Westerbeke 10.0 EGTD Operator's Manual page 39

GENERATOR VOLTAGE ADJUSTMENT
NOTE:. WESTERBEKE recommends that the following generator
tests and adjustments be perfonned
by
a quailified technician.
Generator Frequency
1. Frequency is a direct result of engine/ generator speed:
1800 rpm::: 60 hertz
1500 rpm = 50 hertz.
2.
To
change generator frequency follow the steps below.
a. Connect the AC output leads to the AC terminal block,
following the illustrations on this page.
b. If an AVR is installed, reposition the blue or blue/white
lead to correspond to the hertz selected on the
Voltage/Hertz Connection Bar.
If
there
is
no automatic voltage regulator (A VR
installed, do not change the wiring on the
Voltage/Hertz Connection Bar.
Simply
reconfigure the
AC
tenninal
for the hertz change.
c. Start the engine, monitor voltage and adjust engine
no-load speed. Adjust diesel units by the linkage
between the throttle arm and fuel solenoid or the
throttle lever on the injection pump ..
60 hertz:. no-load speed, 61.5- 62.0 hertz.
50 hertz: no-load speed, 51.5- 52.0 hertz.
d. After the no-load hertz adjustment is made, lhe no-load
voltage may need to be readjusted: In most cases, if the
generator was producing the correct no-load voltage at
the previous hertz setting, it would be correct at the
changed hertz setting.
In the event it n.eeds adjustment, adjust the shim thick-
ness under the laminated steel bar of the transformer.
60 hertz: no-load voltage, 121-124 volts.
50 hertz: no-load voltage, 232-236 volts.
e. Load the generator to the rated amperage output
corresponding to the hertz speed of the generator.
Rated Loaded Speed
60 hertz: loaded speed, 58.5- 59.0 hertz
50 hertz: loaded speed, 48.5- 49.0 hertz
The lowest acceptable voltage at full rated output
(amps)
60 hertz: 108 - 110 volts
50 hertz: 205 - 210 volts
SIX STUD AC VOLTAGE CONNECTIONS
115V 50Hz
@ @
The frame ground wire must
· be moved when changing
from 115 voHs and 1101220
volts 50 hertz
to
230 volts
50 hertz. From making con·
nectlons to the AC tennlnal
block. use tennlnal ends for .
1/4 Inch studs that wiR
accept multl-strand copper
wire
sized
for the amperage
mting from the hot lead con·
nectlon. ihe frame
ground
wire is whHe or white with a
· green strip. It connects
between the neutral stud
and the generator frame.
•I
230V50Hz
·®
@
~-
120V 60HZ
TWELVE STUD AC VOLTAGE CONNECTIONS
115V50Hz
o=D
o·
7
~
0
l1
CIRCUIT
BREAKER
Z30V50Hz
0::::::0 0
6 6 ~
b 8
N l1
OJ
33
••I
1201160 Hz
0 0::::::0
\J~MPERIS
REQU!RED
120/240V &OHZ
120J240V/60Hz
L1
L2