GB670046A - Improvements relating to electric motor control systems - Google Patents

Improvements relating to electric motor control systems

Info

Publication number
GB670046A
GB670046A GB1936949A GB1936949A GB670046A GB 670046 A GB670046 A GB 670046A GB 1936949 A GB1936949 A GB 1936949A GB 1936949 A GB1936949 A GB 1936949A GB 670046 A GB670046 A GB 670046A
Authority
GB
United Kingdom
Prior art keywords
motors
generator
motor
supply
voltage
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
GB1936949A
Inventor
Eric Alton Binney
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 GB1936949A priority Critical patent/GB670046A/en
Publication of GB670046A publication Critical patent/GB670046A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • B60L9/16—Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/24—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
    • B60L9/26—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines single-phase motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Abstract

670,046. Control of A.C. motors. ENGLISH ELECTRIC CO., Ltd. Sept. 13, 1950. [July 22, 1949] No. 19369/49. Class 38 (iii). A single phase series commutator motor which may be used for driving a locomotive is started from a D.C. supply, and, at some stage during acceleration, is changed over to an A.C. source of supply. In Fig. 1, a master controller is moved initially to increase, gradually the excitation of a generator G so steadily increasing the direct voltage applied to motors M1, M2. Further movement of the controller causes progressive reduction of the generator voltage and simultaneous increase of the alternating voltage applied to the motors through tappings of transformer 12, the generator being shortcircuited when its voltage is reduced to zero: Rheostatic braking is effected by connecting motor field windings M1f, M2f, to the generator G and placing resistor 29 across the motor armatures: The change-over from D.C. to A.C. energization of the motors may be. made by automatic speed-responsive means. In multimotor units, all the motors are started together on D.C. and, at some stage during acceleration, each motor is in turn changed over to the A.C. supply by reducing the direct voltage and at the same time increasing the alternating voltage from zero to maximum. , The Provisional'Specification refers to D.C. energization of the motors through a rectifier.
GB1936949A 1949-07-22 1949-07-22 Improvements relating to electric motor control systems Expired GB670046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1936949A GB670046A (en) 1949-07-22 1949-07-22 Improvements relating to electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1936949A GB670046A (en) 1949-07-22 1949-07-22 Improvements relating to electric motor control systems

Publications (1)

Publication Number Publication Date
GB670046A true GB670046A (en) 1952-04-09

Family

ID=10128193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1936949A Expired GB670046A (en) 1949-07-22 1949-07-22 Improvements relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB670046A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094290B (en) * 1954-12-22 1960-12-08 Siemens Ag Start-up circuit for AC series traction motors of single-phase powered rail vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094290B (en) * 1954-12-22 1960-12-08 Siemens Ag Start-up circuit for AC series traction motors of single-phase powered rail vehicles

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