CONFIDENTIAL INFORMATION
of Basler Electric, Highland, IL. It is loaned for
confidential use, subject to return on request, and
with the mutual understanding that it will not be
used in any manner detrimental to the interest of
Basler Electric.
Publication:
9 1687 00 991
© 1997-2000, Basler Electric, Highland, IL 62249
First Printing November 1986
Revision E
June 2000
ECO: 9609
INSTRUCTION MANUAL
FOR
VOLTAGE REGULATOR
Model: APR 63-5
BASLER ELECTRIC, BOX 269, HIGHLAND, IL 62249 PHONE 618/654-2341 FAX 618/654-2351
INTRODUCTION
The Basler APR 63-5 Voltage Regulator is a
CSA/UL approved unit contained in an encap-
sulated plastic case. The regulator controls
the dc exciter field power of conventional, 50
or 60 hertz brushless generators that have a
63 Vdc field to regulate the output voltage.
Regulation is provided by sensing the genera-
tor output voltage, converting it to a dc signal
and comparing the signal to a reference volt-
age signal. An error signal is developed and
used to control the dc field power in order to
maintain a constant generator output.
SPECIFICATIONS
Certification: UL Listed, CSA Certified
DC Output Power: 5.0 Adc @ 63 Vdc (315
W) maximum continuous, 8.5 Adc @ 105 Vdc
(893 W) one minute forcing.
Exciter Field DC Resistance: 12.6 ohms mini-
mum, 100 ohms maximum.
AC Input Power: 190 to 277 Vac ±10%, single-
phase, 50/60 Hz. Burden: 650 VA.
AC Sensing Input: 190 to 240 Vac (240 V
tap), 380 to 480 Vac (480 V tap), single-phase,
50/60 Hz. Burden: 5 VA maximum.
Voltage Adjust Range (Internal):170 to 264
Vac (240 V tap) or 340 to 528 Vac (480 V tap).
External Voltage Adjust Rheostat: 1,000
ohms, 2 W (supplied as an optional item).
Voltage Build-Up: Internal and automatic from
generator residual voltage (6 Vac minimum).
Overexcitation Shutdown: Output power re-
moved under the following conditions: Exciter
field voltage exceeds 100 ±5 Vdc for a time
inversely proportional to voltage magnitude,
or instantaneously if voltage exceeds 135 ±5
Vdc.
Operating Temperature: –40°C (–40°F) to
+60°C (+140°F).
Storage Temperature: –65°C (–85°F) to
+85°C (+185°F)
FUSES
Install 5 A, 250 V, high interrupting capacity,
fast-blowing fuses in lines 3 and 4. See inter-
connection diagrams.
MOUNTING
The regulator may be mounted in any position.
Refer to the outline drawing for dimensions.
The regulator may be mounted directly on the
generator set using ¼” hardware. Select the
proper hardware to withstand any expected
shipping or transportation conditions.
C O M
6 0
H Z
5 0
H Z
C B -
C B +
F -
F +
4
6
7
3
2 4 0
4 8 0
F R E Q
S T A B
V O L T
R
B a s l e r E l e c t r i c
H i g h l a n d , I l l i n o i s
S O L I D - S T A T E
V O L T A G E R E G U L A T O R
Power: 190-277 Vac
650VA
Sensing: 240, 480 Vac
Output: 63 Vdc 5A
Oper. Freq. 50/60 Hz
M o d e l : A P R 6 3 - 5
R
4.75
(121)
5.66
(144)
0.45
(12)
0.90
(23)
1.58
(40)
3.16 (80)
1.35
(34)
1.68 (43)
NOTE: ALL DIMENSIONS ARE IN INCHES (MILLIMETERS)
11-18-97
D2717-07
APR 63-5 Outline Diagram
0 . 5 3
(13.49)
0 . 8 1
(20.64)
0 . 1 2 5
(3.18)
0 . 2 5
(6.35)
N O T E : A L L D I M E N S I O N S A R E I N I N C H E S ( M I L L I M E T E R S )
0 . 6 2 5
(15.88)
0 . 6 2 5
(15.88)
1 . 0 9 4
(27.78)
06-06-00
D2717-08.vsd
0 . 3 7 5
(9.53)
External Voltage Adjust Potentiometer
(Optional), Basler P/N 17727
0
0
10
20
30
40
50
60
20
40
60
80
100
120
F R E Q U E N C Y ( H Z . )
(% FROM NOMINAL)
GENERATOR OUTPUT
" C O R N E R F R E Q U E N C Y "
6 0
H Z
5 0
H Z
D 2 7 1 7 - 0 5
1 1 - 1 8 - 9 7
Frequency Compensation Curves
OVEREXCITATION SHUTDOWN
If the exciter field voltage exceeds 100 ±5 Vdc,
the regulator automatically removes the field
current after a time delay. The time delay is
inversely proportional to the magnitude of the
detected overvoltage condition. At approxi-
mately 135 ±5 Vdc, the field voltage is removed
instantaneously. Refer to the following figure.
Upon detection of overexcitation and the re-
sulting field voltage shutdown, the regulator
will not reset or return to an operational condi-
tion until the generator output drops to less
than 6 Vac for 10 seconds minimum.
TIME DELAY (SECONDS)
F I E L D V O L T S ( d c )
1
2
3
4
5
6
8
1 0
2 0
3 0
4 0
5 0
6 0
8 0
1 0 0
7 0
2 0 0
3 0 0
4 0 0
5 0 0
8 0
9 0
1 0 0
1 1 0
1 2 0
1 3 0
1 4 0
1 5 0
1 3 5 5+-
1 1 - 1 8 - 9 7
D 2 7 1 7 - 0 6
Typical Inverse Time
Delay Characteristic Curves
REGULATOR CONTROLS
FREQ CONTROL
This control prevents generator and regulator
damage by dropping the generator output volt-
age when the generator frequency drops.
a.
Set generator RPM to desired frequency
roll-off.
b.
Adjust FREQ control until voltage starts
to drop off.
c.
Speed up generator to rated speed. Volt-
age should be at nominal.
STAB CONTROL
This control allows the generator response
time (and thus voltage stability) to be adjusted.
Use an oscilloscope or other voltage record-
ing device to set this control.
a.
Rotation of STAB control CW will slow
voltage response time.
b.
Rotation of STAB control CCW will speed
response time. If rotated too far, genera-
tor voltage will hunt (oscillate).
c.
Rotate STAB control CW just past point
where voltage oscillation occurs.
VOLT CONTROL
Rotation of VOLT control CW will increase gen-
erator output voltage.
Removing jumper (terminals 6 and 7) and con-
necting external potentiometer (1,000 ohms,
2 watts) allows a ±10% adjustment of voltage
range with nominal set by VOLT control.
INTERCONNECTION
Refer to the following interconnection dia-
grams.
a.
Connect the jumper from COM to either
the 50 Hz or 60 Hz terminal depending
upon the generator frequency.