Answer Posted / sudhir purandare

Yes, self working on DG for last 20 years and never had any
problem because of capacitors. Capacitors will help to
improve the power factor of the system and indirectly
reduce the load on alternator (which is mainly for
delivering the reactive power). only care shall be taken by
not allowing the power factor to go in leading. It is a
normal practise to switch on the capacitors after motor
starts and switch off immediately after motor trips.
Instead of maintaining the PF close to unity, it is better
to maintain it 0.9.

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