كهرباء - ميكانيك - اتصالات - IT | United States America (US)

Create: 2022-01-30 Update: 2024-05-04 14:10:38

30-الرمز ( test - trip )
هو مفتاح يتم الظغط عليه لاختبار سلامة القاطع
ويمكن من خلاله فصل القاطع في حال كان ذراع القاطع يحتاج الى عزم لتحريكه

31-الرمز ( Cat A )
هي قواطع يتم تركيبها بالقرب من الأحمال النهائية
ويطلب منها أداء الفصل لحظيا
اي تاثير تيارات القصر دون زمن تأخير ولا يمكن معايرة زمن الفصل
ولا ينتظر منها تحقيق الانتقائية بواسطة التراكم الزمني

وهذه خاصة بالقواطع المنمنة MCB
وبعض انواع القواطع المقولبة MCCB

32-الرمز ( Cat B )
هي قواطع يتم تركيبها في اللوحات العمومية ويطلب منها أداء الفصل بزمن تأخير
اي تأثير تيارات القصر بزمن تأخير ويمكن معايرة زمن الفصل
وينتظر منها تحقيق الانتقائية بواسطة التراكم الزمني

وهذه خاصة بالقواطع المقولبة MCCB والقواطع الهوائية ACB

33-الرمز ( N ) سعة تيار الفصل المغناطيسي أساسية

34-الرمز ( H )سعة تيار الفصل المغناطيسي عالية

35-الرمز ( L ) سعة تيار الفصل المغناطيسي عالية جدا

كهرباء - ميكانيك - اتصالات - IT

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30-الرمز ( test - trip )

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