University of Virginia Library

ELECTRICAL ENGINEERING LABORATORY.

The Scott Laboratory of Electrical Engineering.—This laboratory was
initially equipped and endowed by Mrs. Frances Branch Scott, of Richmond,
Va., as a memorial to her late son, an alumnus of this University.
During the year 1910 the equipment was substantially increased through
the generosity of the Hon. Charles R. Crane, of Chicago, Ill., a friend of
the University. During 1912 still further substantial additions were made,
consisting of measuring instruments, auxiliary control apparatus, and more
particularly a steam-turbine-driven three-phase alternating-current generator
with exciter and control switchboard.

In addition to full sets of electric meters with the appliances for testing
and calibrating them, galvanometers of the best modern types, standard
cells and resistances, standard condensers, and other pieces of apparatus
for minor tests, this laboratory contains numerous pieces of the very best
construction. Such are the Wolff potentiometer, the Seimens and Halske
Thomson double bridge, the Koepsel permeameter, the Station photometer
with Lummer-Brodhun screen, the Carey-Foster bridge and others. For
the work in machine-testing there are a number of direct-current generators
and motors, series, shunt and compound, interpole motors, a double current
generator, a two-phase alternator, a General Electric experimental test set
for alternating current, comprising a generator furnishing single, two, three,
six or twelve-phase current, and, in addition, offering three types of induction
motors with all necessary starting and controlling devices, a single-phase
repulsion motor, a two-phase induction motor, two three-phase induction
motors, several pairs of constant voltage transformers, a constant current
transformer, frequency meters, power factor indicator, synchronism indicator,
ground detector and the auxiliary apparatus used in testing these machines.
The laboratory has been arranged with a system of universal plug and

receptacle-connections to facilitate the setting up of all experimental combinations.

Additional equipment is now being installed which comprises a complete
three-element oscillograph set with necessary accessories, two direct
current motor generator sets with automatic push-button start and stop
control complete, and an experimental alternator test generator with complete
modern switchboard panel for its control as well as a motor to drive
it equipped with push-button start, reverse and stop control.