different between circuit breaker & switchgear & relays
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Answer Posted / tareq harb
relay ca be used to protect against one fault at a time
either overcurrent or undervoltage or underfrequency but
not together, can also be used in switching & control
systems.
Breakers can be used to protect againt too many abnormal
faults in the circuit at one time.
switch gear is a series breakers connected to gether to
form a complete protected bus bar with many inputs outputs.
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