Curcuit 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

. . .
This reaction may take a longer amount of

time to open the circuit, but is designed to provide the user with a short

time of extended current draw through the circuit before the breaker

opens. The

circuit breaker's best point is that the device is effective and compact.

Operation of the circuit breaker is simple, but utilizes complex

mechanisms. And, because there are may small parts that fit integrally with

each other, manufacturing costs may be inflated. Once the breaker has been tripped

internally, it must be reset externally by switching it off, and then back

on. Limited service life is a

function of build quality.

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. 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 mechanism for tripping the circuit during a high peak value

is magnetism.

The features enable the breaker to do several jobs at once, eliminating

the need for multiple elements in the circuit. Because of the complexity of the inner

workings, manufacturability is more difficult, thus raising costs. 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. The

circuit is tripped or opened when either a high peak current exceeds the

rated value of the circuit as when under constant thermal expansion the

circuit experiences small spikes in the current that exceeds the amperage

rating.

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.

Common topics in this essay:
Device Description, Georgia Power, , circuit breaker, current draw, fault protection, trigger mechanism, thermal expansion, limited service life, constant thermal expansion, fuse box, releasing switch, constant thermal, electrical system, service life,

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

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