Identification of Distribution Transformer Reliability Using the Weibull Approach at the Customer Service Unit Taman, Surabaya

The continuity of the electrical energy supply to the load is highly dependent on the electric power system's dependability. An attempt is made to maintain transformer dependability in order to guarantee appropriate distribution of electrical energy. Because of this, attempts must be made to use the Weibull distribution to assess if the transformer is in excellent condition. The MTTF value is derived from the average failure rate and serves as a reference point for the reliability rating. This is determined by the quantity of malfunctions that prevent the transformer from functioning. The results of reliability analysis using Weibull distribution on distribution transformers showed that the average failure rate was 4,72 per year, with an MTTF value of 0,23 per year, so the value The reliability obtained was 0,93. According to Croanbach's alpha, this value is classified as very reliable.