발전기 정지중 진단을 위하여 개발된 유도결합 마그네틱 프로브의 성능특성

Performance Characteristics of an Inductively Coupled Magnetic Probe Developed for Off-line Monitoring of a Rotating Machine

In order to detect exact corona discharge point at stator winding of a rotating machine, an inductively coupled magnetic probe has been developed, which consists of U-shaped and truncated manganese ferrite inductor as a helix. The measured current intensity is somewhat higher than commercially developed probe. It has been shown that the measured intensity of proposed probe is suitable for manual localization as to off-line stator winding monitoring of rotating machine.