Circuit Breaker Abstract
A circuit breaker was examined to determine how it works.Basically, it is designed to disconnect the current if the current passingthrough the breaker is higher than the allowable current. Its main partsconsist of a switch, connecting pads, and the disconnect device. Sincethe breaker consists of many individual parts, the only improvement foundwas to combine some of the parts into a single part.Our group dissected a thirty-amp household Circuit-breaker. Its purpose isto protect electrical appliances from being damaged though excessivecurrents. A circuit breaker limits the amount of current that may safelyenter a household electrical system via a predetermined amperage rating.It is placed in series between your house and the provided electricity.Any current in excess of the rated current amount will trip the circuitbreaker in to a non-conducting or open path condition. The closed path ismaintained until either magnetism or thermal expansion causes the circuitThe circuit breaker has several features that are worth noting in thedesign discussion. First is its ability to detect various types of loadingsituations. The breaker can not only open a ci
The circuit breaker operates via two mechanisms. For example, it providesthe user with an easily assessable on/off switch, fault protection againstcurrent spike, and fault protection against heavy current draw. A small inspection was done to determine if any parts could be eliminatedor combined to reduce the build cost, but no immediate solutions wereidentified. Operation of the circuit breaker is simple, but utilizes complexmechanisms. Similarly for the tripping mechanism underconstant thermal expansion the expansion of the top of the bimetallicstrip causes the trigger to be pulled down which has the same effect. The circuit is placed in series between an electrical powersource such as Georgia Power and the fuse box or beginning of a home'selectrical system. The switch can be set to open or closed from the outside of thebreaker's case, but can only be set to the "tripped" position internally,as a results of the trigger mechanism. And itseems that there aren't many undesirable features of the unit, possiblywith the exception of cost. On the other had it is not 100% effective and must also be manually resetwhich can be problematic if it is dark and no lights are available withwhich to see the fuse box. Several internal springs may also wear outover time. Another bad point is that the circuit breakerhas many moving parts, which complicates construction. It appears that all attempts to improve or simplify the devicehave been implemented and maximized, leaving the only avenue forcomplexity reduction to be a change in application for the part. Limited service life is afunction of build quality. The circuit breaker also has an easilyresetable 3-position switch, and various internal safety features such asspark arrestors and cavity vents. The switch, which is activated internally by the trigger or externallyby the user, simply opens or closes a set of contacts which complete thecircuit.
Common topics in this essay:
Device Description,
Georgia Power,
,
circuit breaker,
current draw,
thermal expansion,
trigger mechanism,
fault protection,
limited service life,
constant thermal expansion,
service life,
fuse box,
amperage rating,
constant thermal,
releasing switch,
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Acceptance Essays
