NDLI: Electric Crane Controllers

Content Provider	IEEE Xplore Digital Library
Author	Schnabel, J. F.
Copyright Year	1884
Abstract	Other papers in the series one electrical apparatus for cranes deal with the requirements as to motors and auxiliary equipment; the latter comprising brakes, overload protective panels and limit switches. This paper on controllers reviews its subject in a general way, without going into any details of the devices employed, presenting a clear view of the fundamental considerations involved. The controlling apparatus of an electric crane is responsible for the prompt and proper accelerating of the several motions; their speed control; the safeguarding of the motors from abuse; the convenience and economy of operation; and the elimination of on these points but concerns himself chiefly with the character of the controllers best suited to the bridge, trolley and hoist under various conditions. The paper deals fully with the problems concerning the selection of ohmic values for the resistors and also covers very completely the connection arrangements and resistance values involved in the dynamic braking control of lowering loads.
Starting Page	317
Ending Page	324
Page Count	8
File Size	2082433
File Format	PDF
ISSN	00963860
Volume Number	XLI
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1922-01-01
Publisher Place	New York, U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cranes Friction Temperature control Acceleration Resistors Torque control Bridges Motion control Velocity control Heating
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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Electric crane controllers

Industrial Control: Heating of Shunt-Motor Starting Resistors

A New Electric Hoist Drive for Cranes

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Discussion on ``The Heating of Induction Motors.'' Frontenac, N. Y., June 28, 1909

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