A 3 phase synchronous motor, connected to an infinite bus, operating a – McqOptions

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1.	A 3 phase synchronous motor, connected to an infinite bus, operating at a leading pf with a constant load torque, if excitation is increased (δ is load angle and ϕ power factor angle)
A.	Both δ and ϕ decreases
B.	δ and ϕ both increases
C.	δ increases but ϕ decreases
D.	δ decreases but ϕ increases
Answer» E.

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