Electrical Machines A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is √3 1/√3 3 1/3 √3 1/√3 3 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Short circuiting is caused in the armature winding due to any of above. failure of insulation between two turns of coil. failure of insulation between two commutator bars. grounding of two or more turns of the same coil. any of above. failure of insulation between two turns of coil. failure of insulation between two commutator bars. grounding of two or more turns of the same coil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Use of fractional pitch winding results in reduced leakage reactance. All of these results in reduced axial length of the machine. make it stiffer. results in reduced leakage reactance. All of these results in reduced axial length of the machine. make it stiffer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A triangular mmf wave is produced in the air gap of an electric machine. Such wave is produced by rotor of an synchronous machine. rotor of a dc machine. stator of a dc machine. stator of a induction machine. rotor of an synchronous machine. rotor of a dc machine. stator of a dc machine. stator of a induction machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction effect is more in which of the following methods? None of these same in both methods field weakening method armature resistance control None of these same in both methods field weakening method armature resistance control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip rings of an induction motors are made of aluminium. carbon. phosphor bronze. stainless steel. aluminium. carbon. phosphor bronze. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
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