Electrical Machines A series motor is efficiently suitable for low starting torque operation. none of these. high starting torque operation. constant speed operation. low starting torque operation. none of these. high starting torque operation. constant speed operation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage across the open circuited field termninals of a synchorous machine under slip test is AC of supply frequency. DC of slip frequency. A modulated supply frequency AC voltage with slip frequency envelop. DC. AC of supply frequency. DC of slip frequency. A modulated supply frequency AC voltage with slip frequency envelop. DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting the damper bars develop induction motor torque. the damper bars develop synchronous motor torque. negative sequence currents are generated. the damper bars develop induction generator torque. the damper bars develop induction motor torque. the damper bars develop synchronous motor torque. negative sequence currents are generated. the damper bars develop induction generator torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to withstand All of these any unbalanced magnetic pull on the armature core. bending moment due to weight of the armature. twisting strains due to transmission of torque. All of these any unbalanced magnetic pull on the armature core. bending moment due to weight of the armature. twisting strains due to transmission of torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The inertia constant H of a synchronous condenser is none of these. greater than that of turbo alternator. greater than that of hydro generator. equal to that of the effective length of the line. none of these. greater than that of turbo alternator. greater than that of hydro generator. equal to that of the effective length of the line. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of 90° less than 90° 0° Greater than 90° 90° less than 90° 0° Greater than 90° ANSWER DOWNLOAD EXAMIANS APP
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