Title |
A Study on the UHF PD Sensor and Novel Pattern Analysis Technology for Diagnosis of the High Power Apparatus |
Authors |
강원종 ; 이창준 ; 강윤식 ; 이희철 ; 박종화 |
Keywords |
UHF PD ; GIS ; φ-f-q analysis ; hole type sensor ; injection type sensor |
Abstract |
This paper describes investigations of the UHF(Ultra High Frequency) PD(Partial Discharge) measuring technology designed for monitoring of PD in high power apparatus. Based on the spiral antenna theory, the hole type sensor for GIS with metal flange spacer and injection type sensor for oil filled transformer are developed. The experimental results show measurement characteristics of the PD sensor for several artificial defects in gas-insulated system(GIS) and oil transformer. Moreover, we proposed the new φ-f-q method for the purpose of condition assessment of high power apparatus. |