Electrical Machines The functions of inter poles are both 1 and 2 None of these reduce cross magnetization effect and improve commutation nullify reactance voltage and improve the commutation. both 1 and 2 None of these reduce cross magnetization effect and improve commutation nullify reactance voltage and improve the commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator in case the brushes are moved so as to bring them in magnetic neutral axis, then, there will be none of above. demagnetisation. cross-magnetization as well as demagnetization. cross-magnetisation. none of above. demagnetisation. cross-magnetization as well as demagnetization. cross-magnetisation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a compensated DC series motor, the compensating winding is provided In series with the armature winding. In parallel with the field winding. As a separate unit. In parallel with the armature winding. In series with the armature winding. In parallel with the field winding. As a separate unit. In parallel with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Bl2v2. Blv2. Blv. Bl2v. Bl2v2. Blv2. Blv. Bl2v. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Sparkless commutation can be achieved by employing any one or more of the above methods. high resistance carbon brushes. compensating winding. inter poles. any one or more of the above methods. high resistance carbon brushes. compensating winding. inter poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Interpoles in a DC motor must be Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. ANSWER DOWNLOAD EXAMIANS APP
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