The self and mutual inductances of a doubly excited magnetic system are Ls=0.6+0.20cos2 r H and Lr=0.75+0.30cos2 r H and Msr=0.8cos r H. For a stationary rotor at an angular position of r=60 ,what is the magnitude of torque when the currents is=20A DC and ir=10A DC?

The self and mutual inductances of a doubly excited magnetic system ar

1.	The self and mutual inductances of a doubly excited magnetic system are Ls=0.6+0.20cos2 r H and Lr=0.75+0.30cos2 r H and Msr=0.8cos r H. For a stationary rotor at an angular position of r=60 ,what is the magnitude of torque when the currents is=20A DC and ir=10A DC?
A.	-233.88N-m
B.	+233.88N-m
C.	-467.76N-m
D.	+467.76N-m
Answer» B. +233.88N-m

Discussion

No Comment Found

Related MCQs

The self and mutual inductances of a doubly excited magnetic system are Ls=0.6+0.20cos2 r H and Lr=0.75+0.30cos2 r H and Msr=0.8cos r H. For a stationary rotor at an angular position of r=60 ,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 is the angle between stator field and rotor long axis, then average torque developed is proportional to (A and B are constants).
An electromechanical energy conversion device has cylindrical stator but salient pole rotor. If 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 +1/2 IfImMmaxsin represents the electromagnetic/interaction torque in single phase salient pole synchronous machine?
Which of the following equation represents the reluctance torque of a salient pole synchronous machine?
In a two phase cylindrical rotor synchronous machine, torque Te is _____________
In a two phase cylindrical rotor synchronous machine, the mutual inductance M between phase and phase winding is __________
In a two phase cylindrical rotor synchronous machine, the self inductances L , L for phases , respectively are __________
The following torque expression: Te=-isirMmaxsin 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 r.

The self and mutual inductances of a doubly excited magnetic system are Ls=0.6+0.20cos2 r H and Lr=0.75+0.30cos2 r H and Msr=0.8cos r H. For a stationary rotor at an angular position of r=60 ,what is the magnitude of torque when the currents is=20A DC and ir=10A DC?

Discussion

No Comment Found

Related MCQs

Reply to Comment