Westerbeke 38B FOUR Návod k obsluze Strana 61
- Strana / 86
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
GENERAL
INFORMATION
AND
CARE
OF
THE
GENERATOR
Use
of
Electric Motors
The
power required to start
an
electric motor is considerably more
tban
is required to keep
it
running
after
it
is started. Some motors require much more current to start
tban
otbers. Split-phase (AC) motors
require more current to start, under certain circumstances,
tban
other types. They are commonly used
on
easy-starting loads, such
as
washing machines,
or
where loads are applied after
tbe
motor is started, such
as
small power tools. Because they require 5 to 7 times
as
much current to start
as
to run, tbeir use should
be
avoided, whenever possible,
if
tbe
electric motor is to be driven 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 witb the load connected to it. An electric motor connected
to
an
air
compressor, for example, will require more current
than
a motor to which no load is connected.
In
general,
tbe
current required to start
lI5-Volt
motors connected to medium starting loads will be
approximately
as
follows:
MOTOR
SIZE
(HP)
lI6
1/4
1/3
lI2
3/4
AMPS
FOR
RUNNING
(Amperes)
3.2
4.6
5.2
7.2
10.2
13
AMPS
FOR
STARTING
(Amperes)
6.4 to
22.4'
9.2
to
32.2'
10.4 to
72.8'
14.4 to 29.2
20.4 to 40.8
26 to 52
'NOTE:
In
tbe
above table
the
maximum"
Amps for Starting" is more for some small motors
tban
for larger ones.
The
reason for this is that the hardest starting types (split-phase) are no
made
in
larger sizes.
Because tbe heavy surge
of
current needed for starting motors is required for only
an
instant,
tbe
generator
will not
be
damaged
if
it
can
bring
tbe
motor up to speed
in
a few seconds.
If
difficulty is experienced
in
starting motors,
tum
off
all otber electrical loads and,
if
possible, reduce tbe load
on
the
electric motor.
Required Operating
Speed
A1tbough individual units
may
vary slightly,
the
normal voltage
and
frequency
of
typical 60-(50-)Hertz
engine-driven generators described in
tbis
manual are approximately
as
follows:
run
first
witb
no
load
applied,
tben
at
half
tbe generator's capacity,
and
finally loaded to its full capacity
as
indicated
on
tbe
generator's
data
plate.
See tbe rpmlHertzlfrequency chart
on
tbe
next page.
57
WESTERBEKE
GENERATORS
- WESTERBEKE 1
- • Avoid Moving Parts 4
- FOREWORD 6
- 'c~~ 7
- 5 WESTERBEKE GENERATORS 9
- Shut~off 11
- Dimensions 13
- BTD SYSTEM 14
- ELECTRICAL 15
- ACGENERATOR 15
- EMISSION CONTROL SYSTEMS 16
- CAUTION 17
- Lifting 18
- Rigging 18
- I WARNING I 20
- 21
- /Exhaust 21
- ~===14f.;;;1 22
- #037401 23
- Fl...ANGE 23
- WARNING 27
- WESTERBEKE GENERATORS 24 28
- PREHERT 29
- GENERRTOR 29
- I ' 30
- " 31
- JJ.I,.--SHAFT 32
- PREPARATION 33
- STARTING 33
- WESTERBEKE GENERATORS 38
- ~2' 40
- ---'~ 41
- Battery Specification 42
- 0" 43
- :,'( 44
- '''-'j 45
- W SWITCH 46
- Fresh Water Circuit 47
- FUNCTION 48
- MANIFOLD 48
- PRESSURE 48
- REPLACE 50
- SCREWORIVER 51
- "A"nAA'" 52
- I' 53
- ;' 53
- 'l'..J 54
- BT GENERATOR 55
- Securing 56
- : , Btl 57
- Generator Frequency 58
- Load Connections 58
- WESTERBEKE GENERATORS 54 58
- '-1 59
- ~' 60
- An electric motor connected 61
- 59 WESTERBEKE GENERATORS 63
- 3. Check that 64
- * ) are recommended to be 67
- * ) should be performed 68
- A®~f"t4a;::;r 69
- Timing mark 70
- DELIYEiY 71
- DELIVERY 71
- Adjustments (Generator) 72
- Generator 72
- Frequency Adjustment (Hertz) 72
- #037100 73
- #034569 73
- Starter 76
- Cylinder Lubrication 76
- 'U 77
- ± 10/0 kglcm 79
- ± 140/0) 79
- An impeller kit 80
- A starter 80
- ,"' 83
- TII_IlM_ 83
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