is to issue a directive for the
What size generator or combination of
installation of a generator which will
you distribute the loads?
Which of the generators of
table 4 would you select and what sort
of lighting would you recommend be
service and to permit repair of units,
should be selected:
lighting load as this, the smallest
generator available should be used,
(1) 3-10KW 3 120/208V
namely, the 0.15 KW, 60-cycle, 120-
Its capacity is 150 watts
(2) 1-15KW 3 120/208V
which should satisfy the commander's
needs by providing power for either of
1-10KW 3 120/208V
the following lighting arrangements:
1-5KW 3 120-208V
(1) One 150 watt bulb.
(3) 2-15KW 3 120-208V
(2) Two 75 watt bulbs.
Combination (2) would be difficult to
In hooking up these lights, however,
operate if the full load had to be
it should be emphasized that a series
circuit will not do because then the
down for repairs (par 10b(2)) while
lights would not develop their rated
wattage and so would burn dimly.
inefficient (par 10b(3)). Combination
parallel circuit must be used in
(1) would probably be the best choice.
setting up the lights.
a constant 120 volts across each lamp.
13. GENERATOR LOCATION
It is common practice to locate
provide power for a company operating
away from your battalion.
load has been estimated as follows:
maintenance shops, etc.) in order
of wire required.
map on which demands are plotted.
1 0.6KW 120V
barracks may be served by generators
at distances up to 1,500 feet in
3 Messhall and
wire length and moderate demands, up
1 4.0KW 120V
to 1,000 feet. If tentative generator
1 0.4KW 120V
4 Orderly room
too far apart, they may be shifted.
1 0.5KW 120V
5 Supply room
road and on firm ground.
foundation should be provided for
semipermanent generator installations
3 4.0KW 208V
6 Shop (power)
where size is 30KW or larger.
safety measure, the generator site
1 1.0KW 120V
7 Shop (lighting)
should not be placed near storage