A review on impact of distributed generation and electrical vehicles on aging of distribution transformer

In recent years, a lot of advancement took place in distributed generation (DG) and electric vehicle (EV) technology. As a result, many utilities worldwide are planning to deploy DG in their distribution system to ease the growing energy demand. Moreover, many countries are encouraging the growth of EVs to reduce carbon and other green house gas emission, limit air and noise pollution, and enhance energy security. However, in the design of traditional power systems, these technological advancements were not considered. These technologies can make an impact on the life of assets of the distribution systems. Therefore, they need to be addressed appropriately for better estimation of asset utilization. A DT is one of the major assets for any electrical distribution system. For satisfactory operation, its performance in the presence of new emerging technology should be properly investigated. This paper has reviewed the impact of these technologies on the aging along with some measure to minimize loss-of-life.