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Siemens 1FC6 Betriebsanleitung Seite 44

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Al
te
enre
r9
The
a
I
ter
a
tors
I
FC4
1il4
rv dipspl
sctc.
to
1FC4 254,
(no
parallel
un
1t
,
llhich
at'r:
usu.rl
opera t
i
on
)
a
re
ly
only
used for'
not
equ
i
pped
f/ilh
curren
conrpensatron
ators
I
or.r
can be operated
v/11.h
lhe
tlre rated
v.rl
ue
but
only
alternator
tn a
de-exc
brea
ker
open
a1:
i
t.ed
condi
tion.
transl
I.1
10.2
Synchronous
ternators
vol ta
ge
regu
I
ors
and
The
transistori
s
ta
tor
r.rindinq.
1.1.11
1fC4 1B4
to
lFC4 316
with
current
boosti ng
circui
I
s
tori
z
ed
vol
ldqe
rerlul
a
t-or
i
s
suppl
i
t:d
fronr
a
tappinq r:n
l-he
l'he
field
wincling
o
the
exc
i
l.er
is
split.
i
l'2
i
s
suppl
ieLl
t
hro
h
Ihe voltaqc
feqLllal.o
1-h
rouq
h the
load
prolr
t.i
onrr
I
branch current
pt.ising a
curren{. tran
ornrcr and
recti fi
er
Morn
ollermlor
-.
-
The
section
of
vri
r
ancl
sc.ction
2F1
boos l:i
nq
cj
rcui
L
(sec
diagranr).
?F2
:
c
olll-
Sche.nol,c
d;cgrom
o{
o
syncMorous
olleFolo'
w,rh
lra^s
requtolor
ond
curenl
boosting circud {lFCLl
A.' I
ms'slu,izea
vcllog€
regu,c(or
RJ
Fe{
!o'ie
{exiernoL
)
A3
Currenl
cornp€nsotron
lnrl
T1-Tl
Clrrenl
R
olof
are supplled
with
d
danper
allernalor to
anothel' or)
board
this
tirre
any
of
the alternators.
with
any oLher and
also
v/ith
Parallel
opera Ljon
Al
1 rrrarine-type
sync
hronous
al
ternators
vrjndjnq
for
pa
ra
11e1
operalion.
The
tittte
t.rken
t0
change
over
fronr
0ne
shi
p
is
usua l
ly
very
s
hort,
and durinq
regardless
of
type,
nay run
in
para11e1
others
of
dj
fferent
nranufagture.
The
sharing
of
povrer
'load
(kilov/atts)
on
al
ternators
running
irr parallel
is
deternrined
by
the
governor
characteristjcs
of
the
prinre
movers.
Equal
sharing
of
the load
betr.reen
ind'ividual
ntachirtes
tvill
be achieved
if
the
governors
have
a straight-l ine characteristic
and equa1 droop.

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