Page 82 - Engine IQflip'21

Mode of Operation

Parallel with customer Gas engine/Diesel set

Requirement for island parallel operation with customer Active load sharing (kW)
engines: Engine speed regulator with adjustable quadrature droop kit
The customer engines have to fulfill some preconditions: and similar speed response time! Operation of the complete
system is possible with droop or load sharing line-(fix
400V Alternator winding system adjustment during set up through commission-ing stuff
INNIOJ Generator with 2/3 pitch main stator winding. according site requirement). INNIO Jenbacher provides
If customer generator (400V) is not fitted with 2/3 pitch main terminals (+IS) for a load sharing signal 0–5V or 4–16mA = 0–
stator 100 % from the customer.
winding a neutral choke has to be fitted to the customer
generator-scope INNIOJ alternator AVR has U/f function, if customer alternator
of supply from customer – if star points are connected AVR don´t have same characteristic that feature has to be
together – disabled! Possible operation functions of complete system
to avoid higher neutral current. (one selector switch on the Interlock Panel):

11KV Alternator winding system Power mode function of the running INNIOJ engines with
INNIOJ Generator with 5/6 pitch main stator winding. • customer engines only if the customer running engines
Star point is normally not grounded – delivery and control of a have actual twice as much power as INNIOJ because of
necessary grounding (NGR) system according customer SLD stability reasons.
is scope of supply from customer!
− Speed mode:
Reactive load sharing (kvar) A) with load sharing line (Customer signal 0–5V or 4-16mA =
Generator with “voltage droop“ for reactive load sharing – 0–100%PN)
„adjustable quadrature droop kit“. B) with droop if no load sharing line is available! (e.g.:
mechanical speed governor)

Signals according interface list from INNIOJ have to be
exchanged between
All rights reserved May 19 the customer engine and the INNIO Jenbacher gas engine
to ensure safe operation conditions!