Abstract

ABSTARCT (WEEK 2 - PROJECT TITLE SELECTION)

Power system protection is the most important requirement in the industrial or domestic electrical to prevent equipment from damage cause by leakage current. The ELCB is an important equipment to install at each of house, hospital, factory, or every place that need the power supply.

Earth Leakage Circuit Breaker is one type of electrical equipment that used as a protection device. The main purpose of this type of equipment is to cut off the power when the problem occurred. The main problem is, if the error occurred and there is no human that can switch on back the device due to safety reasons. The device used is mechanical switch that must be activated manually, after ELCB is being tripped it will stay off until the user push it back to the ON condition although the problem that occurred is temporary fault and occurred in one millisecond. So, it not works as automatic device that can operate automatically

This project is to develop an automatic tripping mechanism for the three phase supply system. The project output resets automatically after a brief interruption in the event temporary fault while it remains in tripped condition in case of permanent fault. The electrical substation which supply the power to the consumers, have failures due to some faults which can be temporary or permanent. These faults lead to substantial damage to the power system equipment.

The concept in the future can be extended to developing a mechanism to send message to the authorities via SMS by interfacing a GSM modem.