System grounding is done so that
A. inductive interference between power and communication circuits can be controlled.
B. the floating potential on the lower voltage winding for a transformer is brought down to an insignificant value .
C. the arcing faults to earth would not set up dangerously high voltage on healthy phases.
D. for all above reasons.
Answer:D
System grounding is done so that
A. inductive interference between power and communication circuits can be controlled. B. the floating potential on the lower voltage winding for a transformer is brought down to an insignificant value . C. the arcing faults to earth would not set up dangerously high voltage on healthy phases. D. for all above reasons.