GB512333A - Improvements in or relating to electric motor control systems - Google Patents

Improvements in or relating to electric motor control systems

Info

Publication number
GB512333A
GB512333A GB8402/38A GB840238A GB512333A GB 512333 A GB512333 A GB 512333A GB 8402/38 A GB8402/38 A GB 8402/38A GB 840238 A GB840238 A GB 840238A GB 512333 A GB512333 A GB 512333A
Authority
GB
United Kingdom
Prior art keywords
contactor
braking
resistance
relating
regenerative
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
GB8402/38A
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.)
EDWARD HUGH CROFT
General Electric Co PLC
Original Assignee
EDWARD HUGH CROFT
General Electric Co PLC
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 EDWARD HUGH CROFT, General Electric Co PLC filed Critical EDWARD HUGH CROFT
Priority to GB8402/38A priority Critical patent/GB512333A/en
Publication of GB512333A publication Critical patent/GB512333A/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
    • B60L15/10—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current
    • B60L15/12—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current with circuits controlled by relays or contactors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

512,333. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. March 18, 1938, No. 8402. [Class 38 (iii)] Regenerative and non-regenerative braking.- A contactor B, arranged to connect a motor 1 in a rheostatic braking circuit is operated by a coil BW connected during regenerative braking across the motor in series with a resistance 19, so that upon the occurrence of excess voltage during regeneration the contactor completes the rheostatic braking circuit, while for normal rheostatic braking the coil BW is energised from the supply independently of the resistance 19 by closure of contacts BCC on the braking controller. When the contactor B operates on excess voltage the resistance 19 is short-circuited by auxiliary contacts BNO. Means may be provided to prevent operation of the contactor B upon the occurrence of over-voltage during motoring.
GB8402/38A 1938-03-18 1938-03-18 Improvements in or relating to electric motor control systems Expired GB512333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8402/38A GB512333A (en) 1938-03-18 1938-03-18 Improvements in or relating to electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8402/38A GB512333A (en) 1938-03-18 1938-03-18 Improvements in or relating to electric motor control systems

Publications (1)

Publication Number Publication Date
GB512333A true GB512333A (en) 1939-09-01

Family

ID=9851851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8402/38A Expired GB512333A (en) 1938-03-18 1938-03-18 Improvements in or relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB512333A (en)

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