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Q1 ....... Main circuit breaker
Interrupts the power supply to X1 when a
short-circuit occurs at the load side, or when
the earth leak detector (30 mA) or the
overcurrent protection (QAS 14: 20 A,
QAS 20: 32 A) is activated or when the
shunt trip is energized. It must be reset
manually after eliminating the problem.
X1 ....... Main power supply (400 V AC)
Terminals L1, L2, L3, N (= neutral) and PE
(= earthing), hidden behind the control panel
door and behind a small transparent door.
N13 ..... Earth leak detector
Detects and indicates an earth fault current
and activates the main circuit breaker Q1.
The detection level can be set at 0.03 A fixed
with instantaneous trip but can also be
adjusted between 0.1 A and 1 A with time
delayed (0 - 0.5 sec) trip. N13 has to be reset
manually after eliminating the problem
(reset button marked R). It can be overridden
by means of the earth leak switch (S13,
labelled I
N) but has to be tested monthly
(by pushing test button T).
S13 .....Lock-out switch for earth fault
protection (N13)
This switch is located inside the cubicle and
is labelled I
N.
Position O: No de-energising of the main
circuit breaker Q1 when an earth fault
occurs.
Position 1: De-energising of the main circuit
breaker Q1 when an earth fault occurs.
Spillage free
A Spillage free skid with forklift slots allows the
customer to transport the generator easily with a
forklift.
It avoids accidental spilling of engine fluids.
Electronic speed regulator
The electronic speed regulator makes sure that the
output frequency of the generator is fixed (50 Hz/
60 Hz), independent of the amount of load.
Position O will only be used in
conjunction with an external earth
fault protection unit (e.g. integrated
in a distribution board).
If S13 is in position O, proper
earthing is of the utmost importance
for the safety of the user.
Eliminating any earth fault
protection can lead to serious injury
or even death for anybody touching
the unit or the load.
!
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...