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POWER REQUIREMENTS
It
is
recommended
that
the
power
source be 208
volts
or 230
volts,
three-phase,
60 cycles
per
second;
however,
certain
units
can be operated
from
a
single -phase,
208
volt
or 230
volt
source
of
power.
Complete breakdown
of
KVA
and current by
unit
and
features
is
shown
in
KVA
and Current Requirements Chart
found on
page
29
Permissible Variations
for
650 Basic
System
Voltage
-
Source
voltage
may
have
a
total
variation
of
±
10%
of the
rated
voltage,
including transient
and
steady
state
Frequency
-
The
line
frequency
must
be 60
cycles
per
second,
±1/2
cycle
per
second.
Permissible Variations
for
650
System
with
Magnetic
Tape
and/or Disk
S
to
rage
Voltage
-
Source
voltage
may
have
a
total
variation
of
±
8%
of the
rated
voltage,
including transient
and
steady
state
Frequency
-
The
line
frequency
must
be
60 cycles
per
second,
±
1/2 cycle per
second.
28
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