IDMT Relay Settings Calculation in ETAP using IEC Formula | Relay trip co ordination

IEC Curves || Normal Inverse (NI) || Very Inverse (VI) || Extremely Inverse (EI) || Long Time Inverse (LTI)
IDMT characteristic of protection relay can be used for electrical protection system. IDMT (Inverse Definite Minimum Time) relay characteristic came into the picture in power system protection engineering when only Time grading or Current grading for relay protection co-ordination is not enough.
This video covers the basics and the advantages of IDMT i.e. Time/Current discrimination method in power system protection engineering.
This will take care of both the Time & Current discrimination method as well.
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Coordination Studies, Real Examples

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#motor
#protection
#idmtrelay
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#acb