O.V. Gnana Swathika, PhD, is a professor at the Vellore Institute of Technology, Chennai, India. She completed her post-doctoral work in 2019 at the University of Moratuwa, Sri Lanka and is a senior member of the Institute for Electrical and Electronics Engineers. Her research interests include microgrid protection, power system optimization, embedded systems, and photovoltaic systems. She has edited numerous books for Scrivener Publishing. K. Karthikeyan is the Chief Engineering Manager of Electrical Designs for Larsen & Toubro Construction, an Indian multinational Engineering Procurement Construction contracting company with over two decades of experience in electrical design. Through his work, he has immensely contributed to the building services sector in areas including airports, Information Technology Office Spaces (ITOS), tall statues, railway stations and depots, hospitals, educational institutional buildings, residential buildings, hotels, steel plants, and automobile plants in India and abroad.