Electrical Machines Damper winding is used to suppress the hunting. both 1 and 2. increase the load current. decrease the load current. suppress the hunting. both 1 and 2. increase the load current. decrease the load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Kh is hysteresis constant, f is supply frequency, Bm maximum flux density in core of transformer, the expression of hysteresis loss in transformer, is given by KhfBm1.6. Khf2Bm1.6. KhfBm. KhfBm3. KhfBm1.6. Khf2Bm1.6. KhfBm. KhfBm3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce iron loss. reluctance of core. volume of iron. volume of copper. iron loss. reluctance of core. volume of iron. volume of copper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? None of these. Full load. Low load. No load. None of these. Full load. Low load. No load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Over-excitation. Small and constant load. Periodic variation of load. Over-loading for long period. Over-excitation. Small and constant load. Periodic variation of load. Over-loading for long period. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant current. power. torque. speed. current. power. torque. speed. ANSWER DOWNLOAD EXAMIANS APP
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