Electrical Machines The maximum power developed in cylindrical synchronous machine is occurs at a load angle of less than 90o. 0o. Greater than 90o. 90o. less than 90o. 0o. Greater than 90o. 90o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pair of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance? PZL/4Sp² PZL/ 4Sa PZL/4S PZL/4Sa² PZL/4Sp² PZL/ 4Sa PZL/4S PZL/4Sa² 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 identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW? 45 HZ 48 Hz 50 Hz 48.5 Hz 45 HZ 48 Hz 50 Hz 48.5 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Hysteresis loss. Eddy current loss. Copper loss. Stray loss. Hysteresis loss. Eddy current loss. Copper loss. Stray loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed? 16.55 Nm Zero 15.28 Nm 15.6 Nm 16.55 Nm Zero 15.28 Nm 15.6 Nm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in None of these delta or star according to need. delta. star. None of these delta or star according to need. delta. star. ANSWER DOWNLOAD EXAMIANS APP
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