0 sib lawv liag tam sim no Micro transformer Neutral taw av thiab cov tua hluav taws tua hluav taws xob av

Kev xaiv ntawm qhov sib piv ntawm 0 qhov kev sib tw me xaav me me tam sim no mus rau hauv av system ntawm Neutral pointing grounding thiab Arc dab coil hais.

Thaum lub zog tam sim no rau hauv no yog ib qho loj, los yog thaum pib qhov tsawg tshaj plaws tam sim no rau nws txoj kev tiv thaiv tsawg, nws yuav tsum tau them nqi rau kev xaiv ntawm tus nqi ntau dua ntawm 0 raws li tam sim no micro-transformer, xws li 50 / 1, 100/1, 100/5, 150/5 thiab saum toj saud. Txawm li cas los xij, nyob hauv qhov nruab nrab ntawm qhov nruab nrab ntawm qhov av tsis tso cai rau feem ntau ntawm 10A, ntawm qhov no, qhov 10A hauv qab no yuav tsum tau tsiv tawm. ARC qhov hluav taws xob co cua grounding system vim yog qhov inductance tam sim no thiab kev tsis txaus siab tam sim no hais lus, feem ntau yog hais lus, uas yog, them sai sai tsis tau tshaj 10A av tam sim no (feem ntau yog compensated, qhov tseeb grounding tam sim no yog twb inductive tam sim no) siv (qee zaum nrog siab rhiab 0 sib lawv liag tam sim no transformer tsis muaj kev tiv thaiv, thiab nws cov kev sib txuas nrog). Txawm li cas los xij, hauv qhov kev siv saum toj no, yuav tsum muaj tus nqi taag, qhov nqi ntawm ≤ 10a, xws li cov nqi ntawm ib qho tam sim no 5 A, lub sijhawm no yuav tsum xav txog 100/ 5a lossis 20 / 1A, thaum lub sijhawm tam sim no 5 A, ob zaug tam sim no 0.25A, feem ntau rau kev tiv thaiv kev pib ntawm kev pib tam sim no.

Thaum nws txoj kev tiv thaiv ntawm qhov pib tsawg tshaj tam sim no> 0.25a tuaj yeem xaiv 75/5, 50/5, 15/1, 10/1 ntawm tus nqi sib txawv me ntsis, cov kev hloov ntawm 0 raws li tam sim no cov micro-transformer tam sim no xaiv qhov tag nrho hom, txwv tsis pub lub cav yog tsawg dua. Rau qhov kev xaiv ntawm qhov kev sib piv ntawm cov kab dav dav dav grounding system, nws yog hais txog ib theem ntawm luv luv luv ntawm qhov nruab nrab qhov system grounding. Qhov sib txawv ntawm qhov sib piv yuav raug xaiv loj dua: 150/5, ntau tshaj 150/1 ntawm qhov sib piv, tsis tuaj yeem me me, tsis txhob qog qhov tsis muaj tseeb tam sim no.

Nco ntsoov tias kab 0 (N) tsis tuaj yeem dhau ntawm CT. 0 sib lawv liag tam sim no hauv micro-transformer hauv ob lub sij hawm xaiv tam sim no, raws li kev cai hauv lub teb chaws yuav tau muaj 1 A, 2 A, 5 a. Xav tias qhov xoom-raws li tam sim no cov micro-transformer tam sim no feem ntau me me piv, ces thaum siv tiag, yuav tsum xyuam xim rau kev xaiv 1 A, uas yog los txhim kho lub peev xwm.