Conveyors Monitoring, Control and Protection Using Programmable Logic Controller
R. Vanitha 

R. Vanitha, Professor, Department of EEE, Sathyabama Institute of Science and Technology, Chennai (Tamil Nadu), India.
Manuscript received on 06 February 2019 | Revised Manuscript received on 19 February 2019 | Manuscript Published on 04 March 2019 | PP: 250-254 | Volume-7 Issue-5S2 January 2019 | Retrieval Number: ES2041017519/19©BEIESP
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Abstract: Conveyors have been the most important transport media in transferring the coal from coalmines / storage areas to Boilers in thermal power stations. The monitoring and protection of these conveyors are very important as the occurrence of faults may affect the whole power generation. The protection of the conveyors is carried out using Relay Logic methods, that have several disadvantages and hence there is a need for a new method. This paper focuses on the monitoring, controlling and protecting the conveyors from varies types of faults occurring in conveyors using programmable logic controller (PLC). Four important types of faults that occurs frequently in conveyors, such as belt sway fault, pull chord fault, zero speed fault and fire protection are considered in this work. These faults are sensed and rectified by programmable logic controller which has a high degree of safety, accuracy and easy to maintain and monitor.
Keywords: Programmable Logic Controller, Conveyors, Interlock Mode and De-Interlock Mode.
Scope of the Article: Control and Automation