Electromagnetic engines, or motors, are machines in which the motive power is derived from electric currents by means of their electromagnetic action. The following design is for a 1½ K.W. bi-polar motor.
The rapid advancement of electrical science has led it to invade
the field of marine engineering. On ship-board, all ship's lights,
search lights and signal lights are entirely electric. Of power appliances
outside of uses on men of war,ship's ventilation is completely
electric; electric deck winches and boat cranes are...
A storage battery is a cell. or a series of cells capable of storing up electric energy and giving it off at a required time. A storage battery acts upon the same principle as a galvanic cell in giving forth electric current as the equivalent of chemical energy, but it...
One of the most important and likewise practical problems that oonfront
the Electrioal Engineers of the present daysis the design and the
construotion of Hydro Electrio Power plants for the generating of electrioal
energy,both for power and li;hting purposes. In order that we
might become better acquainted with the facts...
By way of preface, a few words may be said regarding the advantages of the revolving field type of machine.
The first in its favor and the chief reason for its
existence, is that by passing the heavy armature current
through permanent stationary contacts and only the small
field current...
In order that the proper motor for a given service
may be chosen it becomes necessary to study and know
the requirements and characteristics of the machine which
may be used for that purpose. When these are known the
selection of that one which is best adapted for the use...