Ground Fault Circuit Interrupter (GFCI)

Zilla Lenni, Razlan (2006) Ground Fault Circuit Interrupter (GFCI). Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

A ground fault circuit interrupter (GFCI) is the combination of electrical device which protects personnel by detecting potentially hazardous ground faults and quickly disconnecting power from the circuit. A potentially dangerous ground fault is any amount of current above the level that may deliver a dangerous shock. GFCI -works by comparing the amount of electrical current coming into a circuit through live wire with the amount leaving through the neutral wire. If more current enters the circuit through live wire than leaves through neutral wire, there is a current leak or ground fault. The objectives of the project is to provide a protection system for critical building such as hospital, control room, including the building of Kuala Lumpur Stock Exchange ( KLSE ) and also to provide a prototype for the purpose of teaching and learning. A prototype of GFCI consists of 240 V wiring and controlled circuit. Circuits are simulated using OrCad. Only the control circuit is being implemented in the hardware due to constraints which is discussed in chapter 5 later. Simulation, hardware and calculation results show similarity and as a conclusion, this project has achieved its objectives which are to design a prototype circuit of GFCI.

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