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In electromechanical energy conversion device shown in the given figure, instantaneous values of armature induced emf, bus bar voltage and armature current are respectively e, v and i, Te, Ta and ωr represent external torque, armature developed torque and angular velocity of shaft respectively. Assume that given directions of parameters in the figure are positive. If device is working generating mode, then
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- all parameters will have the positive direction
- e, υ, Te and ωr will have negative direction and others will remain in positive direction
- Ta and i will have negative direction and others will remain in positive direction
- Te and ωr will have negative direction and others will remain in positive direction
Correct Option: C
NA
