GB1085508A - Improvements in or relating to three-phase current conveying machines - Google Patents

Improvements in or relating to three-phase current conveying machines

Info

Publication number
GB1085508A
GB1085508A GB840766A GB840766A GB1085508A GB 1085508 A GB1085508 A GB 1085508A GB 840766 A GB840766 A GB 840766A GB 840766 A GB840766 A GB 840766A GB 1085508 A GB1085508 A GB 1085508A
Authority
GB
United Kingdom
Prior art keywords
rotor
cage
motor
stator
transmitter
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
GB840766A
Inventor
Klaus Gunther
Hans Kuhn
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.)
STARKSTROM ANLAGENBAU ERFURT
Original Assignee
STARKSTROM ANLAGENBAU ERFURT
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 STARKSTROM ANLAGENBAU ERFURT filed Critical STARKSTROM ANLAGENBAU ERFURT
Priority to GB840766A priority Critical patent/GB1085508A/en
Publication of GB1085508A publication Critical patent/GB1085508A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/44—Means for stopping the cars, cages, or skips at predetermined levels and for taking account of disturbance factors, e.g. variation of load weight

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

1,085,508. Control of A.G. motors. STARKSTROM - ANLAGENBAU ERFURT VEB. Feb. 25, 1966, No. 8407/66. Heading H2J. [Also in Division G3] A three-phase motor 1 drives cage 6 at a loaddependent speed which is detected by a measurement section defined by shaft limit-switches 7, a pulse counter 8 determining the time during which the cage travels through the section. The counter 8 is associated with a reference device 9 for adjusting the value of rotor resistance 4 which is not in circuit when the measurement is effected, a transmitter 10 providing feedback representing the actual value of the resistance. The motor is retarded by supplying its stator with direct-current from transmitter 11, the rotor being short-circuited. The braking current is controlled by comparing an actual deceleration signal from detector 12 with a reference signal from integrator 13. At the end of the retardation period, the motor is driven at creep speed by re-connecting its stator to the A.C. source, and its rotor to the resistor 4 which has been adjusted in accordance with the load, as described, to ensure accurate stopping ofthe cage.
GB840766A 1966-02-25 1966-02-25 Improvements in or relating to three-phase current conveying machines Expired GB1085508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB840766A GB1085508A (en) 1966-02-25 1966-02-25 Improvements in or relating to three-phase current conveying machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB840766A GB1085508A (en) 1966-02-25 1966-02-25 Improvements in or relating to three-phase current conveying machines

Publications (1)

Publication Number Publication Date
GB1085508A true GB1085508A (en) 1967-10-04

Family

ID=9851943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB840766A Expired GB1085508A (en) 1966-02-25 1966-02-25 Improvements in or relating to three-phase current conveying machines

Country Status (1)

Country Link
GB (1) GB1085508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002135A1 (en) * 1979-04-05 1980-10-16 Otis Elevator Co Modified slowdown and braking of an elevator car

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002135A1 (en) * 1979-04-05 1980-10-16 Otis Elevator Co Modified slowdown and braking of an elevator car
EP0026218A1 (en) * 1979-04-05 1981-04-08 Otis Elevator Co Modified slowdown and braking of an elevator car.
EP0026218A4 (en) * 1979-04-05 1981-11-25 Otis Elevator Co Modified slowdown and braking of an elevator car.

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