Referring to the containership one-line distribution diagram shown in the illustration, what is the purpose of the feedback circuit breaker as used to bypass the automatic bus transfer device? EL-0014 |
A) Since it is normally closed, it is the means by which the emergency generator control circuit senses the voltage at the main bus. |
B) Since it is normally closed, it is the means by which the emergency generator control circuit senses the voltage at the emergency bus. |
C) It allows the emergency generator to feed the main bus during dead ship start up, otherwise it is generally open and not used. |
D) It allows the emergency generator to be paralleled with the ship's service generators when additional power is needed. |