Circuit Breaker Abstract

Basically, it is designed to disconnect the current if the current passing

through the breaker is higher than the allowable current. Its main parts

consist of a switch, connecting pads, and the disconnect device. Since

the breaker consists of many individual parts, the only improvement found

was to combine some of the parts into a single part.

Our group dissected a thirty-amp household Circuit-breaker. Its purpose is

to protect electrical appliances from being damaged though excessive

currents. A circuit breaker limits the amount of current that may safely

enter 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 circuit

breaker in to a non-conducting or open path condition. The closed path is

maintained until either magnetism or thermal expansion causes the circuit

The circuit breaker has several features that are worth noting in the

design discussion. First is its ability to detect various types of loading

situations. The breaker can not only open a ci

. . .
The circuit breaker operates via two mechanisms. For example, it provides

the user with an easily assessable on/off switch, fault protection against

current spike, and fault protection against heavy current draw.

A small inspection was done to determine if any parts could be eliminated

or combined to reduce the build cost, but no immediate solutions were

identified.

Operation of the circuit breaker is simple, but utilizes complex

mechanisms. Similarly for the tripping mechanism under

constant thermal expansion the expansion of the top of the bimetallic

strip causes the trigger to be pulled down which has the same effect. The circuit is placed in series between an electrical power

source such as Georgia Power and the fuse box or beginning of a home's

electrical system. The switch can be set to open or closed from the outside of the

breaker's case, but can only be set to the "tripped" position internally,

as a results of the trigger mechanism. And it

seems that there aren't many undesirable features of the unit, possibly

with the exception of cost.

On the other had it is not 100% effective and must also be manually reset

which can be problematic if it is dark and no lights are available with

which to see the fuse box. Several internal springs may also wear out

over time. Another bad point is that the circuit breaker

has many moving parts, which complicates construction. It appears that all attempts to improve or simplify the device

have been implemented and maximized, leaving the only avenue for

complexity reduction to be a change in application for the part. Limited service life is a

function of build quality. The circuit breaker also has an easily

resetable 3-position switch, and various internal safety features such as

spark arrestors and cavity vents.

The switch, which is activated internally by the trigger or externally

by the user, simply opens or closes a set of contacts which complete the

circuit.

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,

Approximate Word count = 907
Approximate Pages = 4 (250 words per page double spaced)

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