TP-5986 4/03
28
Section 7 Generator Troubleshooting
7.2.2
Voltage Regulator Adjustment
The factory sets the voltage regulator and under normal
circumstances
the
regulator
requires
no
further
adjustment. However, if the voltage regulator has been
replaced or tampered with, or if voltage/frequency
reconnection has been done, readjust the voltage
regulator according to the following procedure. See
Figure 7-5.
The following paragraphs describe the
voltage regulator components.
Voltage Adjustment Pot
adjusts the generator output
within the range of 100--130 volts.
Stabilizer Pot
fine-tunes regulator circuitry to minimize
AC voltage fluctuation.
33
44
2
1
55
GY R Y O W BK
66 44 33 55 -- +
66
33
3
4
B1
B2
1
4
5
6
7
8
9
10
11
12
13
14
15
+
--
2
3
TP-598655
1. Optional remote rheostat
2. Voltage adjustment pot
3. PowerBoost
™
IIIE voltage regulator
4. Stabilizer pot
5. Volts/Hz pot
6. Stator/rotor connections (for reference only)
7. DC output
8. Rotor
9. 10-amp fuse
10. AC power input (aux.)
11. Main (2 and 1)
12. Control
13. Stator
14. Sensing
15. Main (3 and 4)
Figure 7-5
PowerBoost
t
IIIE Voltage Regulator
Volts/Hz Pot
feature allows the voltage to drop if the
load imposed on the generator causes the engine speed
to fall below a predetermined RPM or frequency. This
reduction of voltage results in a decrease of starting kW
(load) allowing the governor to recover the engine
speed.
Voltage Regulator Adjustment Procedure
1. Stop the generator set.
2. Turn the remote rheostat, if equipped, to the
midpoint. Turn the voltage and stabilizer pots fully
counterclockwise. Connect the voltmeter to the AC
circuit or an electrical outlet.
3. Start the generator set.
4. Adjust the generator frequency using a frequency
meter. Set the no load speed at 52.5 Hz for 50 Hz
operation or 63 Hz for 60 Hz operation.
5. Rotate the voltage adjustment pot clockwise to
increase the voltage or counterclockwise to
decrease the voltage to achieve the desired output
voltage.
6. Connect a 120-volt light bulb to the AC plug on the
generator set.
7. Rotate the stability pot clockwise until the light bulb
flickers minimally.
8. Readjust the voltage adjustment pot to achieve the
desired output voltage.
9. Disconnect the 120-volt light bulb.
10. Turn the volts/Hz pot completely clockwise to
decrease the Hz rolloff point. See Figure 7-6.
100
105
110
115
120
125
40 42 44 46 48 50 52 54 56 58 60 62 64
60Hz Models
50Hz Models
Clockwise to decrease Hz rolloff
Counterclockwise to increase Hz rolloff
Frequency (Hz)
Vo
lts
(AC)
Figure 7-6
Volts/Hz Rolloff Chart
Содержание 4EF
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Страница 10: ...VI Safety Precautions and Instructions TP 5986 4 03 Notes ...
Страница 14: ...TP 5986 4 03 iv Introduction Notes ...
Страница 18: ...TP 5986 4 03 4 Section 1 Specifications Notes ...
Страница 20: ...TP 5986 4 03 6 Section 2 Scheduled Maintenance Notes ...
Страница 22: ...TP 5986 4 03 8 Section 3 Intake and Exhaust System Notes ...
Страница 26: ...TP 5986 4 03 12 Section 4 Fuel System Notes ...
Страница 46: ...TP 5986 4 03 32 Section 7 Generator Troubleshooting Notes ...
Страница 54: ...TP 5986 4 03 40 Section 9 Generator Disassembly Reassembly Notes ...
Страница 56: ...TP 5986 4 03 42 Section 10 Wiring Diagrams and Voltage Reconnection 10 1 Schematic Wiring Diagram 359343 J ...
Страница 60: ...TP 5986 4 03 46 Section 10 Wiring Diagrams and Voltage Reconnection Notes ...
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