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