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AUTOMATED ELECTRICAL PROTECTION SYSYEMS – APPLIED FOR THREE-PHASE SYSTEM

Rozani, Haris Bin (2012) AUTOMATED ELECTRICAL PROTECTION SYSYEMS – APPLIED FOR THREE-PHASE SYSTEM. Universiti Teknologi PETRONAS.

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Abstract

Continuous supply of electricity to domestic building is a major concern for the consumers. The consumers need a continuous electricity supply to their appliances such as refrigerator, aquarium and their alarm system. Tripping of Earth Leakage Circuit Breaker (ELCB) will break the supply to all the appliances. An automatic three-phase system is required to restore the supply to the appliances by turn on back the ELCB. But when there is a permanent fault in the system, the ELCB cannot be turned on back to normal because it will trip again due to the fault. So the objective of the project is to develop a system to detect the location of permanent fault. The location of the fault is important to be determined in a first place in order to isolate the fault from the system. So the fault MCB will turn off and ELCB can be reclosed back to normal position to let the appliances have the electricity supply. The idea is when the location of fault is determined, an automatic system to isolate the MCB that has fault can be developed. So when the MCB that has fault has been isolated, the ELCB can be turned on without tripping again. The system that has been developed using the microcontroller will compare the value of current at live wire and the value of current at neutral wire. If the difference is more than preset value, the system will show the detection in so the location of fault is determined. Thus, the prototype have been made. Finally, based on the capability of this project and the reasonable cost, it is possible to commercialize it to the market.

Item Type: Final Year Project
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: UNSPECIFIED
Depositing User: Users 1278 not found.
Date Deposited: 02 Oct 2012 15:43
Last Modified: 25 Jan 2017 09:40
URI: http://utpedia.utp.edu.my/id/eprint/3817

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