Atlas Copco QAS 60 Pd, Инструкция по эксплуатации

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Example: Installation with 3 gensets
G1 = 300 kW; G2 = 200 kW; G3 = 200 kW.
– Start signal is set at 90 kW (maximum load step <
90 kW).
Start signal if:
Total Power needed > (total available power of
running gensets -set point start signal).
• Only G1 is running; at 210 kW load (300 kW
- 90 kW) => G2 will be started.
• G1 & G2 are running; at 410 kW load (200 kW
+ 300 kW - 90 kW) => G3 will be started.
– Stop signal is set at 100 kW and priority is set as
(high) G1 > G2 > G3 (low).
Stop signal if:
Total Power needed < (Total available power of
running gensets - Power of generator with lowest
priority - set point stop signal).
• G1 & G2 & G3 are running; at 400 kW
(700 kW - 200 kW - 100 kW) => G3 will be
stopped.
• G1 & G2 are running; at 200 kW (500 kW -
200 kW - 100 kW) => G2 will be stopped.
The priority on starting and stopping the generators
can be chosen on priority settings or on the amount of
running hours. In manual mode the start and stop
sequence is determined by the chosen priority
between the generators. The generator with the lowest
priority will start as the latest genset and will stop as
first. If running hours are chosen as priority the start
and stop sequence will be defined based on the actual
running hours of the different generators. The lowest
running hours will get the highest priority.
Installation wirings
When paralleling generators with
PMS, it is no longer necessary to use
the analogue load sharing lines. This
will be done through the PMS
communication lines. Use a screened
CAN communication cable with a
maximum total distance of
200 meters. Do not connect the cable
screen to the ground! Use a
120 Ohm resistor at both end
controllers of the PMS.
For more information on this
option, see User Manual Qc4002™
MkII and dedicated PMS manual.
!
!
1 Splitter (1626 6901 00)
2 Cable (1626 6906 00)
3 End resistor (male) (1626 6926 00)
4 End resistor (female) (1626 6927 00)
Genset 1
X30
Genset 2
X30
Genset 3
X30
Genset 4
X30
1
2
3
4