While synchronising a 3-phase alternator to the bus-bar the paralleling switch should be closed
A. just before the pointer reaches the vertical position when moving in the fast direction.
B. just after the pointer passes the vertical position when moving in the fast direction.
C. when pointer indicates fast position.
D. when pointer indicates slow position.
Answer:A
While synchronising a 3-phase alternator to the bus-bar the paralleling switch should be closed
A. just before the pointer reaches the vertical position when moving in the fast direction. B. just after the pointer passes the vertical position when moving in the fast direction. C. when pointer indicates fast position. D. when pointer indicates slow position.