Design And Analysis Of Automated Inspection System For Relays Fault Detection

Tai, Wai Yip (2018) Design And Analysis Of Automated Inspection System For Relays Fault Detection. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Design And Analysis Of Automated Inspection System For Relays Fault Detection.pdf - Submitted Version Download (457kB)

Abstract

Relay is an electrical switch that consists of coil and movable iron armature and contactor that act to open and close the switch. Normally the relay will degrade after operated for certain period of time. The conventional way to diagnose the relay condition is a time consuming and difficult. The aim of this project is to provide a solution to overcome the difficulty of testing a relay using the conventional way. The embedded system is designed to be able to perform the functional test and parameter test of the relay. Functional test is done to determine all the relay contacts whether it is function or not. Parameter test is done to find every pick-up and drop out voltage for all contact of the relay. The results obtain from the system need to be precise and accurate, and faster than the conventional way. The project utilize a liquid crystal display (LCD), Arduino board, keypad, device under test (DUT) adapter and interfaced board. The relay is plug into the suitable DUT adapter and then the DUT adapter in plug into the interfaced board. The LCD shows the menu and the result of the test. The keypad is to allow the user to select the options for relay testing. Lastly, the relay tester is successfully construct and able to assist in detect the faulty relay with less time taken and achieve 100% accuracy in functional test and 85% in parameter test.

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