A large 3-phase, 4000V (line-to-line), 60HZ motor draws a current of 385A (per phase) and a total active power of 2344KW when operating at full load. Total copper losses are 15KW, iron losses are 23.4KW, and windage and friction losses are 12KW. Motor is rotating at 800 rpm. Calculate the following: (i) (ii) (ii) The power factor at full-load Output mechanical power Output torque Efficiency (iv)

A large 3-phase, 4000V (line-to-line), 60HZ motor draws a current of 385A (per phase) and a total active power of 2344KW when operating at full load. Total copper losses are 15KW, iron losses are 23.4KW, and windage and friction losses are 12KW. Motor is rotating at 800 rpm. Calculate the following: (i) (ii) (ii) The power factor at full-load Output mechanical power Output torque Efficiency (iv)

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter19: Special-purpose Outlets-water Pump, Water Heater

Section19.1: Water Pump And Branch Circuit

Problem 21R: Fill in the data for a 16-ampere electric motor, single-phase, no Code letters. a. Branch-circuit...

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