Westerbeke 8.0KW-60Hz Service Manual page 82

GENERATOR FREQUENCYNOLTAGE CHANGES
. .
GENERATOR
F~EQUE~CY
CHANGES (HERTZ)
1. Frequency is a direct result of engine/generator speed.
1800 rpm
=
60 Hertz
lSilo
rpm
=
50 Hertz
2. To change generator frequency, follow these steps below.
a. Reconfigure the AC output connections on the 6/12
stud terminal block following the illustrations below.
Install the correctly rated AC breaker for the Hertz
selected.
b. Properly connect the leads from the voltage sensing
board to the line connections on the AC breaker and
the neutral/ground to the brass neutral/ground stud in
the breaker box. When Druy one line is present, tie off
the unused line sense connection.
c. Note: On six stud AC models oruy when an optional
AVR is installed, reposition the blue/white lead to
correspond to the hertz selected on the voltage/hertz
connection bar.
d. Shut off the 20 amp DC panel breaker and move the
#1 dipswitch on the BCU to the proper position for the
hertz selected - ON for 50 hertz, OFF for 60 hertz.
Then
turn
the DC breaker back on.
e. Shut OFF the AC breaker and startihe unit. Monitor
the no,load AC voltage. If voltage adjustment is
needed, add or remove shim material from under the
laminated steel bar .of the q)mpound transforriter.
60 Hertz No-Load voltage 121-124yolts
50 Hertz No-Load voltage 232-236 volts
f. Close the AC
b~i.ker
and load the generater and .
monitor operation.
SIX STUD AC VOLTAG.ECONFIGURATIONS
115V 50Hz
230V 50Hz 120V 60Hz
120/24.0V
60Hz
0 ® Ll 2 5 N
'®
~
I-
1'3
\'§'
~ THE GROUND SHOWN ON THE
TERMINAL BLOCK IS INSIDE
TilE GENERATOR
BOX
N Ll
I~/"
1
~ li
U;
W'
:
~.
1
~I
~
~. :
~
I- ..
r-I~
~.
~.
LOAD
CONNECTION
115v 50Hz
a=o
0
®
(j)
®:
®j'
'I~
,
0
N
L
rJ
_w·
:::'1<::-'
u~1
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-~
u~.
1
:
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:
1:-
.. ~I
LOAI)
CONNECTION
~
~
u
~
u
N
LI
I-L
=-1
I
~~
~
:)
_w
lHE GROUND SHOWN ON THE ~~
u~
W'
: TERM I NAl BLOCK t
s.
I NS I DE
~w
~.
1
THE" GENERATOR BOX
-~
u~
~
~I
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~
,.
1-
"'I-I~
11
. LOAD .
~ 111'w~HT ~1~9.: -§:~
..
121118
LOAD
CONNECTION
WHEN WIRING_I,OV/50Hz,
LOAD
l~ri!!'K~~.~=~-~. ~3J'K~
COI'INECT ION
==
CONNECT I ON
L
tf~k'
_
A JUMPER IS REQUIRED BETWEEN
LOAD CONNECTIONS.
TWELVE STUD AC VOLTAGE CONFIGURATIONS
230v 50Hz
=
0
®
(j)
®
®
=
lo:::J'
.... N
U
rJ
If.·
"1
- w '
:
~~.
u<
1
1
~w
-~
u~
•
:
I- ..
I-I~
120v 60Hz
o
a=o
N
2
@
®
® 0
L, L,
T
T
HE GROUND SHOWN ON THE
l"i7q7fj
TERMINAL BLOCK IS INSIDE;
_r~
.
I-'-'+"~
HE GENERATOR "BOX ~
! =>:0: •
I - :
~~ 1
~ ;~u~ ~B;~
120/240v 60Hz 0=
,~
(j)
/ ® ®
N
(j)
i@
~
L,
L2
~
"
1
1
'4
:
:
1
1
:
:
1- .. f-I
~
:::~
THE GROUND SHOWN ON THE
TERMINAL BLOCK IS INSIDE
THE GENERATOR
BOX
LOAI)
CONNECTION
~
BLK
-
:::
LOAD
a:::r
CONNECTION
;;;
11m]
~
LOAD
~
lo:=~·ol
I!n
CONNECTION
!
WHEN WIRING 120V/60Hz.
A JUMPER IS REQUIRED BETWEEN
LOAD CONNECTIONS.
Engines &'Generators
. 76 .
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