The clamp meter is an instrument to measure the flow of current through a cable, without the need to connect it in series, as is the case with an ammeter. This is known as a current transformer. We want to design a clamp meter to measure currents up to 100 A using a 1 V-full scale voltmeter as a sensor. Consider that the core of the torus has a permeability u 200μο 1. Calculate the number of turns N so that when a current of 100 A (rms), 60HZ passes, the scale measures 1 V (rms). 2. If you don't want to use a toroid with an iron core, but a plastic one with the same dimensions as the previous one. How many turns would it take to obtain the same measurement as the previous case?

The clamp meter is an instrument to measure the flow of current through a cable, without the need to connect it in series, as is the case with an ammeter. This is known as a current transformer. We want to design a clamp meter to measure currents up to 100 A using a 1 V-full scale voltmeter as a sensor. Consider that the core of the torus has a permeability u 200μο 1. Calculate the number of turns N so that when a current of 100 A (rms), 60HZ passes, the scale measures 1 V (rms). 2. If you don't want to use a toroid with an iron core, but a plastic one with the same dimensions as the previous one. How many turns would it take to obtain the same measurement as the previous case?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter33: Single-phase Motors

Section: Chapter Questions

Problem 1PA

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