Elektrik panolar\u0131, enerji da\u011f\u0131t\u0131m\u0131n\u0131n ve kontrol\u00fcn\u00fcn g\u00fcvenli \u015fekilde yap\u0131lmas\u0131n\u0131 sa\u011flayan sistemlerdir. Bu panolarda olu\u015fabilecek tehlikeli durumlar\u0131n ba\u015f\u0131nda k\u0131sa devre ve a\u015f\u0131r\u0131 ak\u0131m gelir.<\/p>\n
Peki, bu riskleri \u00f6nlemek i\u00e7in hangi elemanlar kullan\u0131l\u0131r?<\/p>\n
A\u015f\u0131r\u0131 ak\u0131m: <\/strong>Devreden ge\u00e7en ak\u0131m\u0131n, nominal de\u011ferin \u00fczerinde seyretmesi durumudur. Bu durum genellikle y\u00fck art\u0131\u015f\u0131, mekanik s\u0131k\u0131\u015fma, motor zorlanmas\u0131 gibi nedenlerle ortaya \u00e7\u0131kar.<\/p>\n K\u0131sa devre:<\/strong> Fazlar aras\u0131nda ya da faz ile n\u00f6tr\/toprak aras\u0131nda \u00e7ok d\u00fc\u015f\u00fck empedansl\u0131 bir ba\u011flant\u0131 olu\u015fmas\u0131yla, sistemde ani ve \u00e7ok y\u00fcksek ak\u0131m ge\u00e7i\u015fine neden olan tehlikeli durumdur.<\/p>\n Bu durumlar\u0131n her ikisi de ekipmanlara zarar verebilir, yang\u0131n riski olu\u015fturabilir ve insan hayat\u0131n\u0131 tehlikeye atabilir.<\/p>\n Bu nedenle elektrik panolar\u0131nda a\u015f\u0131r\u0131 ak\u0131m ve k\u0131sa devre ar\u0131zalar\u0131n\u0131 \u00f6nleyici \u00f6zel koruma elemanlar\u0131 yer al\u0131r.<\/p>\n Sigortalar (MCB \u2013 Minyat\u00fcr Devre Kesici) Nedir?<\/p>\n MCB, yani Minyat\u00fcr Devre Kesici, al\u00e7ak gerilim devrelerinde a\u015f\u0131r\u0131 ak\u0131m ve k\u0131sa devre durumlar\u0131nda devreyi otomatik olarak kesen bir koruma eleman\u0131d\u0131r.<\/p>\n \u00a0\u00c7al\u0131\u015fma Prensibi:<\/strong><\/p>\n Termik koruma<\/strong> (bimetal):<\/p>\n \u2013 Uzun s\u00fcreli a\u015f\u0131r\u0131 y\u00fck ak\u0131mlar\u0131nda bimetal \u0131s\u0131n\u0131r ve devreyi keser.<\/p>\n Manyetik koruma<\/strong> (bobin):<\/p>\n \u2013 K\u0131sa devre gibi ani ve y\u00fcksek ak\u0131mlarda h\u0131zl\u0131 tepki verir, an\u0131nda a\u00e7ma sa\u011flar.<\/p>\n Teknik \u00d6zellikleri:<\/strong><\/p>\n Neden Tercih Edilir?<\/strong><\/p>\n Termik Manyetik \u015ealter (TM\u015e \u2013 MCCB) Nedir?<\/strong><\/p>\n TM\u015e, yani Termik Manyetik \u015ealter, elektrik devrelerinde y\u00fcksek ak\u0131ml\u0131 devreleri korumak i\u00e7in kullan\u0131lan, ayarlanabilir ve \u00e7ok i\u015flevli bir koruma ve anahtarlama eleman\u0131d\u0131r. Genellikle end\u00fcstriyel uygulamalarda tercih edilir.<\/p>\n \u00c7al\u0131\u015fma Prensibi:<\/strong><\/p>\n Termik koruma (bimetal):<\/strong><\/p>\n \u2013 A\u015f\u0131r\u0131 ak\u0131m durumunda zaman gecikmeli a\u00e7ma sa\u011flar<\/p>\n \u2013 \u00d6rne\u011fin motor zorland\u0131\u011f\u0131nda, y\u00fck art\u0131\u015f\u0131nda<\/p>\n Manyetik koruma (bobin):<\/strong><\/p>\n \u2013 K\u0131sa devre an\u0131nda h\u0131zl\u0131 a\u00e7ma yapar<\/p>\n \u2013 Fazlar aras\u0131 veya faz-toprak k\u0131sa devrelerinde sistemi korur<\/p>\n Teknik \u00d6zellikleri:<\/strong><\/p>\n Neden Tercih Edilir?