کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7167543 1462940 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The need of creating a new nominal creepage distance in accordance with heaviest pollution 500 kV overhead line insulators
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
The need of creating a new nominal creepage distance in accordance with heaviest pollution 500 kV overhead line insulators
چکیده انگلیسی
The exceptional level of pollution measured on those insulators, especially for the bottom surface for the non-soluble salt deposit density (NSDD) component, where the values are outside of the standard limit given in the currently IEC standard. The results provide important reference for the insulators design, maintenance of operational transmission line insulators and flashover warnings. It should be highlighted that results fall out of the limit of the IEC standard and that in order to plot those values in the graph the limits for the highest NSDD values have been increased from 4 to 20 g/cm2. This clearly shows the unusually high values of the NSDD components measured on those insulators. The case study has been realized on 837,000 insulators for 9000 towers in 500 kV powers lines. This clearly shows the unusual characteristics of the coast and desert environment of the 500 kV overhead lines, and the needs of update in the IEC standards has been researched.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 86, April 2018, Pages 21-32
نویسندگان
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