www.basler.com
+1 618.654.2341 (USA)
info@basler.com
Model
APR 63-5
9168700107
INTRODUCTION
By supplying and controlling the dc exciter field power,
the APR 63-5 regulates the output voltage of a
conventional, 50 or 60 hertz, brushless generator that
has a 63 Vdc field. APR 63-5 voltage regulators are
CSA/UL recognized and housed in a rugged, epoxypotted, plastic case.
The APR 63-5 senses the generator output voltage,
converts it to a dc signal, and compares this signal to
a reference voltage. An error signal is developed and
used to control the dc field power in order to maintain
a constant generator output.
SPECIFICATIONS
Power Input
Range: 190 to 277 Vac, ±10%,
1-phase
Frequency: 50/60 Hz
Burden: 650 VA
Sensing Input
Configuration: 1-phase, tap-selectable
Frequency: 50/60 Hz
Range
240 V Tap: 190 to 250 Vac, ±10%
480 V Tap: 380 to 480 Vac, ±10%
Burden: 5 VA maximum
Power Output
Ratings
Maximum Continuous: 5.0 Adc, 63 Vdc, 315 W
One Minute Forcing: 8.5 Adc, 105 Vdc, 893 W
DC Field Resistance
Minimum: 12.6 Ω
Maximum: 100 Ω
Voltage Adjustment
Internal Control
Range
240 V Tap: 170 to 264 Vac
480 V Tap: 340 to 528 Vac
External Control
Provided by an optional, 1,000 Ω, 2 W potentiometer
(Basler P/N 17727).
Voltage Buildup
Buildup is automatic from generator residual voltage
as low as 6 Vac.
Publication
9168700991
Revision
G
Instructions
Part Number
Frequency Compensation
See Figure 1.
Overexcitation Shutdown
Output power is removed instantaneously if the field
voltage exceeds 135 Vdc, ±5 Vdc. Output power is
removed after a time delay that is inversely propor tional to the voltage magnitude when the field voltage
exceeds 100 Vdc, ±5 Vdc.
Agency Certifications
UL recognized and CSA certified.
Temperature
Operating: –40 to 60°C (–40 to 140°F)
Storage: –65 to 85°C (–85 to 185°F)
OVEREXCITATION SHUTDOWN PROTECT IO N
If the exciter field voltage exceeds 100 Vdc (±5 Vdc),
the APR 63-5 automatically removes field power after
a time delay. This delay is inversely proportional to the
magnitude of the overvoltage. Figure 2 illustrates the
inverse time characteristic. At 135 Vdc (±5 Vdc), field
power is removed instantaneously.
When field power is removed due to overexcitation,
the APR 63-5 will not reset or return to operation until
the generator output decreases to less than 6 Vac for
a minimum of 10 seconds.
REGULATOR CONTROLS
APR 63-5 controls are illustrated in Figure 3 and
consist of FREQ, STAB, and VOLT.
FREQ
This control prevents generator and regulator damage
when the generator frequency decreases by
decreasing the generator output voltage. To adjust the
FREQ control:
1. Set the generator rpm at the desired
frequency roll-off.
2. Adjust the FREQ control until the voltage
begins to decrease.
3. Increase the generator speed to nominal. The
output voltage should be at nominal.
STAB
This control enables adjustment of the generator
response time (and thus voltage stability). Use an
oscilloscope or other voltage recording device to set
Date
04/14
Copyright
2014
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.
this control. Observe the following guidelines when
Caution
adjusting the STAB control.
blowing fuses. If desired, install a shutdown
switch.
• 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 EQUI P ME NT
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
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.
Meggers and high-potential test equipment
must not be used. Incorrect use of such
equipment could damage the semiconductors
contained in the regulator.
Preliminary Setu p
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.
