The manual governor and AVR increase and decrease inputs can only be used in manual
mode.
18. Island mode
This input deactivates the busbar measurements during breaker operations. This makes it possible to close
the breaker from the GPC even though the generator and busbar are not synchronised.
The GPC will issue the close breaker signal even though the generator and busbar are NOT
synchronised.
If this function is used, additional breakers must be installed between the generator and the
point from which the busbar measurements are taken for the GPC. Otherwise the generator will
close its circuit breaker without synchronism with subsequent damage, injury or death!
Serious personal injury, death and damaged equipment could be the result of using this input
without proper safety precautions/testing prior to use. Take precautions that a high degree of
safety is implemented in the application before using this function.
The function of the application must be checked and tested carefully during the commission-
ing when the island mode input is used. This is to ensure that no false breaker closings occur.
19. Fixed frequency
Input for selection of fixed frequency.
20. P load sharing
Input for selection of load sharing of the active power.
21. Fixed P
Input for selection of fixed active power.
22. Frequency droop
Input for selection of frequency droop.
23. Ext. GOV set point
Input for selection of external set point for the selected governor regulation mode.
24. Fixed voltage
Input for selection of fixed voltage.
25. Q load sharing
Input for selection of load sharing of the reactive power.
26. Fixed PF
Input for selection of fixed power factor.
27. Fixed Q
Input for selection of fixed reactive power.
28. Voltage droop
Input for selection of frequency droop.
29. Ext. AVR set point
Input for selection of external set point for the selected AVR regulation mode.
GPC-3 DRH 4189340587 UK
Additional functions
DEIF A/S Page 39 of 122
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