Electrical Machines What is/are the necessary conditions for voltage build up in self excited generator? All of these Field winding resistance should be less than critical resistance. Poles should contain residual flux. Field winding should be properly connected to armature winding. All of these Field winding resistance should be less than critical resistance. Poles should contain residual flux. Field winding should be properly connected to armature winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between short circuit current and field current short circuit current and armature current no load voltage and field current no load voltage and armature current short circuit current and field current short circuit current and armature current no load voltage and field current no load voltage and armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature mmf All of these armature flux armature current armature mmf All of these armature flux armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature flux is.............with respect to main field flux or main field poles? rotates same direction None of these rotates opposite direction stationary rotates same direction None of these rotates opposite direction stationary ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cross magnetization effects which of the following? both 2 and 3 reduction in main field flux commutation reduces the terminal voltage both 2 and 3 reduction in main field flux commutation reduces the terminal voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS