| Title |
Establishment of Diagnostic Criteria in the Preventive Diagnostic System for the Power Transformer |
| Authors |
권동진(Kweon Dong-Jin) ; 구교선(Koo Kyo-Sun) ; 곽주식(Kwak Joo-Sik) ; 우정욱(Woo Jung-Wook) ; 강연욱(Kang Yeon-Wook) |
| Keywords |
Preventive Diagnostic System ; Transformer ; Preventive Diagnostic Criteria ; Algorithm ; Substation |
| Abstract |
The preventive diagnostic technique prevents transformers from power failure through giving alarm and observing transformers in service. And it helps to establish the plan for optimum maintenance of the transformer as well as to find location or cause of fault using accumulated data. Data detection and experience of the preventive diagnostic system need to establish the preventive diagnostic algorithm regarding interrelationship between detected data and deterioration of equipment. Therefore in-depth analysis about the preventive diagnosis system is required. KEPCO has adopted the preventive diagnostic system at nine 345kV substations since 1997. Techniques for component sensors of the preventive diagnosis system were settled but diagnosis algorithm, diagnostic criteria and practical use of accumulated data are not yet established. This paper, to build up the base of preventive diagnostic algorithm for the Power transformer. investigated the preventive diagnostic criteria for the power transformer. |