- 57 -
3 phase - 3 phase
The generator can run in two different modes:
3 phase, lower voltage
When using this selection, the generator provides a
230 V output voltage. (IT = active)
3 phase, higher voltage
When using this selection, the generator provides a
400 V output voltage. (ELR = active)
Q1.1 ....Circuit breaker for low voltage, high
current
Interrupts the low voltage power supply
towards X1 when a short-circuit occurs at
the load side or when the overcurrent
protection (QAS 14: 32 A, QAS 20: 50 A) is
activated. It must be reset manually after
eliminating the problem.
Q1.2 ....Circuit breaker for high voltage, low
current
Interrupts the high voltage power supply
towards X1 when a short-circuit occurs at
the load side or when the overcurrent
protection (QAS 14: 20 A, QAS 20: 32 A) is
activated. It must be reset manually after
eliminating the problem.
R12 .....Voltage adjustment
Allows to adjust the output voltage.
Depending on which mode the generator is running
in, circuit breaker Q1.1 or Q1.2 will be operational.
Circuit breakers Q1.1 and Q1.2 cannot be switched on
at the same time. This is prevented by means of the
auxiliary voltage selection relays S10b and S10c
(refer to circuit diagram 9822 0992 67/00).
The selection between the two modes is done by
means of S10.
S10......Output voltage selection switch
Allows to select a 3 phase high output
voltage or a 3 phase low output voltage.
Selector switch S10 is located on the
alternator.
H0
S20
F10
P4
P3
0
0
20
40
80
100
200
V
A
300
400
500
Qc 1002
145
Q1.1
R12
Q1.2
S2
S4
V
R12
IT
ELR
Q1.2
Q1.1
AMF operation is not possible with a
dual voltage generator.
!
Changing the output voltage is only
allowed when the unit has stopped.
After changing the output voltage by
means of the selection switch S10,
adjust the output voltage by means of
potentiometer R12 to the required
value.
!
Содержание QAS 14
Страница 1: ...QAS 14 20 Kd Instruction Manual for AC Generators English...
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Страница 81: ...81 Circuit diagrams...
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Страница 100: ...Printed in Belgium 11 2010 2954 3380 04 www atlascopco com...