Datakom D-500 MK3, User Manual

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D-500 MK3 User Manual Firmware V-7.5
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The load sharing functionality brings flexibility and economy to the genset system, where only the
necessary number of gensets to supply the load run.
The reliability is also improved, where the user may have redundancy for failure cases or reserve power
for accidental increase in power demand. The redundancy allows also stopping one genset for
maintenance without interrupting the load power supply.
A maximum of 48 gensets can be paralleled on the same busbar using D-500 units. Always one of the
gensets will become the MASTER one.
The master genset will determine the voltage and frequency of the busbar. It should be noted that, when
the number of gensets in parallel increases, the stability of the system will be deteriorated, thus smaller
kW and kVAr gains should be used.
When more than one genset start together, the master genset will always feed the busbar first. Other
gensets will synchronize to the busbar, get in parallel and share the load.
This chapter is only applicable to units operated in multi-genset
SYNCHRONIZATION & LOAD SHARE mode.
30. LOAD SHARING
Max 48
gensets
Genset
Contactor
Genset
Busbar
Datalink
Bus
To mains
controller
s
TO LOAD
Analog
Load Share
Line