<\/strong><\/p>\n Kartu\u015f Sigortalar (NH \u2013 HRC) Nedir?<\/strong><\/p>\n Kartu\u015f sigortalar, \u00f6zellikle end\u00fcstriyel sistemlerde y\u00fcksek k\u0131sa devre ak\u0131mlar\u0131na kar\u015f\u0131 g\u00fcvenli ve h\u0131zl\u0131 koruma sa\u011flamak i\u00e7in kullan\u0131lan, tek kullan\u0131ml\u0131k koruma elemanlar\u0131d\u0131r. NH (DIN tipi) ve HRC (y\u00fcksek kesme kapasiteli) olarak adland\u0131r\u0131l\u0131r.<\/p>\n \u00c7al\u0131\u015fma Prensibi:<\/strong><\/p>\n Teknik \u00d6zellikleri:<\/strong><\/p>\n Neden Tercih Edilir?<\/strong><\/p>\n <\/p>\n Daha y\u00fcksek g\u00fc\u00e7l\u00fc sistemlerde kullan\u0131lan kompakt \u015falter (MCCB)<\/strong> ve a\u00e7\u0131k \u015falter (ACB) <\/strong>gibi geli\u015fmi\u015f koruma elemanlar\u0131 ise ba\u015fka bir yaz\u0131m\u0131z\u0131n konusu olacak.<\/p>\n (1)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 A\u015eA\u011eIDAK\u0130LERDEN HANG\u0130S\u0130 AL\u00c7AK GER\u0130L\u0130M PANOLARINDA KULLANILAN A\u015eIRI AKIM KORUMA VE\/VEYA KISA DEVRE KORUMA ELEMANLARINDAN B\u0130R\u0130 DE\u011e\u0130LD\u0130R?<\/p>\n (a)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 S\u0130GORTALAR(OTOMATLAR)<\/p>\n (b)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TERM\u0130K MANYET\u0130K \u015eALTERLER(TM\u015e)<\/p>\n (c)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 PARAFUDR<\/p>\n (d)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 KARTU\u015e S\u0130GORTALAR<\/p>\n \u2705 Do\u011fru Cevap: (c) Parafudr<\/p>\n Hay\u0131r. Parafudr<\/strong>, bir gerilim darbesi koruma eleman\u0131d\u0131r<\/strong>. Y\u0131ld\u0131r\u0131m d\u00fc\u015fmesi, \u015febeke kaynakl\u0131 ani voltaj s\u0131\u00e7ramalar\u0131 gibi durumlarda sistemdeki fazla enerjiyi topra\u011fa y\u00f6nlendirir. Haftal\u0131k Sorulara Kat\u0131l\u0131n!<\/p>\n Her hafta LinkedIn sayfam\u0131zda sekt\u00f6r profesyonellerine y\u00f6nelik teknik bilgi sorular\u0131 soruyoruz.<\/p>\n Hem bilginizi test edin, hem g\u00fcncel kal\u0131n.<\/p>\n <\/p>\n \ud83d\udc49 Haftal\u0131k sorulara kat\u0131lmak i\u00e7in t\u0131klay\u0131n:<\/p>\n \ud83d\udd17 [LinkedIn sayfam\u0131z]<\/p>\n\u00a0Elektrik Panolar\u0131nda Kullan\u0131lan Ba\u015fl\u0131ca K\u0131sa Devre ve A\u015f\u0131r\u0131 Ak\u0131m Koruma Elemanlar\u0131<\/h2>\n
1. Sigortalar (Otomatik Sigortalar \/ Minyat\u00fcr Devre Kesici \u2013 MCB)<\/h3>\n
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2. Termik Manyetik \u015ealterler (TM\u015e \u2013 MCCB)<\/h3>\n
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3. Kartu\u015f Sigortalar (NH \u2013 HRC Tipi)<\/h3>\n
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KONU TEST\u0130:<\/h2>\n
Parafudr A\u015f\u0131r\u0131 Ak\u0131m ya da K\u0131sa Devre Koruma Eleman\u0131 m\u0131d\u0131r?<\/h3>\n
\nAncak a\u015f\u0131r\u0131 ak\u0131m ya da k\u0131sa devreyi alg\u0131lamaz, devreyi kesmez.<\/strong> Bu y\u00fczden koruma s\u0131n\u0131f\u0131 farkl\u0131d\u0131r.<\/p>\n