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GB983273A - Improvements relating to synchronously operable electrical machines - Google Patents

Improvements relating to synchronously operable electrical machines

Info

Publication number
GB983273A
GB983273A GB4910262A GB4910262A GB983273A GB 983273 A GB983273 A GB 983273A GB 4910262 A GB4910262 A GB 4910262A GB 4910262 A GB4910262 A GB 4910262A GB 983273 A GB983273 A GB 983273A
Authority
GB
United Kingdom
Prior art keywords
rectifiers
rings
slip
rotor
parallel
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
GB4910262A
Inventor
David Douglas 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 GB4910262A priority Critical patent/GB983273A/en
Publication of GB983273A publication Critical patent/GB983273A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

983,273. Control of A.C. motors; dynamoelectric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 17, 1963 [Dec. 31, 1962], No. 49102/62. Headings H2A and H2J. The salient pole rotor winding 1 of a synchronous machine is excited from the rotor 2 of a co-rotating exciter through rectifiers 4 which also rotate with the machine. A capacitor, resistance-inductance betwork, or other surge diverting device 11 is connected through slip-rings 7, 8 in parallel with the rectifiers. A resistor may be connected netween the brushes for asynchronous operation of the machine. For synchronous operation, the resistor is disconnected, leaving the protective device in circuit. An additional resistor of high ohmic value may be mounted on the rotor of a synchronous motor and permanently connected in parallel with the salient pole winding of the motor. This resistance protects the rectifiers and acts in conjunction with an external resistance to control the starting operation. In another arrangement, the polyphase rotor winding of a synchronous-induction machine is connected through slip-rings to a starting resistor. Two of these slip-rings are interconnected for synchronous operation so that two of the rotor phases are connected in parallel with each other and in series with the third phase. Protective elements are connected in parallel with the rectifiers through another set of slip-rings, or through a pair of the sliprings associated with the starting resistor. In a further embodiment, a salient pole winding is connected to an exciter through rectifiers, as before, and a polyphase pole-face winding is connected through slip-rings to starting resistances. Protective circuit elements are connected in parallel with the rectifiers through light duty slip-rings. Automatic rotor field suppressors may be connected through sliprings to the excitation circuit.
GB4910262A 1962-12-31 1962-12-31 Improvements relating to synchronously operable electrical machines Expired GB983273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4910262A GB983273A (en) 1962-12-31 1962-12-31 Improvements relating to synchronously operable electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4910262A GB983273A (en) 1962-12-31 1962-12-31 Improvements relating to synchronously operable electrical machines

Publications (1)

Publication Number Publication Date
GB983273A true GB983273A (en) 1965-02-17

Family

ID=10451155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4910262A Expired GB983273A (en) 1962-12-31 1962-12-31 Improvements relating to synchronously operable electrical machines

Country Status (1)

Country Link
GB (1) GB983273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152719A1 (en) * 1984-02-17 1985-08-28 Siemens Aktiengesellschaft Electric synchronous machine excited through rotated rectifiers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152719A1 (en) * 1984-02-17 1985-08-28 Siemens Aktiengesellschaft Electric synchronous machine excited through rotated rectifiers

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