Assessment Electric Reliability and Quality in Distribution System of Provincial Electricity Authority A Case Study of 115 KV Distribution System for Suranaree University of Technology

Abstract

This paper illustrates stability and quality of electric distribution system were assessed based on PEA standard. The case study is 115 kV distribution system of Suranaree University of Technology is applied. The system conducted a patrol of 115 kV is main transmission lines and 22 kV is backup circuits. The statistics data were compared with SAIFI and SAIDI to confirm reliability and quality standards. The instruments equipment is instated at 115 kV power stations in order to assessed analysis power quality. The result, power quality is pass the service quality standard, as well as proposing strategies to improve the distribution system for urgent, medium and long term periods in order to ensure the highest stability of the distribution line.