AN AUTOMATED ELECTRICAL PROTECTION SYSTEMFOR THREE PHASE SYSTEM

• Main Author: Idris, Nazri
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2013
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://utpedia.utp.edu.my/13481/1/nazri.pdf; http://utpedia.utp.edu.my/13481/

Continuous electricity supply is one of the critical issues today. However, due to the internal and external disturbance, fault problem might be occurring in an electricity system resulting disconnection an electricity supply. Fault may occur due to short circuit, ground fault or overloading. Tripping of ELCB might bring safety issues if the house is left unoccupied within a time. Operation of some critical equipment will be stop immediately such as refrigerator which will lead to food damage. The problem is when the ELCB will turn ON again manually if the occupant were not aware with this problem and not turn up to the house within a time period. Thus, an Automated Protection System for Three Phase System is being developed to overcome an electricity trip problem. The idea is to compare the value of current at live wire and neutral wire. If the difference is bigger than preset value, the location of fault will be determined. When the location of fault is determine, the fault MCB can be isolated. The automatic system will be able to detect and isolate the fault in order to ensure the power continuity in the building and avoid any property loses.