Electrical Machines The torque developed in IM is nearly proportional to 1 / V. V. 1 / V2. V2. 1 / V. V. 1 / V2. V2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by f / s. sf / 2. s2. sf. f / s. sf / 2. s2. sf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-φ alternator has negligible stator resistance. A short circuit test is conducted on this alternator. At a particular speed, a field current of If1 is required to drive the rated armature current. If the speed of the alternator is reduced to half, the field current required to maintain rated armature current Would be equal to If1/2. Would be equal to If1. Cannot be predicted due to insufficient data. Woud be equal to 2If1. Would be equal to If1/2. Would be equal to If1. Cannot be predicted due to insufficient data. Woud be equal to 2If1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of cage rotors offers the following advantages less noise. locking tendency is reduced. all of below. uniform torque. less noise. locking tendency is reduced. all of below. uniform torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 1.644 KW. 2.73 KW. 0.9103 KW. 5.46 KW. 1.644 KW. 2.73 KW. 0.9103 KW. 5.46 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Diverters are used only in None of these series motors either of these shunt motors None of these series motors either of these shunt motors ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS