Bukatun aikin wutar lantarki mai karewa 1. Hana hulɗa kai tsaye Lokacin da matsakaicin ci gaba da ƙarfin ƙarfin aiki Uc na mai kariyar haɓaka mai isa ya yi sama da ƙimar ac rms na 50V, waɗannan zasu cika buƙatu masu zuwa. Don hana tuntuɓar kai tsaye (ɓangarorin da ba za a iya shiga ba), za a ƙirƙira mai karewa ta yadda ba za a iya taɓa sassan rayuwar sa ba lokacin shigar da shi ƙarƙashin yanayin amfani na yau da kullun. Bugu da ƙari, mai kariyar tiyata da ake ƙira a matsayin wanda ba zai iya isa ba, za a ƙirƙira mai kariyar ta yadda, lokacin shigar da waya don amfani na yau da kullun, sassan rayuwa ba za su iya isa ba, koda bayan tarwatsa sassan da za a iya cirewa ba tare da kayan aiki ba. Haɗin da ke tsakanin tashar ƙasa da duk sassan da ke da damar samun dama da ke da alaƙa da shi za su kasance marasa ƙarfi. Ana duba yarda ta gwaje-gwaje. 2. Residual current (sauran halin yanzu) I_PE Ga duk masu ba da kariya tare da tashoshi PE, I_PE za a auna tare da duk tashoshi na mai kariyar karuwa da aka haɗa zuwa wutar lantarki na gwajin gwajin magana (UREF) daidai da umarnin masana'anta. Ana duba yarda ta hanyar gwaji, wanda baya aiki ga SPDs da aka haɗa kawai zuwa N-PE. 3. Matsayin kariyar wutar lantarki Up Ƙayyadadden ƙarfin lantarki na mai kare kari should not exceed the voltage protection level specified by the manufacturer. Compliance is checked by tests. 4. Action load test When the maximum continuous working voltage Uc is applied, the mai kare kari shall be able to withstand the specified discharge current without unacceptable changes in its characteristics. In addition, the voltage switch-type mai kare kari or combined mai kare kari shall at least be able to cut off the freewheeling current of the dry rated short-circuit current I_{Farashin SCCR}. Ana duba yarda ta gwaje-gwaje.

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Lokacin aikawa: Apr-20-2022