Basler Electric APR63-5 - Manual (Page 2)

this control. Observe the following guidelines when
adjusting the STAB control.
•
Counterclockwise rotation of the STAB control
reduces the voltage response time. If rotated
too far, the generator voltage will hunt
(oscillate).
•
Rotate the STAB control clockwise, just past
the point where voltage oscillation occurs.
VOLT
Observe the following guidelines when adjusting the
VOLT control.
•
Clockwise rotation of the VOLT control
increases the generator output voltage.
•
Replacing the jumper across terminals 6 and
7 with an external potentiometer (1,000
Ω,
2 W) gives a ±10% voltage adjustment range
with the nominal value set by the VOLT
control.
ACCESSORY EQUIPMENT
The following equipment is available as options to the
APR 63-5:
•
BE18674001 power isolation transformer
•
APM 2000 and CT for parallel compensation
•
MVC 300 for manual voltage control
•
CBS 305 Current Boost System
MOUNTING
The APR 63-5 can be mounted in any convenient
position and may be mounted directly on the
generator set. Figure 3 illustrates the mounting
dimensions. Use #11 (ANSI) or M5 (metric) mounting
hardware.
INTERCONNECTION
Connect the APR 63-5 by performing the following
steps. Figure 4, Figure 5, and Figure 6 illustrate
typical APR63-5 connections. The torque applied to
the terminal block screws should not exceed 9 inch
pounds (1 Newton meter).
1. Configure the regulator’s nominal frequency
by connecting the jumper from COM to either
the 50 Hz or 60 Hz terminal.
2. If using a CBS 305 with the APR 63/5, remove
the jumper from APR 63-5 terminals CB– and
CB+ and connect those terminals to the CBS
305.
3. Connect APR 63-5 terminals F+ and F– to the
exciter field. Observe proper polarity.
4. For regulator power, connect terminals 3 and
4 to the generator stator. Fuse both leads with
5 A, 250 V, high interrupting capacity, fast-
blowing fuses. If desired, install a shutdown
switch.
5. Connect the line-to-line generator sensing to
the regulator. Generator sensing connects to
terminals 4 and either 240 or 480, depending
upon the generator voltage.
OPERATION
The following procedures are provided for APR 63-5
setup and commissioning.
Caution
Meggers and high-potential test equipment
must not be used. Incorrect use of such
equipment could damage the semiconductors
contained in the regulator.
Preliminary Setup
To prevent damage to the regulator, perform the
following steps before proceeding with system startup.
1. Verify that the APR 63-5’s specifications re
compatible with the generator system
requirements.
2. Ensure that the regulator is connected
correctly. See Figures, 4, 5, and 6.
3. Install fuses per step 4 of Interconnection.
During periods of prime mover idling, use the
excitation shutdown switch.
SYSTEM STARTUP
1. Start the prime mover and bring it up to rated
speed. The generator voltage should build up.
If a minimum residual generator voltage of 6
Vac is not present, perform the procedure
under Field Flashing.
2. Slowly adjust the regulator VOLT control until
the voltage reaches the nominal value. If
used, adjust the remote voltage adjust
potentiometer to set the generator output to
the desired value.
3. Apply and remove load to check for stability. If
the voltage is unstable, refer to the guidelines
under Regulator Controls, STAB.
4. Reduce the generator frequency (speed) to 55
Hz (on 60 Hz systems) or 45 Hz (on 50 Hz
systems). Verify that the generator output
decreases from this point. If it does not, refer
to the steps under Regulator Controls, FREQ.
Publication
9168700991
Revision
G
Instructions
Date
04/14
Page
2 of 6