Consider a single phase synchronous machine of cylindrical rotor type. A single phase supply is given to the stator winding and a voltmeter is connected across rotor winding. For what value of ‚âà√≠‚Äö√†√®r, the voltmeter reads maximum?

Consider a single phase synchronous machine of cylindrical rotor type.

1.	Consider a single phase synchronous machine of cylindrical rotor type. A single phase supply is given to the stator winding and a voltmeter is connected across rotor winding. For what value of ‚âà√≠‚Äö√†√®r, the voltmeter reads maximum?
A.	90¬¨¬®‚Äö√†√ª
B.	0¬¨¬®‚Äö√†√ª
C.	45¬¨¬®‚Äö√†√ª
D.	30¬¨¬®‚Äö√†√ª
Answer» C. 45¬¨¬®‚Äö√†√ª

Discussion

No Comment Found

Related MCQs

WHICH_OF_THE_FOLLOWING_EQUATION_REPRESENTS_THE_RELUCTANCE_TORQUE_OF_A_SALIENT_POLE_SYNCHRONOUS_MACHINE??$
An electromechanical energy conversion device has cylindrical stator but salient pole rotor. If ‚âà√≠¬¨‚Ä¢ is the angle between stator field and rotor field, the average torque developed is proportional to (A and B are constants) __________$#
Which_component_of_torque_equation,_Te(av)=_1/8_Im2(Ld-Lq)sin2‚âà√≠¬¨‚Ä¢+1/2_IfImMmaxsin‚âà√≠¬¨‚Ä¢_represents_the_electromagnetic/interaction_torque_in_single_phase_salient_pole_synchronous_machine?$#
The self and mutual inductances of a doubly excited magnetic system are Ls=0.6+0.20cos2‚âà√≠‚Äö√†√®r H and Lr=0.75+0.30cos2‚âà√≠‚Äö√†√®r H and Msr=0.8cos‚âà√≠‚Äö√†√®r H. For a stationary rotor at an angular position of ‚âà√≠‚Äö√†√®r=60¬¨¬®‚Äö√†√ª,what is the magnitude of torque when the currents is=20A DC and ir=10A DC?$
An_electromechanical_energy_conversion_device_has_cylindrical_stator_but_salient_pole_rotor._Rotor_is_not_excited._If_‚âà√≠¬¨‚Ä¢_is_the_angle_between_stator_field_and_rotor_long_axis,_then_average_torque_developed_is_proportional_to_(A_and_B_are_constants)$
In a two phase cylindrical rotor synchronous machine, torque Te is ____________?
In a two phase cylindrical rotor synchronous machine, the mutual inductance M‚âà√≠¬¨¬±‚âà√≠‚Äö√¢¬ß between ‚âà√≠¬¨¬± phase and ‚âà√≠‚Äö√¢¬ß phase winding is __________$
In a two phase cylindrical rotor synchronous machine, the self inductances L‚âà√≠¬¨¬±, L‚âà√≠‚Äö√¢¬ß for phases ‚âà√≠¬¨¬±,‚âà√≠‚Äö√¢¬ß respectively are __________$
The following torque expression: Te=-isirMmaxsin‚âà√≠‚Äö√†√®r is applicable in a single phase cylindrical rotor synchronous machine when the rotor is __________$
In a single phase cylindrical rotor synchronous machine, the torque Te tends to ____________ the space angle ‚âà√≠‚Äö√†√®r.$

Consider a single phase synchronous machine of cylindrical rotor type. A single phase supply is given to the stator winding and a voltmeter is connected across rotor winding. For what value of ‚âà√≠‚Äö√†√®r, the voltmeter reads maximum?

Discussion

No Comment Found

Related MCQs

Reply to Comment