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Question
What is meant by inverse definite mean time (IDMT)& 
definitemean time (DMT)?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
idmt means inverse definite minimum time. so in this type of
relay as the value of operand that is current increase time
taken by the relay to operate decrease. higher the current
lower is the time taken by the relay to operate. AND dmt
definite minimum time (DMT) relay take its minimum time to
operate regardless of the value of the current.
 
Is This Answer Correct ?    22 Yes 2 No
M.k.k
 
Answer
# 2
good explanation
mkk.
 
Is This Answer Correct ?    1 Yes 1 No
Hardip
 
 
 
Answer
# 3
It is IDMTL, meaning Inverse Definite Minimum Time Lag 
Is This Answer Correct ?    0 Yes 2 No
K.prakashchandra
 
Answer
# 4
The definite mean time lag in disc type EM relays is inverse
to current as the disc is faster at higher current and hence
the less time.Definite mean time lag is possible in static
relays by setting the time lag.
 
Is This Answer Correct ?    2 Yes 8 No
K.prakashchandra
 

 
 
 
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