A synchronous motor with delta conductive coils is fed from a 480V source. Its synchronous impedance is 102, the product winding resistance is neglected, and the ferrous losses and friction losses are neglected as well. Find the following: A) If it is running a 400hp load at a power factor of 0.85 lead, find the value and angle of E, and Ip B) If the field current increases by 10%, explain the motor behavior using the vector diagram. (C) Find the values of E, I, and I after increasing the load (D) Calculate the power factor after increasing the load.

A synchronous motor with delta conductive coils is fed from a 480V source. Its synchronous impedance is 102, the product winding resistance is neglected, and the ferrous losses and friction losses are neglected as well. Find the following: A) If it is running a 400hp load at a power factor of 0.85 lead, find the value and angle of E, and Ip B) If the field current increases by 10%, explain the motor behavior using the vector diagram. (C) Find the values of E, I, and I after increasing the load (D) Calculate the power factor after increasing the load.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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