V
ours is a 9FA gas turbine, in which for initial cranking we are converting the generator into synchronous motor with the help of load commutated inverter. In generator mode, neutral will grounded with NGT & NGR via. disconnector 89ND. But during motoring mode we are opening the earth disconnector 89ND. what is the reason for that? during motoring & generator mode what will be direction of rotation?