Monitoring and Control System for Three Phase Induction Motor Using Poly Phase Multifunction Energy Metering IC ADE7758 and Zigbee Protocol
Journal Title: UNKNOWN - Year 2015, Vol 4, Issue 1
Abstract
"Induction machines are used worldwide in many suburban, commercial, engineering and utility applications. They transform electrical energy into mechanical energy. An induction motor may be part of a fan or pump or connected to some other form of mechanical equipment such as a winder, a conveyor belt or a mixer. Induction motors have existed for many years but were always limited in their application because it was difficult to control the speed of the motor. Nowadays induction motors are the preferred choice among the industrial motors due to their rugged construction, the absence of brushes, the modern power electronics, and the ability to control the speed of the motor. Induction machines are used as actuators in many industrial processes. Although induction motors are reliable, they are subjected to some undesirable stresses, causing faults resulting in failure. Monitoring of an IM is a fast up-and-coming technology for the detection of initial faults. It avoids unpredicted failure of an industrial process. Monitoring techniques can be classified as the conventional and the digital techniques This paper proposes a wireless control and monitoring system for an induction motor based on Zigbee communication protocol for safe and economic data communication in industrial fields. A module of transducers and sensors monitors the parameters of induction machine and transmits the data through Zigbee Protocol. Microcontroller based system is used for collecting and storing data and accordingly generating control signal to stop or start the induction machine through computer interface developed with Zigbee"
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Azathioprine as a Steroid Sparing Agent in Recalcitrant Type 2 Reaction
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