GB511811A - Improvements in or relating to electric motor control systems - Google Patents

Improvements in or relating to electric motor control systems

Info

Publication number
GB511811A
GB511811A GB21245/38A GB2124538A GB511811A GB 511811 A GB511811 A GB 511811A GB 21245/38 A GB21245/38 A GB 21245/38A GB 2124538 A GB2124538 A GB 2124538A GB 511811 A GB511811 A GB 511811A
Authority
GB
United Kingdom
Prior art keywords
motors
rectifier
control
speed
individual
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
GB21245/38A
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.)
Cutler Hammer Europe Ltd
Original Assignee
Igranic 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 Igranic Electric Co Ltd filed Critical Igranic Electric Co Ltd
Publication of GB511811A publication Critical patent/GB511811A/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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/48—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Paper (AREA)

Abstract

511,811. Converting ; automatic control of D.C. motors. IGRANIC ELECTRIC CO., Ltd. July 18, 1938, No. 21245. Convention date, July 21, 1937. [Classes 38 (ii) arid 38 (iv)] [Also in Group XXXVII] Speed.-In an arrangement providing individual and con-joint control for a number of D.C. motors forming a sectional paper machine drive, the motors, or, as shown, speed-regulating windings 6 thereon, are included in the respective anode circuits of a grid-controlled multi-anode rectifier 10, and the voltages applied to the several grids are controlled individually (e.g., automatically to maintain a given speed ratio between the motors) and also simultaneously, (e.g., by varying the speed of a control motor 22 with which the speeds of the individual motors are compared). Control of the individual grid voltages for the rectifier 10 is effected by inductances 21 the values of which depend upon the angular relationship between shafts 20, 24 as described in Specification 435,545, [Group XXXVII]. Where the control is effected by means of the field winding 6, a second rectifier 13 connected as shown is provided to enable current to persist in the winding during the non-conducting half cycles of the rectifier 10.
GB21245/38A 1937-07-21 1938-07-18 Improvements in or relating to electric motor control systems Expired GB511811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US511811XA 1937-07-21 1937-07-21

Publications (1)

Publication Number Publication Date
GB511811A true GB511811A (en) 1939-08-24

Family

ID=21969810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21245/38A Expired GB511811A (en) 1937-07-21 1938-07-18 Improvements in or relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB511811A (en)

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