GB553662A - Improvements in dynamo-electric machines - Google Patents

Improvements in dynamo-electric machines

Info

Publication number
GB553662A
GB553662A GB1180442A GB1180442A GB553662A GB 553662 A GB553662 A GB 553662A GB 1180442 A GB1180442 A GB 1180442A GB 1180442 A GB1180442 A GB 1180442A GB 553662 A GB553662 A GB 553662A
Authority
GB
United Kingdom
Prior art keywords
motor
clutch
starting
dynamo
magnetic leakage
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
GB1180442A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1180442A priority Critical patent/GB553662A/en
Publication of GB553662A publication Critical patent/GB553662A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/06—Dynamo-electric clutches; Dynamo-electric brakes of the synchronous type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors

Abstract

553,662. Cores for A.C. dynamo-electric matchines. BRITISH THOMSON-HOUSTON CO., Ltd., and POHL, R. Aug. 27, 1941, No. 11804/42. Divided out of 551,691. [Class 35] The circumference of the secondary member of a synchronous motor or clutch having salient poles (the stator 1 in the Figure) is provided with a thin sheet of magnetic material 6 extending over the salient pole faces and the intervening gaps. The material is preferably a steel alloy and has a high specific resistance and a high permeability. Its small thickness is such as to allow the penetration of induced current at starting thereby to endow the motor or clutch with the starting characteristics of an induction motor while not materially increasing magnetic leakage at synchronous speed. Holes may be provided in the bridges to reduce magnetic leakage. The winding on the primary member may be such as to enable a change of pole number to increase starting torque. Specification 373,537 is referred to.
GB1180442A 1941-08-27 1941-08-27 Improvements in dynamo-electric machines Expired GB553662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1180442A GB553662A (en) 1941-08-27 1941-08-27 Improvements in dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1180442A GB553662A (en) 1941-08-27 1941-08-27 Improvements in dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB553662A true GB553662A (en) 1943-05-31

Family

ID=9993005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1180442A Expired GB553662A (en) 1941-08-27 1941-08-27 Improvements in dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB553662A (en)

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