GB745845A - Improvements in or relating to protective arrangements for electric motor control systems - Google Patents

Improvements in or relating to protective arrangements for electric motor control systems

Info

Publication number
GB745845A
GB745845A GB20657/53A GB2065753A GB745845A GB 745845 A GB745845 A GB 745845A GB 20657/53 A GB20657/53 A GB 20657/53A GB 2065753 A GB2065753 A GB 2065753A GB 745845 A GB745845 A GB 745845A
Authority
GB
United Kingdom
Prior art keywords
relay
coil
drum
contactor
motor
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
GB20657/53A
Inventor
Harry Wolstenholme
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB20657/53A priority Critical patent/GB745845A/en
Publication of GB745845A publication Critical patent/GB745845A/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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

745,845. Control of several D.C. motors. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. July 1, 1954 [July 24, 1953; Sept. 21. 1953], Nos. 20657/53 and 26023/53.. Class 38(3) Relates to a protective arrangement for a traction system in which a main motor MM has one or more auxiliary motors AM in parallel therewith and is connected to the supply through an individual contactor LS1, the speed of the main motor being governed by a master controller for progressively varying resistance in the motor circuit. When a reversing drum RD is moved to an operative position with a speed drum SD in its "off" position, a lowcurrent relay LCR is energized through its coil 8, and auxiliary relay AR closes contacts AR1. When the speed drum is moved to its first position, contactor coil LS becomes energized to close contacts LS1. Movement of the speed drum to a higher position causes the auxiliary relay to drop out but the contactor LS is held in by contacts LS2. The pick-up coil 8 is open-circuited in the higher positions of the drum SD, the relay LCR remaining closed, however, by virtue of motor current passing through coil 7. Upon failure of the supply voltage, relay LCR drops out to de-energize the main contactor, and. although the motor AM may act as a generator, no current passes through coil 7. to delay the opening of relay LCR. Re-establishment of the supply voltage may re-close the lowcurrent relay but the main contactor is' not closed until the drum SD is returned to its "off" or first position. In a modification, the auxiliary relay is given a delayed release characteristic and its operating coil is connected directly to the negative terminal of the low-tension supply.
GB20657/53A 1953-07-24 1953-07-24 Improvements in or relating to protective arrangements for electric motor control systems Expired GB745845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20657/53A GB745845A (en) 1953-07-24 1953-07-24 Improvements in or relating to protective arrangements for electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20657/53A GB745845A (en) 1953-07-24 1953-07-24 Improvements in or relating to protective arrangements for electric motor control systems

Publications (1)

Publication Number Publication Date
GB745845A true GB745845A (en) 1956-03-07

Family

ID=10149505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20657/53A Expired GB745845A (en) 1953-07-24 1953-07-24 Improvements in or relating to protective arrangements for electric motor control systems

Country Status (1)

Country Link
GB (1) GB745845A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109459973A (en) * 2018-11-16 2019-03-12 曹妃甸港集团股份有限公司 Walking conversion control circuit and control method under door machine machine
CN111114341A (en) * 2018-11-01 2020-05-08 西安中车永电捷通电气有限公司 Stop control system for railway vehicle and railway vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111114341A (en) * 2018-11-01 2020-05-08 西安中车永电捷通电气有限公司 Stop control system for railway vehicle and railway vehicle
CN111114341B (en) * 2018-11-01 2023-09-19 西安中车永电捷通电气有限公司 Stop control system for railway vehicle and railway vehicle
CN109459973A (en) * 2018-11-16 2019-03-12 曹妃甸港集团股份有限公司 Walking conversion control circuit and control method under door machine machine

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