Basler Electric APR63-5 - Manual

www.basler.com
+1 618.654.2341 (USA)
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Model APR 63-5
Part Number 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, epoxy-
potted, 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.
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 PROTECTION
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
Publication
9168700991
Revision
G
Instructions
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 .