GB857332A - Improvements relating to electric load-supplying apparatus - Google Patents

Improvements relating to electric load-supplying apparatus

Info

Publication number
GB857332A
GB857332A GB2781856A GB2781856A GB857332A GB 857332 A GB857332 A GB 857332A GB 2781856 A GB2781856 A GB 2781856A GB 2781856 A GB2781856 A GB 2781856A GB 857332 A GB857332 A GB 857332A
Authority
GB
United Kingdom
Prior art keywords
motors
igniter
voltage applied
tapped
windings
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
GB2781856A
Inventor
Henry Bolton Calverley
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 GB2781856A priority Critical patent/GB857332A/en
Publication of GB857332A publication Critical patent/GB857332A/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
    • B60L9/02—Electric propulsion with power supply external to the vehicle using dc motors
    • B60L9/08—Electric propulsion with power supply external to the vehicle using dc motors fed from ac supply lines
    • B60L9/12—Electric propulsion with power supply external to the vehicle using dc motors fed from ac supply lines with static converters
    • 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

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

857,332. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. Dec. 5, 1957 [Sept. 12, 1956], No. 27848/56. Class 38 (3). [Also in Group XXXV] The direct voltage applied to a load such as motors M1, M2 from an A.C. supply 11 through electrode controlled rectifiers such as the bridge arrangement of ignitrons I1, I2, I3, I4, is varied by altering consecutively the control voltage applied to the rectifier electrodes and the alternating voltage applied to the rectifier anodes. When energizing the motors from the zero voltage position by moving a controller, an igniter pulse source 18 is so operated that the igniter pulses are advanced in phase to the maximum igniter voltage position, after which the controller varies the output of supply transformer 10 by operating on load tap changing mechanism. In the low voltage position tapped windings 10c, 10d buck the respective halves of centre-tapped winding 10b. The contactor successively operates contacts T1-T5 and TT1-TT5 in conjunction with the shorting contactors P, PP across auto transformers 13, 14 until the buck is zero. The contacts of change-over switches 15, 16 are then operated so that when further movement of the controller operates the tap switches, windings 10c, 10d boost winding 10b by an increasing amount. The tapped secondary windings 10c, 10d may be replaced by an induction regulator, and the rectifiers may be of the excitron type.
GB2781856A 1956-09-12 1956-09-12 Improvements relating to electric load-supplying apparatus Expired GB857332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2781856A GB857332A (en) 1956-09-12 1956-09-12 Improvements relating to electric load-supplying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2781856A GB857332A (en) 1956-09-12 1956-09-12 Improvements relating to electric load-supplying apparatus

Publications (1)

Publication Number Publication Date
GB857332A true GB857332A (en) 1960-12-29

Family

ID=10265794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2781856A Expired GB857332A (en) 1956-09-12 1956-09-12 Improvements relating to electric load-supplying apparatus

Country Status (1)

Country Link
GB (1) GB857332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244946B (en) * 1961-05-15 1967-07-20 Brentford Electric Ltd Step switching and control device for transformers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244946B (en) * 1961-05-15 1967-07-20 Brentford Electric Ltd Step switching and control device for transformers

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