Comparatives Study On IDMT Overcurrent And Earth Fault Relay : Micro MK2000 And ABB SPAJ 140c

Mohd Firdaus, Mohd Noor (2009) Comparatives Study On IDMT Overcurrent And Earth Fault Relay : Micro MK2000 And ABB SPAJ 140c. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project is about comparatives study between two IDMT overcurrent and earth fault relays due to their performance of currents and timing in reacting when fault occurs in plant. Both of this relays will be tested in real time and injected with real secondary currents based on calculating fault that occurs in Measat Cyberjaya plant. In current situation, there is major loss for any factory if inherent tripping occurs. Meaning of inherent tripping are relay did not trip when fault occurs, relay trip when fault did not occurs and relay trip because starting current of machine used in factory. Usually this could inherent tripping could happen because of unskilled testing Engineer, improper setting of relays and malfunction of relay. The result of this project is compiling documentation for a setting of IDMT relays. This documentation will be an assessment for student and new engineer to starting their engineering careers.

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