دانلود مقاله ISI انگلیسی شماره 54540
عنوان فارسی مقاله

MCHO - یک شاخص جدید برای شرایط عایق بندی در خطوط انتقال

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
54540 2013 9 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
MCHO – A new indicator for insulation conditions in transmission lines ☆☆
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : International Journal of Electrical Power & Energy Systems, Volume 53, December 2013, Pages 733–741

کلمات کلیدی
جریان نشتی - خازن؛ گذردهی؛ خط انتقال؛ آشکارسازی و تشخیص
پیش نمایش مقاله
پیش نمایش مقاله MCHO - یک شاخص جدید برای شرایط عایق بندی در خطوط انتقال

چکیده انگلیسی

Conventionally monitoring operating conditions of a power transmission line is accomplished by periodic inspections along this line. This monitoring allows corrective maintenance by finding faults during the inspection. But in more efficient maintenance, predictive techniques that are characterized by real-time monitoring should be employed. Such predictive techniques allow for verifying the working status of the line by using normal working models to detect faults and fault models for diagnosis. This paper presents a study that used a mathematical model appropriate for application to predictive maintenance of transmission line segments at low cost, without the need for sensors distributed along the line, and presenting a new indicator of transmission line operation conditions. By tracking the leakage current of transmission lines, this model allows for estimating the current line insulation status. Once the current line insulation status is known, it is possible to compare it against other future status and verify the progress of the insulation conditions of that line. The model uses a new indicator, called MCHO, which can detect and diagnose both normal and abnormal operating conditions of a power transmission line. This new indicator is the capacitance of the harmonic frequencies of the transmission line leakage current. The model was validated through measurements obtained on a stretch of transmission line.

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