A 50 cycle, 11 kV, 3 phase alternator with earthed neutral has a reactance of 5 ohms per phase and is connected to a bus-bar through a circuit breaker. The distributed capacitance upto circuit breaker between phase and neutral in 0.01 μF. 1. Peak re-striking voltage across the contacts of the breaker 2. Frequency of oscillations 3. The average rate of rise of re-striking voltage upto the first peak A 50 cycle , 11 kV, 3 phase alternator with earthed neutral has a reactance of 5ohms per phase and is connected to a bus - bar through a circuit breaker. Thedistributed capacitance upto circuit breaker between phase and neutral in 0.01uF.1. Peak re-striking voltage across the contacts of the breaker2. Frequency of oscillations3. The average rate of rise of re-striking voltage upto the first peak

It is given that: f=50 cyclesV=11kVXL=5ohmC=0.01μF

Answered: A 50 cycle, 11 kV, 3 phase alternator…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

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A 50 cycle, 11 kV, 3 phase alternator with earthed neutral has a reactance of 5 ohms per phase and is connected to a bus-bar through a circuit breaker. The distributed capacitance upto circuit breaker between phase and neutral in 0.01 μF. 1. Peak re-striking voltage across the contacts of the breaker 2. Frequency of oscillations 3. The average rate of rise of re-striking voltage upto the first peak

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