1962-03-09 1962-03-09 Improvements in and relating to the circuits of dynamo-electric synchronous motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB920962A GB954604A (en) 1962-03-09 1962-03-09 Improvements in and relating to the circuits of dynamo-electric synchronous motors

Publications (1)

Publication Number Publication Date
GB954604A true GB954604A (en) 1964-04-08

Family

ID=9867526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB920962A Expired GB954604A (en) 1962-03-09 1962-03-09 Improvements in and relating to the circuits of dynamo-electric synchronous motors

Country Status (1)

Country Link
GB (1) GB954604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235058A1 (en) * 1972-06-26 1974-01-17 Bbc Brown Boveri & Cie ARRANGEMENT FOR EXCITING AN ASYNCHRONOUSLY STARTING SYNCHRONOUS MOTOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235058A1 (en) * 1972-06-26 1974-01-17 Bbc Brown Boveri & Cie ARRANGEMENT FOR EXCITING AN ASYNCHRONOUSLY STARTING SYNCHRONOUS MOTOR

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