GB691062A - Automatic electrical control systems - Google Patents

Automatic electrical control systems

Info

Publication number
GB691062A
GB691062A GB986150A GB986150A GB691062A GB 691062 A GB691062 A GB 691062A GB 986150 A GB986150 A GB 986150A GB 986150 A GB986150 A GB 986150A GB 691062 A GB691062 A GB 691062A
Authority
GB
United Kingdom
Prior art keywords
field winding
amplifier
generator
supplied
tension
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
GB986150A
Inventor
James Patrick Corbett
Dudley Wray
Thomas Coxon
Walter Lewis Lifton Wynne
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.)
English Electric Co Ltd
Original Assignee
English 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB986150A priority Critical patent/GB691062A/en
Publication of GB691062A publication Critical patent/GB691062A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/198—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations motor-controlled (Controlling electrical drive motors therefor)
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/012—Automatic controllers electric details of the transmission means
    • G05B11/016—Automatic controllers electric details of the transmission means using inductance means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

691,062. Automatic current control systems. ENGLISH ELECTRIC CO., Ltd. April 20, 1951 [April 21, 1950], No. 9861/50. Class 38 (iv). In a servo amplifier a signal passing through one or more rotating D.C. machines is fed back through a transformer and magnetic amplifier to prevent hunting. In Fig. 1 to maintain strip tension constant in a cold strip rolling mill by maintaining constant the current supplied to a reel motor 1, a voltage dependent on motor current, obtained across a series resistor 3, energizes a control field winding 4 of a D.C. amplifier generator 10 which in turn energizes a control field winding 21 of another D.C. amplifier generator 20 supplying motor field winding 2. Tension is thus maintained at a value dependent on the energization of an opposed field winding 11 on generator 10, and to avoid hunting negative feed-back is applied to generator 10 by a further field winding 16 on it which is energized through a transformer 13 and a magnetic amplifier 15. In a modification (not shown), windings 11 and 16 are replaced by a pair of windings arranged with resistors in a bridge circuit, one diagonal of which is supplied from the magnetic amplifier and the other diagonal of which is supplied from a D.C. source adjustable for tension setting.
GB986150A 1950-04-21 1950-04-21 Automatic electrical control systems Expired GB691062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB986150A GB691062A (en) 1950-04-21 1950-04-21 Automatic electrical control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB986150A GB691062A (en) 1950-04-21 1950-04-21 Automatic electrical control systems

Publications (1)

Publication Number Publication Date
GB691062A true GB691062A (en) 1953-05-06

Family

ID=9880144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB986150A Expired GB691062A (en) 1950-04-21 1950-04-21 Automatic electrical control systems

Country Status (1)

Country Link
GB (1) GB691062A (en)

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