G1 DC arcs are to be interrupted by increasing theresistance interruption method in which resistance ofthe arc is increased so that the arc voltage can no longermaintain the current and the arc is extinguished.• Size of DC circuit breaker increases as the voltage levelincreases.• AC arcs current reduces to zero in each cycle (2 times)If the circuit breaker contacts are opened at timewhen the current passed through zero and dielectricstrength of the medium is build up rapidly so that arccannot strike again then arc can be extinguishedsuccessfully.By thermal-action (double metal components) for longdelay overload protection, the source of its action as 12R,AC RMS and DC current equal to the average, there is noneed to use any restructuring. However, the largecurrent size, to the current transformer secondarycurrent heat who can not be used due to transformercan not be used on DC circuits. Release long delay if theoverload is the use of electromagnetic type (hydraulictype, that is, oil cup), then the delayed releasecharacteristics to change, the minimum operatingcurrentto110%-140% bigger,sothewholeelectromagnetic Release not be used for DC circuits(such as the use will have to re-design).2.short circuit protection.What would you recommend, creating a separatenew system for the online storefront orincorporating elements of the online storefront intothe current process model? Please explain thereasoning.

Answered: Image /qna-images/answer/35f59181-b0a2-42b1-9ead-c1ac4cc0d800.jpg

DC arcs are to be interrupted by increasing the resistance interruption method in which resistance of the arc is increased so that the arc voltage can no longer maintain the current and the arc is extinguished. • Size of DC circuit breaker increases as the voltage level increases. •AC arcs current reduces to zero in each cycle (2 times) If the circuit breaker contacts are opened at time when the current passed through zero and dielectric strength of the medium is build up rapidly so that arc cannot strike again then arc can be extinguished successfully. By thermal-action (double metal components) for long delay overload protection, the source of its action as 12R,

DC arcs are to be interrupted by increasing the resistance interruption method in which resistance of the arc is increased so that the arc voltage can no longer maintain the current and the arc is extinguished. • Size of DC circuit breaker increases as the voltage level increases. •AC arcs current reduces to zero in each cycle (2 times) If the circuit breaker contacts are opened at time when the current passed through zero and dielectric strength of the medium is build up rapidly so that arc cannot strike again then arc can be extinguished successfully. By thermal-action (double metal components) for long delay overload protection, the source of its action as 12R,

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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