Intelligent Contactor Coil Drive Design For Soft Switching Of Load With Power Saving
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
Optimized contactor coil drive design and its intelligent realization with AC 110-240VAC input voltage is introduced in this project, the hardware and software design are emphasized especially around the commonly used 8 bit PIC microcontroller & IDE MPLAB. The use of power electronic switching device like MOSFET to control and adjust the voltage on the contactor’s coil with PWM (Pulse Width Modulation) phenomenon, such that contactor works reliable and stable with a wide range AC (AC110~240V). This way contactor can be used in all the voltage class which solves the problem of voltage variation & exceed voltage case with less power consumed for the coil operation & increased reliability. The hardware design consists of a microcontroller PIC18F2520 with following module: 1. Power supply and Voltage measuring circuit with coil. 2. PWM control circuit 3. Freewheeling energy circuit This design ensure contactor to save coil power consumption, silent operation, less arc or no arc break, communication (Optional). The test results indicates more accurate and effective with less coil power & increased reliability operations in industrial application like Steel plant, Arc Furnace, Ball Mill, Cement Plant like areas as easy & more power saving option.
Authors and Affiliations
Mr. Prashant A Rakhunde, Prof. J. K. Singh
Keywords
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