Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Experience the convenience of finding accurate answers to your questions from knowledgeable professionals on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

(1) A two-pole, 50-Hz,6.6-, cylindrical rotor three-phase, star-connected synchronous motor is working under the constant field current and is drawing 1000W with a leading power factor of 0.8. The synchronous impedance is equal to the 1.5+12 phase. Calculate the power factor and output torque (shaft torque) when the input power increases to 1500W (Neglecting the rotational and mechanical losses).
(2) A 460-,60-Hz, 4-pole, three-phase induction machine with the following parameters is connected to a three-phase voltage source inverter (VSI) which implements the field-oriented control (FOC) scheme in synchronous reference frame. If the rotor speed is 1000rpm, the motor will deliver the maximum torque to the load under constant air-gap flux (equal to the machine-rated flux). What is the amplitude and frequency of the stator phase current?
A. Stator resistance: 0.087.
B. Stator leakage reactance: 0.302.
C. Magnetizing inductance: 13.08.
D. Rotor resistance: 0.228.
E. Rotor leakage reactance: 0.302.

Sagot :

We appreciate your visit. Hopefully, the answers you found were beneficial. Don't hesitate to come back for more information. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.