Which of the following is not a reason, behind failing of self-exciting machine?
Posted: Thu Jul 14, 2022 1:11 pm
a) Residual magnetism is absent
b) Negative feedback
c) Field resistance value is more than critical resistance value
d) Armature resistance is non-zero
b) Negative feedback
c) Field resistance value is more than critical resistance value
d) Armature resistance is non-zero