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-
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 br ing 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
FIELD FLASHING
0
0
10 20 30 40 50 60
20
40
60
80
100
120
Frequency (Hz)
(% From Nominal)
Generator Output
D2717-05
50 Hz
60 Hz
“Corner Frequency”
Time Delay (seconds)
Field Voltage (dc)
1
2
3
4
5
6
8
10
20
30
40
50
60
80
100
70
200
300
400
500
80 90 100 110 120 130 140 150
135 ±5
D2717-06
When the generator is operated with the regulator for
the first time, the polarity of the generator’s residual
magnetism may not be correct or the magnitude may
not be enough for reliable voltage buildup. If the
generator voltage does not build up, stop the prime
mover and proceed as follows:
1. With the prime mover at rest, apply an
ungrounded dc source of not more than
48 Vdc to terminals F+ and F– in series with a
limiting resistor. Use 1 Ω of resistance for
each volt from the dc source. The resistor
should have a power rating of at least 1 watt
per volt.
2. Allow approximately 30 seconds to elapse
before removing the dc source.
3. Start the prime mover and measure the
voltage at regulator terminals 3 and 4. If the
voltage is greater than 6 Vac, voltage buildup
should occur. Repeat the flashing procedure if
less than 6 Vac is measured.
OPERATIONAL TEST
Figure 1. Frequency Compensation Curves
If desired, perform the following steps to perform a
bench test of APR 63-5 operation.
1. Connect the APR 63-5 and apply 240 Vac as
shown in Figure 7.
2. Rotate the VOLT control fully counter-
clockwise. The lamp should not be lit.
3. Rotate the VOLT control fully clockwise. The
lamp should be lit.
4. Rotate the VOLT control counterclockwise
until the lamp turns off.
Figure 2. Typical Inverse Time Characteristic Curve
Publication
9168700991
Revision
G
Instructions
Date
04/14
Page
3 of 6
Publication
9168700991
Figure 3. APR 63-5 Mounting Dimensions and Controls Illustration
Revision
G
Instructions
Date
04/14
Page
4 of 6
Figure 4. Typical Single-Phase Connections
480
240
3
7
6
4
F
+
F-
CB
+
CB-
50
COM
60
APR 63
-
5 VOLTAGE REGULATOR
3
TO CBS 305
(
OPTIONAL
)
CW
EXTERNAL
VOLTAGE
ADJUST
FIELD
A
B
C
2
2
GEN
1
SHUTDOWN
SWITCH
HZ
HZ
D2717-
09
4
1 Jumper for
60 Hz or
50 Hz.
2
Use 5
A
, 250
V, fast-blowing,
high
-
interrupting capacity
fuses
.
3 Remove jumper if CBS
305
is used
.
4
If external voltage adjust is not
used
, jumper terminals
6 and
7
.
FIELD
A
B
C
N
2
2
480V
GEN
SHUTDOWN
SWITCH
4802403764F+F-CB+CB-
50
COM
60
APR 63-5 VOLTAGE REGULATOR
3
TO CBS 305
(OPTIONAL)
CW
EXTERNAL
VOLTAGE
ADJUST
1
HZHZ
D2717-10
4
1 Jumper for 60 Hz or 50 Hz.
2 Use 5 A, 250 V, fast-blowing,
high-interrupting capacity
fuses.
3 Remove jumper if CBS 305
is used.
4 If external voltage adjust is not
used, jumper terminals 6 and 7.
FIELD
A
B
C
2
2
GEN
SHUTDOWN
SWITCH
ISOLATION
TRANSFORMER
4
E1
3
480
240
3
7
6
4
F+
F-
CB+
CB-
50
COM
60
APR 63-5 VOLTAGE REGULATOR
3
TO CBS 305
(OPTIONAL)
CW
EXTERNAL
VOLTAGE
ADJUST
1
HZHZ
D2717-11
4
1 Jumper for 60 Hz or 50 Hz.
2 Use 5 A, 250 V, fast-blowing,
high-interrupting capacity
fuses.
3 Remove jumper if CBS 305
is used.
4 If external voltage adjust is not
used, jumper terminals 6 and 7.
480
240
3
7
64
F+
F-
CB+
CB-
50
COM
60
APR 63-5 VOLTAGE REGULATOR
HZHZ
D2717-12
10 ohms
10W
100W
Lamp
240 Vac
Figure 5. Typical Connections for 480 Vac
Publication
9168700991
Revision
G
Instructions
Figure 6. Typical Connections with
Isolation Transformer
Figure 7. Operational Test Connections
Date
04/14
Page
5 of 6
Publication
9168700991
Revision
G
Instructions
Date
04/14
Page
6 of 6
Loading...