In a brake test of an elevator door, the ammeter and voltmeter measuring the input read 34 A at 220 V. The speed of the motor is found to be 910 rpm and the balance on the 0.61 m brake arm reads 11.9 kg. The dead weight of the arm is found to be 1.09 kg. What is the hp output of the motor?

In a brake test of an elevator door, the ammeter and voltmeter measuring the input read 34 A at 220 V. The speed of the motor is found to be 910 rpm and the balance on the 0.61 m brake arm reads 11.9 kg. The dead weight of the arm is found to be 1.09 kg. What is the hp output of the motor?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

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In a break test of an elevator door, the ammeter and voltmeter measuring the input read 34 A at 220 V. The speed of the motor is found to be 910 rpm and the 0.61m break arm reads 11.9kg. the dead weight of the arm is found to be 1.09kg. what is the hp output of the motor?
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