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A 2000/5 A CT has 28.45 cm2 and secondary resistance 0.31 ohm .The maximum primary current for the CT is 40K A at 50HZ with with relay burden 1.8 and lead resistance 0.2 ohm respectively. 1- Calculate E, flux density, Check if the CT is saturating ? 2- Find the VA output required for CT of 5A when burden consist of realy requiring 10 VA with lead resistance 0.1 ohm. 3- State the advantges and limitation of numerical relay?

A 2000/5 A CT has 28.45 cm2 and secondary resistance 0.31 ohm .The maximum primary current for the CT is 40K A at 50HZ with with relay burden 1.8 and lead resistance 0.2 ohm respectively. 1- Calculate E, flux density, Check if the CT is saturating ? 2- Find the VA output required for CT of 5A when burden consist of realy requiring 10 VA with lead resistance 0.1 ohm. 3- State the advantges and limitation of numerical relay?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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A 2000/5 A CT has 28.45 cm2 and secondary resistance 0.31 ohm.The maximum primary current for the CT is 40K A at 50HZ with with relay burden 1.8 and lead resistance 0.2 ohm respectively. 1- Calculate E, flux density, Check if the CT is saturating ? 2- Find the VA output required for CT of 5A when burden consist of realy requiring 10 VA with lead resistance 0.1 ohm. 3- State the advantges and limitation of numerical relay?
Transcribed Image Text:A 2000/5 A CT has 28.45 cm2 and secondary resistance 0.31 ohm.The maximum primary current for the CT is 40K A at 50HZ with with relay burden 1.8 and lead resistance 0.2 ohm respectively. 1- Calculate E, flux density, Check if the CT is saturating ? 2- Find the VA output required for CT of 5A when burden consist of realy requiring 10 VA with lead resistance 0.1 ohm. 3- State the advantges and limitation of numerical relay?
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