Westerbeke 12.0KW - 50Hz EDT Manuel d'installation Page 44
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- DEPANNAGE
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Noté. / 5. Basé sur avis des utilisateurs
GENERATOR
INFORMATION
USE
OF
ELECTRIC
MOTORS
The
power required to start an electric
motor
is considerably
more than is required to keep it running after
it
is started.
Some
motors require
much
more current to start them than
others. Split-phase (AC) motors require
more
current to start,
under similar circumstances, than other types. They are
commonly used on easy-starting loads, such as washing
machines, or where loads are applied after the motor is
started, such as small
power
tools. Because they require 5
to
7 times as much current to start as to run, their use should be
avoided, whenever possible,
if
the electric motor is to
be
dri-
ven by a small generator. Capacitor and repulsion-induction
motors require from 2 to 4 times as
much
current to start as
to run.
The
current required to start any motor varies with the
load connected to it. An electIic motor connected to an air
compressor, for example, will require
more
current than a
motor
to
which no load is connected.
In general, the current required
to
start 115-Volt motors con-
nected to medium starting loads will be approximately as
follows:
MOTOR
SIZE
AMPS
FOR
AMPS
FOR
(HP)
RUNNING
STARTIN~)
{AMPERES}
(AMPERES
116
3.2
6.4
to
22.4*
1---_1!4
4.6
9.2
to
32.2'
1/3
5.2
10.4
to
72.S·
1/2
7.2
14.4
to
29.2*
3/4
10.2
20.4
to
40.S
*
1
13
26
to
52
*NOTE:
In the above table the maximum Amps for Starting is
more for some small motors than
for
larger ones. The reason
for
this
is
that the hardest starting types (split-phase) are not
made
in
larger sizes.
Because the heavy surge
of
current needed for statting
motors is required for only an instant, the generator will not
be damaged
if
it can bring the motor
up
to speed in a few
seconds.
If
difficulty is experienced
in
statting motors, turn
off all other electrical loads and,
if
possible, reduce the load
on the electric motor.
REQUIRED
OPERATING
SPEED
Run the generator first with no load applied, then
at
half
the
generator's capacity, and finally loaded to its full capacity as
indicted on the generator's data plate.
The
output voltage
should be checked periodically to ensure proper operation
of
the generating plant and the appliances it supplies.
If
an
AC
voltmeter
or
ampmeter is not installed to monitor voltage and
load. check it with a portable meter and amprobe.
NOTE:
When the vessel in which the generator is installed
contains
AC
equipment
of
120 volts only, it is recommended
that the generator's
AC
terminal block be configured to pro-
vide one
120 volt
AC
hot leg
for
the vessel's distribution
panel. This will ensure good motor starting response from the
generator.
GENERATOR
FREQUENCY
ADJUSTMENT
Frequency is a direct result
of
engine/generator speed, as
indicated by
the
following:
• When the generator is run
at
1800 tpm, the
AC
voltage
output frequency is
60
Hertz.
•
When
the generator is run
at
1500 tpm, the AC voltage
output frequency is
50
Hertz.
Therefore, to change the generator's frequency/voltage, the
generator's drive engine's speed must
be
changed using the
dipswitch on the
ECU.
The
AC
output configuration
of
the
generator changed and the connections
on
the voltage
sensing
PC
board changed.
GENERATOR
MAINTENANCE
• Maintaining reasonable cleanliness is important.
Connections
of
terminal boards and rectifiers may become
corroded, and insulation surfaces
may
start conducting
if
salts, dust, engine exhaust, carbon, etc. are allowed to
build up. Clogged ventilation openings may cause exces-
sive heating
and
reduced life
of
windings.
•
For
unusually severe conditions, thin rust-inhibiting
petroleum-base coatings should be sprayed
or
brushed
over all surfaces to reduce rusting and corrosion.
• In addition to periodic cleaning, the generator should be
inspected for tightness
of
all connections, evidence
of
overheated terminals and loose
or
damaged wires.
•
The
drive discs
on
single bearing generators should be
checked periodically
if
possible for tightness
of
screws
and for any evidence
of
incipient cracking failure. Discs
should not
be
allowed to become rusty because rust may
accelerate cracking. The bolts
which fasten the drive disc
to the generator shaft must
be
hardened steel SAB grade
8,
identified by 6 radial marks, one at each
of
the 6 cor-
ners
of
the head.
•
The
rear armature bearing is lubricated and sealed; no
maintenance is required. However,
if
the bearing becomes
noisy
or
rough-sounding, have
it
replaced.
• Examine bearing at periodic intervals.
No
side movement
of
shaft should
be
detected when force is applied.
If
side
motion is detectable, inspect the bearing and shaft for
wear. Repair
must
be
made
quickly or major components
will rub and cause major
damage
to generator.
Carbon
Monoxide
Detector
WESTERBEKE
recommends mounting a carbon
monoxide detector
in
the vessels living quarters.
Carbon
monoxide,
even
in
small
amounts,
is deadly.
The
presence
of
carbon monoxide indicates
an
exhaust
leak:
from the engine or generator
or
from the exhaust
elbow/exhaust hose, or that fumes from a nearby vessel
are entering your boat.
If
carbon monoxide is present, ventilate the area with
clean air and correct the problem immediately!
Engines
& Generators
37
- OPERATORS 1
- CALIFORNIA 2
- PROPOSITION 2
- WARNING 2
- WARNING: 2
- INSTRUCTIONS 3
- Engines & Generators 4
- INSTALLATION 6
- CONTENTS 7
- INTRODUCTION 9
- #43400 provides detailed 10
- ~OOLANT 11
- DIGITAL 12
- CONTROL 12
- ~'.5~ 14
- OIPSTICK~ 15
- \\~PPROXIMATELY 15
- PROCEDURE 16
- STARTING 16
- SHUTDOWN 17
- SWITCHES 17
- BREAK-IN 18
- PROCEDURE/DAILY 18
- OPERATION 18
- MAINTENANCE 19
- SCHEDULE 19
- 10 disconnect the DC power 20
- COOLING 21
- ~COOlANT 22
- SILENCER 24
- Changing/cleaning 25
- LUBRICATING 26
- PRESSURE 27
- (OPTIONAL) 28
- TROUBLESHOOTING 29
- CYLINDER 32
- ADJUSTMENTS 33
- INJECTOR 33
- INJECTORS 34
- ~~I:lt~ 35
- DESCRIPTION 36
- INSPECTION 36
- TESTING 36
- STARTER 37
- (I~'s) 39
- ,"/ 40
- ALTERNATORS 41
- TESTINGJTROUBLESHOOTING 41
- & Generators 42
- GENERATOR 44
- INFORMATION 44
- 1.:!:.!_aS(J! 46
- PfiiL-J 47
- VOLTAGE 48
- ADJUSTMENT 48
- <-ir 49
- Stability 50
- INTERNAL 51
- Description 52
- ,.----11 53
- D 3 Transformer 54
- + 5 - a 55
- Hertz (.60%) 56
- 12.6KW - 60 57
- 10.4KW - 50 Hertz 57
- RECOMMISSIONING 60
- SYSTEMS 62
- DISCHARGE 63
- Pounds~Force 64
- (in~lb) 64
- REVrSED 66
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