{"id":52444,"date":"2015-10-16T16:39:34","date_gmt":"2015-10-16T04:39:34","guid":{"rendered":"http:\/\/www.irantahgig.ir\/?p=52444"},"modified":"2015-10-16T16:39:34","modified_gmt":"2015-10-16T04:39:34","slug":"%d8%a7%d8%b1%d8%b2%db%8c%d8%a7%d8%a8%db%8c-%d9%85%d8%b4%d8%ae%d8%b5%db%80-%d9%88%d9%84%d8%aa%d8%a7%da%98-%d8%aa%d8%ae%d9%84%db%8c%db%80-%d9%85%d9%82%d8%b1%d9%87%e2%80%8c%d9%87%d8%a7%db%8c-%d8%a8%d8%a7","status":"publish","type":"post","link":"http:\/\/www.irantahgig.ir\/?p=52444","title":{"rendered":"\u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0645\u0634\u062e\u0635\u06c0 \u0648\u0644\u062a\u0627\u0698 \u062a\u062e\u0644\u06cc\u06c0 \u0645\u0642\u0631\u0647\u200c\u0647\u0627\u06cc \u0628\u0627 \u0628\u0631\u0641 \u062a\u062c\u0645\u0639 \u06cc\u0627\u0641\u062a\u0647 \u0628\u0631\u0627\u06cc \u062e\u0637\u0648\u0637 \u0627\u0646\u062a\u0642\u0627\u0644 \u0647\u0648\u0627\u06cc\u06cc\u060c \u0628\u062e\u0634\u06f3 -\u062a\u0633\u062a \u0648\u0644\u062a\u0627\u0698 \u062a\u062e\u0644\u06cc\u06c0 \u0645\u0642\u06cc\u0627\u0633 \u06a9\u0627\u0645\u0644 \u06f1\u06f5\u06f4 \u06a9\u06cc\u0644\u0648\u0648\u0644\u062a\u06cc \u0645\u0642\u0631\u0647\u200c\u0647\u0627\u06cc \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0628\u0631\u0641 \u062a\u062c\u0645\u0639 \u06cc\u0627\u0641\u062a\u0647"},"content":{"rendered":"

Evaluation of flashover voltage property of snow accreted insulators for overhead transmission lines, part III-154 kv full-scale flashover voltage test of snow accreted insulators<\/span><\/p>\n

\u062a\u0627\u0631\u06cc\u062e:<\/strong> \u06f2\u06f0\u06f1\u06f4<\/span><\/p>\n

\u067e\u0627\u06cc\u06af\u0627\u0647:\u00a0<\/strong>IEEE Xplore<\/span><\/span><\/p>\n

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\"OK\"<\/span><\/p>\n

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<\/span><\/p>\n

\u0646\u0627\u0645 \u0645\u062c\u0644\u0647:\u00a0<\/strong>Dielectrics and Electrical Insulation<\/span><\/span><\/p>\n

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\u0686\u06a9\u06cc\u062f\u0647 \u0627\u0646\u06af\u0644\u06cc\u0633\u06cc<\/span><\/h3>\n

In December 2005, Japan experienced a major outage in Niigata Kaetsu area due to a large amount of wet snow mixed with sea-salt accreted on several transmission line insulators. To clarify the causes of the snow-induced outage and increase reliability of the networks, a 154 kV class full-scale snow test procedure to evaluate various insulator designs was developed, and artificial flashover voltage tests of snow accreted insulators were carried out. High voltage flashover tests showed that the flashover voltage of both long-rod and cap & pin insulators was decreased with the increase of snow conductivity. Also, cap & pin insulators showed significantly higher flashover voltage than long-rod insulators. Thus substitution of long-rod insulators with cap & pin insulators appears to be reasonable as a countermeasure against snow induced flashovers<\/span><\/p>\n

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Homma, H., Yaji, K., Aso, T., Watanabe, M., Sakata, G., Dernfalk, A., & Gutman, I. (2014). Evaluation of flashover voltage property of snow accreted insulators for overhead transmission lines, part III-154 kv full-scale flashover voltage test of snow accreted insulators. Dielectrics and Electrical Insulation, IEEE Transactions on, 21(6), 2568-2575<\/span><\/p>\n

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