Winco AVC63-4A - Manual (Page 2)

Publication
9285800991
Revision
C
Instructions
Date
09/12
Page
2 of 4
For terms of service relating to this product and software, see the Commercial Terms of Products and Services document available at www.basler.com/terms .
FUSES
The AVC63-4A is protected by an internal fuse illustrated in
Figure 1. A spare fuse, mounted on the back of the internal
fuse, is provided with the AVC63-4A.
To protect your wiring from faults before the regulator,
fuses with high interruption capability should be installed
according to the interconnection diagrams (Figure 4, Figure
5, and Figure 6).
OPERATING PROCEDURES
Caution
Meggers and high-potential test equipment must
not be used. Incorrect use of such equipment could
damage the regulator.
The following procedures provide instructions for adjusting
the AVC63-4A. Certain generator system problems are
included along with suggested solutions.
Complete the Preliminary Setup procedure before
proceeding with the System Startup procedure.
Preliminary Setup
1. Verify that the AVC63-4A specifications conform to the
requirements of the generator system.
2. Configure the regulator connections as follows:
a. If a remote voltage adjust rheostat will not be
used, ensure that regulator terminals 6 and 7
are shorted with a jumper.
b. If a 55 Hz corner frequency for a 60 Hz
system is desired, ensure that terminals HZ1
and HZ2 are open. If a 45 Hz corner
frequency for a 50 Hz system is desired, short
terminals HZ1 and HZ2 with a jumper.
c. For 120 Vac nominal sensing, ensure that
terminals V1 and V2 are open. For 240 Vac
sensing, short terminals V1 and V2 with a
jumper.
3. Ensure that the AVC63-4A is connected to the
generator system correctly. Connections for typical
AVC63-4A applications are shown in Figure 4, Figure
5, and Figure 6.
4. Install the fuses as described in Fuses.
5. Adjust the AVC63-4A VOLT ADJ control fully
counterclockwise. If a remote voltage adjust rheostat is
used, adjust it to the center of its rotation.
System Startup
Note
The Preliminary Setup procedure must be
performed before proceeding with system startup.
All voltage readings are to be taken with an
average reading voltmeter.
1. Start the generator and bring it up to its rated speed.
Result: Voltage should build up. If it does not, perform field
flashing.
2. Slowly adjust the AVC63-4A VOLT ADJ clockwise until
the generator output voltage reaches the nominal
value. If used, adjust the remote voltage adjust
rheostat to set the generator voltage to the desired
level.
Result: Voltage should build to the rated value. If the
voltage does not build to the rated value, check the
generator for a short-circuit or excessive load.
3. Check regulator operation under normal operating and
loading conditions.
Result: Voltage regulation should be better than ±1.0%
over the range of no-load to full-load. Voltage reduction
under load may be due to a speed change from no-load to
full-load. This may cause the frequency compensation
circuit to reduce the voltage at lower frequencies.
OPERATIONAL TEST
1. Connect the AVC63-4A as shown in Figure 7 but do
not apply power yet. Ensure that the light bulb is rated
for 120 Vac and less than 100 W.
2. Adjust the AVC63-4A VOLT ADJ control and/or remote
voltage adjust rheostat fully counterclockwise. Adjust
the AVC63-4A STAB control fully counterclockwise.
3. Apply 120 Vac, 50/60 Hz power to the AVC63-4A. The
light bulb should be off.
4. Slowly adjust the AVC63-4A VOLT ADJ control
clockwise. At the regulation point, the light bulb should
illuminate. Small adjustments above and below this
level should cause the light bulb to turn off and on.
Note that the light bulb turns on and off rapidly.
5. Rotate the STAB ADJ control fully clockwise. Now
adjust the VOLT ADJ control above and below the
regulation point. The light bulb should still turn off and
on, but the transition from off to on and on to off should
be much slower.
DRAWING NOTES
The following notes apply to the interconnection diagrams
(Figure 4, Figure 5, and Figure 6) and the operational test
diagram (Figure 7).
1. If an external rheostat is not used, short terminals 6
and 7.
2. Short terminals HZ1 and HZ2 for 50 Hz operation and
leave terminals HZ1 and HZ2 open for 60 Hz
operation.
3. Item is not supplied by Basler Electric.
4. For 120 Vac nominal sensing voltage, make no
connection to terminals V1 and V2. For 240 Vac
nominal sensing voltage, short terminals V1 and V2
together.
5. Select fuses with a high interrupting capacity. If a
glass-type fuse is used, enclose it for safety.