GB747687A - Improvements in and relating to motor equipment for electrically driven winding and like gear - Google Patents

Improvements in and relating to motor equipment for electrically driven winding and like gear

Info

Publication number
GB747687A
GB747687A GB2552253A GB2552253A GB747687A GB 747687 A GB747687 A GB 747687A GB 2552253 A GB2552253 A GB 2552253A GB 2552253 A GB2552253 A GB 2552253A GB 747687 A GB747687 A GB 747687A
Authority
GB
United Kingdom
Prior art keywords
motor
rectifier
control
resistors
master controller
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
GB2552253A
Inventor
Thomas Hayes Petch
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 GB2552253A priority Critical patent/GB747687A/en
Publication of GB747687A publication Critical patent/GB747687A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/24—Circuits for controlling the lowering of the load by dc motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

747,687. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Sept. 3, 1954 [Sept. 15, 1953], No. 25522/53. Class 38(3) The armature M of a winder motor is supplied through a controlled' rectifier AR and is adapted to be connected in parallel with a number of resistors SR1- SR4, means being provided for the simultaneous regulation of the output of the rectifier and the value of the parallel resistance. As shown, the sequential operation of a number of contactors S1C-S4C having contacts S1-S4 in series with resistors SR1-SR4 is effected by a master controller MC which is also coupled to an induction regulator 1R in the control circuit of the rectifier. Progressive movement of control handle DL from the "off" position increases the rectifier output and, at the same time, increases the resistance in parallel with the motor, until all the resistors are open-circuited and control of the motor is dependent upon the rectifiers output alone. In another arrangement the rectifier is controlled by means of a stepped resistance in its grid circuit so that the increase of rectifier voltage occurs by finite amounts at given positions of the master controller. When the back-electromotive force of the motor exceeds the rectifier voltage, the circulation of current in the armature and parallelconnected' resistors affords braking operation. The field winding MF of the motor is connected to a cross flux exciter E having a control winding CW adapted for reversible energization according to the direction of operation of the master controller, as well as an opposing winding FW providing negative feed-back. In an automatic winder, wherein the motor is controlled by means differentially responsive to the actual speed of the winder and to a reference value which is cam-adjusted in accordance with the winder-position, the differential means may operate the master controller or otherwise provide control of the motor in the manner described.
GB2552253A 1953-09-15 1953-09-15 Improvements in and relating to motor equipment for electrically driven winding and like gear Expired GB747687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2552253A GB747687A (en) 1953-09-15 1953-09-15 Improvements in and relating to motor equipment for electrically driven winding and like gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2552253A GB747687A (en) 1953-09-15 1953-09-15 Improvements in and relating to motor equipment for electrically driven winding and like gear

Publications (1)

Publication Number Publication Date
GB747687A true GB747687A (en) 1956-04-11

Family

ID=10229050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2552253A Expired GB747687A (en) 1953-09-15 1953-09-15 Improvements in and relating to motor equipment for electrically driven winding and like gear

Country Status (1)

Country Link
GB (1) GB747687A (en)

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