Electrical Machines Which is the arrangement of windings in a core type single phase transformer? Lv on one core limb and hv on the other Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Half lv inside and half hv outside on each core limb Lv on one core limb and hv on the other Half hv inside and half lv outside on each core limb Sandwiched lv and hv discs on each core limb Half lv inside and half hv outside on each core limb ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor speed of an induction motor is given by Ns = 120f / p × ( 1 - s ). Ns = 120f /p × ( 1 - r). Nr = 120f / p × (1-s). None of these Ns = 120f / p × ( 1 - s ). Ns = 120f /p × ( 1 - r). Nr = 120f / p × (1-s). None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During hunting of a synchronous motor damper bar develops torque. field excitation increases. harmonic are developed in the armature circuit. negative phase sequence currents are generated. damper bar develops torque. field excitation increases. harmonic are developed in the armature circuit. negative phase sequence currents are generated. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are 4% and 5% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW? 200 MW and 400MW generator 1 gets over load None of these generator 2 gets over load 200 MW and 400MW generator 1 gets over load None of these generator 2 gets over load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? Electrical power generator. Induction motor. Electrical power transformer. DC motor. Electrical power generator. Induction motor. Electrical power transformer. DC motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of rotor winding. either stator winding or rotor winding. stator winding. None of these rotor winding. either stator winding or rotor winding. stator winding. None of these ANSWER DOWNLOAD EXAMIANS APP
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