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Question
what is the difference between underreach and 
overreach.what is the advantage of using overreach instead 
of underreach.explain
 Question Submitted By :: Bps
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the difference between underreach and overreach.what is the advantage of using overreach instead of underreach.explain
Answer
# 1
Underreach and overreach is the ability of distance relays
to operate below and above designed impedance.As we know
the impedance relay operates when impedence seen by the
relay is equal to designed impedance.
 
Is This Answer Correct ?    0 Yes 1 No
N K Singh
 

 
 
 
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