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ELEVATOR CONTROL CIRCUIT

UNIVERSITY OF NAIROBI PROJECT TITLE: ELEVATOR CONTROL CIRCUIT PROJECT INDEX: PRJ 045 BY: NAME: MASILA JANE MWELU REG. NUMBER: F17/10455/2003 SUPERVISOR: PROF. MWANGI EXAMINER: DR. MANG OLI Project report submitted in partial fulfillment of the requirement for the award of the degree of Bachelor of Science in Electrical and Electronic Engineering of the University of Nairobi 20th May, 2009 Department of Electrical and Information Engineering ii Dedication To my loving family and friends iii Acknowledgments To the Lord Jesus; The source of all grac

• Gearless Geared versus gearless elevators • In geared elevators, the motor rotates the sheaves directly. • In gearless elevators, the motor turns a gear train that rotates the sheave. Roped elevators are much more efficient than hydraulic elevators, they also have more safety systems. 1.1.3 Elevator safety mechanism

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