1) Paralleling conditions: a) Generator sets should be equipped
with electrical governor system b) Incoming genset phase sequence
must be same as main power c) Voltage difference is in the limit
between genset and main power d)Frequency difference is in the
limit between genset and main power e) Phase angle difference is in
the limit between genset and main power2) Better reliability and
continuity of electrical power: The paralleling of generator sets
enhances system performance because they Can stand much more load
than one genset do 3) Convenient maintenance and service:With
generator sets operated in paralleling system, servicing generator
sets will not interrupt emergency power to critical system 4) More
economic: Operator can manage the operating gensets according main
power load. It eliminates the waste of fuel and lubrication oil
while bigger power genset carry smaller load5) More flexibility for
future expansion: Paralleling system offer economy of installing
only as much power as you need, then adding generator set as
building power expands
