GE G30 Instruction Manual page 459

9 APPLICATION OF SETTINGS 9.1 SETTING EXAMPLE
The two sources are configured as follows:
The GSU is again lagging by –30° (from the line side to the generator side). Loss of excitation and reverse power will be
assigned to source 1. In this case, the only phase shift that must be accounted for is the phase shift of the transformer.
Winding 2 is therefore shifted by –30°.
9
GE Multilin G30 Generator Protection System 9-3