Mene ne wani RCD

Ba tare da sanin abin da RCD (saura yanzu na'urar), don tabbatar da lafiya aiki na lantarki kayan da wuya. Za ka iya ji sau da yawa labaru game da yadda serviceable Injin lantarki kona a lokacin da shãfe a lokacin aiki. A wannan abu ya faru idan a lokaci guda shãfe jiki aiki kwamfuta da radiators. Wannan sabon abu ne ya wanzu, kuma ba wata matsalar aiki na samfur, amma wata alama ce ta lantarki kayan aiki ba tare da grounding.

Muhimmanci ƙara lantarki damar RCD.

Mene ne wani RCD? Wannan na'urar ne wani babban gudun kewaye wato Ubangiji Yesu Kristi, wanda dogara ne a kan gwada igiyoyin da suka dace da kaya da kuma komawa zuwa cibiyar sadarwa, yin bude kewaye a lokacin da rashin daidaito (bambanci halin yanzu bayyana). Wannan shi ne, idan wani wuri a cikin kare sashe na layin yana yayyo a cikin ƙasa, da na'urar gano shi da kuma dokar ta-Karfafa cikin layi.

La'akari da manufa na RCD. A zuciya na na'urar ne a halin yanzu gidan wuta, kuma ake kira bambanci. Ya kunshi uku windings: primary (L1) da sakandare (L2), da bi, hade a cikin lokaci discontinuities da kuma tsaka tsaki wayoyi, da kuma na uku (L3) an haɗa zuwa jawo inji. Dangane da kisan inji za a iya bayar da high ƙwarai gudun ba da sanda (RCD electromechanical irin) ko kayan lantarki, yawanci a comparator da wani amfilifa (E-type). Wannan jawo inji aka mechanically guda biyu zuwa ga actuating drive da ikon hutu lambobi.

Lokacin da kaya da aka haɗa ta RCD ta hanyar Tuddan L1 da L2, a halin yanzu gudana. Tun a al'ada aiki da darajar halin yanzu kawota ga mabukaci daidai exiting, sa'an nan su duka Magnetic juyi generated ne neutralized da kuma shi ne sifili (da windings ne kusa, yanzu ne directed oppositely). Saboda haka, da nada L3 ba wani sakamako. Mode na aiki cin zarafi canza a lokaci guda taba jikin mutum a kasa da kuma lalace naúrar a karkashin irin ƙarfin lantarki. A wannan yanayin, cikin lokaci madugu (L1 Tuddan) wani ƙarin halin yanzu wucewa na yanzu Tuddan L2. A gaskiya ma, akwai bambanci, saboda halin yanzu faruwa a cikin da'ira na zamani shugaba, za su shiga cikin ƙasa ta hanyar da mutum, kuma ba ya koma zuwa ga RCD. Magnetic juyi ya wuce compensating nada L1 L2 kwarara mataki, bi da bi, da generated da Magnetic juyi Halicci Tuddan L3 kananan halin yanzu ishe aiki na gudun ba da sanda ko da lantarki circuitry da actuation na actuator ga keta ikon lambobin sadarwa.

Wani mutum wanda ya san abin da RCD, haƙĩƙa, Yanã sanin yadda za a yi wani sauki rajistan shiga ta yi. A cikin hali na wani RCDs gabatar da "Test" button, danna kan abin da za ka iya gwada aiki na na'urar. Danna maɓalli a takaice shunts daya daga cikin windings, cire shi daga cikin kewaye da generated da diyya Magnetic juyi, don haka da na'urar da aka jawo.

A gaskiya tambaya - yadda za a haɗa da RCD? The na'urar yi da za a saka a jummai da wani atomatik canji, domin ba ya dauke da thermal da electromagnetic sake, bi da bi, ba ya kare da obalodi (thermal) da kuma high-halin yanzu gajarta da'ira (SC). Laifi halin yanzu yana iya lalata RCD, kamar yadda a cikin wannan yanayin na aiki da yayyo ba ya faruwa, amma yanzu darajar da aka karu zuwa ma high dabi'u. Af, wannan shi ne dalilin da ya sa yana da muhimmanci a zabi a lokacin da sayen wani stock tare da RCD rated halin yanzu. Alal misali, idan da na'ura ne aka yi nufi ga 16 Amp, da RCD dole ba kasa da 25 amperes. A sauki sharuddan, da rated halin yanzu na RCD - halatta halin yanzu ga gyara na ta conductors.

Babu shakka, a cikin lokaci, shi ne amfani ba kawai don gane tambaya, abin da yake cikin RCD, amma kuma a iya amfani da shi a cikin gidansa. Bayan duk, wannan shi ne wani ƙarin tsaro ga dukkan 'yan uwa.