What is the formula for the cooling co-efficient to the rotating field coils?
Posted: Thu Jul 14, 2022 10:24 am
a) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 + armature voltage
b) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 – armature voltage
c) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 + armature voltage
d) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 – armature voltage
b) cooling coefficient of rotating field coils = 0.05 to 0.08 / 1 – armature voltage
c) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 + armature voltage
d) cooling coefficient of rotating field coils = 0.08 to 0.12 / 1 – armature voltage