"A motor is used to drive a hoist. Motor characteristics are given by: [Quadrants I,II,IV: N= -8.2T+2031 , RPM // Quadrants II,III,IV; N= -8.2T-2031 , RPM ] when hoist is loaded TL= 188 , Nm and when it is empty TL= -72 , Nm Calculate the equilibrium speeds for operation in all four quadrants. . Choose Only one answer " II

"A motor is used to drive a hoist. Motor characteristics are given by: [Quadrants I,II,IV: N= -8.2T+2031 , RPM // Quadrants II,III,IV; N= -8.2T-2031 , RPM ] when hoist is loaded TL= 188 , Nm and when it is empty TL= -72 , Nm Calculate the equilibrium speeds for operation in all four quadrants. . Choose Only one answer " II

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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The armature and field resistances of a series machine are 0.2 ohm and 0.3 ohms respectively. While running as a generator, the generated emf is 250V at 1200rpm. If the machine is run as motor, it takes 4A at220V. At a certain load, the motor takes 30A at 220V. However, on load, the armature reaction weakens the field by 4%. Find the motor speed at this load.
a 220V shunt generator has an armature resistance of 0.02ohms and a shunt field resistance of 44 ohms. at rate load, the driving engine develops 62.26 hp. If the iron and friction losses amount to 1600W, how much is the current delivered to the load at this condition? (Our subject is ELECTRICAL MACHINE 1, and our lesson is Losses an Efficiency in DC Machine) (I need clean solution ma'am/sir, thank you so much)
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