GB313427A - Improvements in electric traction systems - Google Patents

Improvements in electric traction systems

Info

Publication number
GB313427A
GB313427A GB7424/28A GB742428A GB313427A GB 313427 A GB313427 A GB 313427A GB 7424/28 A GB7424/28 A GB 7424/28A GB 742428 A GB742428 A GB 742428A GB 313427 A GB313427 A GB 313427A
Authority
GB
United Kingdom
Prior art keywords
parallel
motors
series
groups
class
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
GB7424/28A
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.)
WILLIAM TRAIN GRAY
Metropolitan Vickers Electrical Co Ltd
Original Assignee
WILLIAM TRAIN GRAY
Metropolitan Vickers Electrical 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 WILLIAM TRAIN GRAY, Metropolitan Vickers Electrical Co Ltd filed Critical WILLIAM TRAIN GRAY
Priority to GB7424/28A priority Critical patent/GB313427A/en
Publication of GB313427A publication Critical patent/GB313427A/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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
    • B60L15/04—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit using dc
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Abstract

313,427. Hall, A. J., Gray, W. T., and Associated Electrical Industries, Ltd. March 9, 1928. Series-parallel control systems; master control systems.-Electric motors for train propulsion are arranged in a number of groups, each group having two or more motors. The motors are connected and controlled so that one or more groups are in service as required, and so that all the motors can be connected either in series or parallel, passing through series-parallel transitional stages. Means are provided for cutting-out a defective group, while leaving the series-parallel control of the remainder unaffected. Fig. 1 is a diagrammatic view of the power circuits and switches for two groups of two motors each, current being taken from an overhead wire T through alternative collectors P<1>, P<2>. The closure of two manual switches d, e leaves both motor groups ready for service while opening of one switch excludes one of the groups. Cam-operated contactors for changing the connections of the motor armatures 1, 2 and their respective fields F from full series to series-parallel, and full parallel relation during motoring and also during regenerative braking, are shown in the diagram as circles enclosing parallel lines. Electropneumatic contactors for connecting the two groups together and for varying resistances r<1>, r<2> are shown as parallel lines. A master-control scheme for effecting the operation of the contactors according to the requirements of the invention is described in detail in the Specification. The complete arrangements includes means for changing the field-strength of the motors, the provision of separate excitation for use during regenerative braking, and the provision of safety interlocking devices. Specifications 234,571, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of]; 306,726 ; 308,002, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of]; 309,290, 312,715; 312,720. 313,211, [both in Class 38 (iv), Electric supply and transmission systems &c.] ; 313,665; and 314,107, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], are referred to.
GB7424/28A 1928-03-09 1928-03-09 Improvements in electric traction systems Expired GB313427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7424/28A GB313427A (en) 1928-03-09 1928-03-09 Improvements in electric traction systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7424/28A GB313427A (en) 1928-03-09 1928-03-09 Improvements in electric traction systems

Publications (1)

Publication Number Publication Date
GB313427A true GB313427A (en) 1929-06-10

Family

ID=9832849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7424/28A Expired GB313427A (en) 1928-03-09 1928-03-09 Improvements in electric traction systems

Country Status (1)

Country Link
GB (1) GB313427A (en)

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