- 53 -
6-2
Parallel
operation
(1)
Turn
off
the
breakers
on
the
load
side.
(2)
Start
engine
and
keep
it
in
warming
up.
(3)
Equalize
all
the
voltages
and
frequencies
on
the
units
by
adjusting
the
voltage
regulator
and the speed regulator.
(4)
First
turn
on
the
circuit
breaker
on
the
No.1
generating
set.
(5)
Adjust
the
speed regulator
on
the
No.2
set
so
that
the
two
synchronizing
lamp
on
the
No.2
set
turn
on
and
off
at the same time
when
the
two
phase
sequences
are
in
the
same
direction,
while
the
two
turn
on
and
off
alternately
when
the
sequences
are
in
the
different
direction.
In
case
the
two
lamps
turn
on
and
off
alternately,
recheck
the
cable
connections
for
correct
phase
sequence.
(6)
At
the
instance
when
the
synchronizing
lamps
on No.2 set turn
off,
turn
the
No.2
set
breaker on
.
[Note]
The
generators
can
be
damaged
due
to
short circuit
current
if
the
breaker
is
turned
on
when
the
synchronizing
lamps are still on.
(7)
Upon
the
above
procedure,
the
No.1
and
No.2
sets
are
in
parallel
operation.
The
AC
ammeters
are
supposed
to
indicate
zero
in
this
no
load
condition.
If the
meters
indicate
some
current,
it
is
an
uneffective
cross
current
due
to
voltage
difference.
Make
it
zero
by
adjusting
the
voltage
regulator.
Summary of Contents for DCA-150LSKE
Page 2: ...Japan...
Page 18: ...14 16 environmental base fluid level warning lamp...
Page 55: ...51 When the single parallel change over switch is parallel side device acts...
Page 93: ...89 12 2 Outline drawing...
Page 94: ...90 12 3 Generator connection diagram...
Page 95: ...91 12 4 Engine wiring diagram...
Page 96: ...92 12 5 Controller wiring diagram...
Page 101: ...97...
