Installation manual
THE
BE
GENERATOR
(EARLY
MODELS)
WITH
VOLTAGE
REGULATOR
#046446
DESCRIPTION
This generator is a four-pole, brushless, self-excited
generator which requires only the driving force
of
the engine
to produce AC output. The copper and laminated iron in the
exciter stator are responsible for the self-exciting feature
of
this generator. The magnetic field produced causes an AC
voltage to be induced into the related excitor rotor windings
during rotation. Diodes located in the exciter rotor rectify this
voltage to
D<;
and supply it to the windings
of
the rotating
field. This creates an electromagnetic field which rotates
.
through the windings
of
the main stator, inducing an
AC
voltage which is supplied to a load. An AC voltage is
produced in the auxiliary windings
of
the main stator and
is, in tum, supplied to a voltage regulator. The regulator
produces a DC voltage to further excite the exciter stator
windings, enabling the generator to produce a rated AC
output. The voltage regulator senses AC voltage output and
adjusts DC excitation to the exciter stator winding according
to amperage load the generator is furnishing.
To
maintain a
constant voltage output.
Voltage
Adjustments
This potentiometer is used to adjust output voltage. At proper
engine operating speed the output voltage should be held at
± 2% from a no-load condition to a full rated generator
output and from power factot
LO
with engine drive speed
variations up to .5Hz
(1%
).
With the alternator mnning at no-load, at normal speed, and
with
VOLT
adjust at minimum, it is possible that output volt-
age will oscillate.
Slowly rotate the
VOLT
adjustment clock-
w~se.
The voltage output
of
the alternator will increase and
stabilize. Increase the voltage to the desired value.
Once the generator has
been
placed into operation and as
break-in is/has taken place. A no-load
AC
voltage adjustment
maybe needed along
with
a
"GAIN"
adjustment. See voltage
adjustment and
ECU
adjustments in this manual
r----
---
-
----------GENERATOR
---
--
-·-
---
---.
!EXCITERr----
--'-ROTOR--~
r-
--'----STATOR-~-,
l
I
STATOR
1
I :
AC
OUTPUT
WINDINGS
2
1
I
\122
i +
l,f
I
_..,
~
!II
.il
I
_ _
AC
OUTPUT
WINDINGS
1 1
1 1 1 --+-V12
V21
I I I
V11
L---:-
----
__
J
I_
_
________
.
__
_.J
I
GENERATOR
INTERNAL
WIRING
DIAGRAM
AUTOMATIC
VOLTAGE
REGULATOR
(AVR)
_______
_;_
________
J
1-----+U1
~--~U2
ISOLATOR
POSTS
7
F2
(WHITE)
F1
(REO)
AVR
CONNECTIONS
60HZ
-120
VOLTS
U1;
V11
60HZ
-120/240
VOLTS
U.1;
V11
50HZ-
230
VOLTS
U~
;
V12
AVR
CONNECTIONS
60HZ
-120
VOLTS
T3;
T5
60HZ
-120/240
VOLTS
T2;
T4
50HZ-
230
VOLTS
T2;
T4
CONTROL
BOX
CONNECTION
BAR
Engines & Generators
44
AC
VOLTAGE
REGULATOR
(#046446)
~
VOLTAGE
D
UUSTMENT
WIRE
COLOR
CODE
T2-
YELLOW
T3-
ORANGE
T4
-LIGHT
GREEN
T5
-
LIGHT
RED
•
D