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COMPLEMENTARY FLIGHT
MANUAL
4
GENERATOR CIRCUIT
.
The
generator
is
coupled
to
the
primary
distribution
bus
by
means
of
its
contactor
when
the
following
conditions
are
met
:
-electric
power
is
not
available
at
the
external
power
receptacle
-the
"MASTER SW" and
"CRANK"
push-buttons
are
released
-the
"GEN"
pushbutton
is
engaged
-the
generator
voltage
exceeds
the.
battery
voltage
by at
least
0.5
V.
The
generator
may be isolated
from
the
aircraft
power
system:
-manually:
.by
disengaging
the
"GEN"
push-button,
.by
pressing
the
"MASTER SW" and
"CRANK" push-buttons.
-automatically
if
:
.
.a
reverse
current
is
detected
from
the
battery
to
the
generator,
.a
ground
power
unit
is
connected,
..the
generator
voltage
exceeds
31.5
V.
A push-button
is
provided
to
attempt
resetting
of
the
generator.
When the
generator
is
isolated,
the
"GEN"
light
illuminates
on the
Caution-Advisory
Panel.
5
ELECTRICAL
SYSTEM CONTROL AND MONITORING
5.1
Controls
5.1.1
Console
Push-buttons
-"EXT
PWT BATT"
-"MASTER
SW"
-"CRANK"
-"GEN"
-"GENE
RESET"
.
5.1.2
Selectors
located
on the
instrument
panel
or
on the
overhead
panel
R
-ON/OFF
switch,
-Power
regulation
mode selector.
.
350
B3
7 .9
00-23
Page
3
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