1. The armature current of a 240 Volts DC Motor with a 0.05 ohm armature resistance should be limited in 300 Ampere. What resistance to be inserted if the the voltage develop in the armature is 225 volts.

1. The armature current of a 240 Volts DC Motor with a 0.05 ohm armature resistance should be limited in 300 Ampere. What resistance to be inserted if the the voltage develop in the armature is 225 volts.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Resistors

Section: Chapter Questions

Problem 1PA

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Concept explainers

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.

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1.
The armature current of a 240 Volts DC Motor with a 0.05 ohm armature resistance should
be limited in 300 Ampere. What resistance to be inserted if the the voltage develop in the
armature is 225 volts.

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