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molded case circuit breaker maintenance
n/a
4
Electrical Engineering
Professional
11/19/2014
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Term
define circuit breaker
 Definition
a mechanical switching device capable of making,carrying and breaking current under normal conditions,and admormal conditions. such as short circuit, ground, or overload
Term
identify the 2 ways that a breaker can operate
 Definition
manual operation and automatic operation
Term
describe how the contacts in a typical circuit breaker are closed
 Definition
it detects a fault or abnormal condition and interrupts current flow,
Term
factors in extinguishing arcs
 Definition
speed, distance,cooling
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