Big Market Research : Global Transformerless UPS Market – Trends, Size, Share, Trends, Demand, Report, Opportunities and Forecast 2015 -2019 br To Get More Details @ br A transformerless UPS is an electrical equipment that provides power to loads during power outages or failure of the main power supply. A transformerless UPS does not contain power line frequency magnetics such as a transformer or inductor. It is an evolving technology under the family of UPS and has several advantages over transformer-based UPS such as small size and low weight, low carbon footprint, and low capex.