If a circuit breaker does not have a synch-check, reclosing relay and has a large standing phase angle across it, how can the system operator know if it is safe to close the breaker avoiding shock torque to the neighboring generators?
A) Ask the generator operators to change reactive to a leading power factor and then check the frequency.
B) If the voltage is within +/- 10 % it is OK to close the breaker.
C) Obtain help from the Regional operating committee engineers to advise you.
D) Use the synchroscope in the substation control room as a guide to show you how to adjust the system to improve the phase angle.