메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
(Hyosung Heavy Industries) (Hyosung Heavy Industries) (Hyosung Heavy Industries)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제75권 제11호
오류 신고하기

피인용 0

검색

    초록·키워드

    When a high-voltage (HV) induction motor is disassembled for stator winding maintenance, moisture ingress frequently occurs on the winding surfaces due to rapid ambient humidity changes. Although operational practices involve hot-air drying followed by insulation resistance and diagnostic tests up to the rated AC voltage, a detailed comparative analysis regarding the degradation stage is required. This paper presents a comparative analysis of insulation diagnostic parameters for two distinct stator windings under both dry and moisture-absorbed conditions : an aged 18-year-old HV motor (336 kW, 4.0 kV) and a newly manufactured HV motor (1,000 kW, 6.6 kV). AC current, dissipation factor (tanδ), capacitance, and partial discharge (PD) magnitudes were measured with increasing applied voltage. The experimental results reveal that while both motors exhibit elevated values under moisture-absorbed conditions compared to their dry baselines, the aged motor shows significantly higher sensitivity and distinct PD phase patterns. These findings demonstrate that the combined analysis of tanδ and PD characteristics can effectively distinguish between transient environmental moisture absorption and permanent insulation degradation, providing critical indicators for HV motor asset management.

    최근 본 자료 전체보기