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Demand Response

Energy demand fluctuates throughout the day which impacts energy prices and costs you money, utilities must always have enough energy supply to accommodate consumer energy demand. Now imagine a really hot day when everyone turns their A. C. At the same time energy demand spikes, the grid gets stressed and electricity prices go up when …

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Power System State Estimation

Power system state estimation is still a new branch of electrical power engineering, aged approximately three decades. Various research has been happening on this topic, but if I have to take a textbook to get a sound understanding, I would definitely take the book written by Dr. Ali Abur. It is concise and written in …

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Internet of Things

Brief Idea on Internet of Things (IoT): Technology, Applications, and Future Trends

The Internet of Things (IoT) refers to objects in the physical world equipped with an IP address allowing devices to communicate wirelessly to collect and exchange data. The Internet of Things has become an integral part of our lives as we can connect with the Internet even if we’re away from home or office. However, …

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thermal overload relays

Why is both RTD temperature and thermal overload protection needed?

Although both methods give protection against overload and thermal rise, both have their own pros and cons. Especially with the important objects, both methods are used because they complement each other. RTD basics We know metal has the property of varying resistivity with respect to temperature. This relationship is linear for some metals, over wide temperature …

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All About Induction Machines

Introduction Induction machines, also called asynchronous machines, can be used as generators or motors. Induction machines can be either of one or three-phase construction. The following discussion focuses on the three-phase machines and their properties. The maximum of the applications for three-phase induction machines is with power ranges varying from a few kilowatts to a …

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