Design of an innovative transformer load management in taipower

In this paper, an innovative transformer load management system has been designed to determine the daily power profile of distribution transformers. A narrow-band power line carrier (PLC) based identifier has been designed and developed to support the identification of customers by each distribution transformer. The monthly energy consumption and the service type of customers are then retrieved from the customer information system (CIS). The hourly power consumption of each customer is solved by considering the monthly energy consumption and the typical load pattern of the customer. The peak loading of each transformer is determined by the integration of power consumption of all customers served. The program developed in this study can effectively assist electric utilities for the evaluation of loading factors of distribution transformers to prevent the burn out of transformers caused by overloading problem. The operation efficiency of distribution systems can also be enhanced by loading balance of distribution transformers.