Wese munhu angangove akajairana nemagetsi emagetsi metres. Mazuvano, smart metres anowanzo shandiswa kuyera uye kubhadharisa magetsi emumba. Kana iwe ukanyatsotarisa, uchaona kuti pane parameter 5 (60) yakanyorwa munzvimbo yakakurumbira yemamita emagetsi emagetsi.

Semuenzaniso, parameter mudenderedzwa dzvuku pamufananidzo uri pamusoro: 5 (60) A. Tichitarisa pachikwata, tinoziva kuti chakanyorwa sechizvinozvino, saka hukama huripo pakati pemafungu maviri aya? Chii chinoitika kana ikozvino yapfuudzwa? Ngatitaurei pamusoro pezvinoreva macurrents maviri maererano nemabhuraketi ekunze (5) nemukati memabhuraketi (60).
Ikozvino mumabhuraketi
Ikozvino mumaparentheses - 60A mumuenzaniso, inoreva iyo yakawanda yakarongwa ikozvino yemamita emagetsi. Yakasiyana nemimwe michina, iyo yakayerwa ikozvino yemamita emagetsi emagetsi inokanganiswa zvakanyanya nemamiriro ekunze, saka imwe margin inowanzosiiwa kana ichibva mufekitori - iyo chaiyo yepamusoro yakayerwa ikozvino 120% yeiyo yakatarwa ikozvino. Naizvozvo, kana iyo nhamba iri mumaparenthesi iri makumi matanhatu, iyo yepamusoro yakayerwa ikozvino 72A - kana isiri yakanyanya hutsinye nharaunda, kukanganisa kweiyo yakanyanya kurongeka ikozvino hakuzosviki 20%. Naizvozvo, iyo yepamusoro yakayerwa ikozvino yemamita yakanyorwa ne 60A kazhinji inenge 66A mukushandiswa chaiko.
Chii chinoitika kana kukosha uku kukapfuudzwa? Mhinduro yacho zviyero zvisina kururama - zvichida zvakanyanya, zvichida zvishoma.
Current outside brackets
Iyo 5 iri kunze kwezvibodzwa pano inonzi basic current, inonziwo calibration current. Inotaridzirwa nekutanga ikozvino kwemamita emagetsi emagetsi - iyo shoma ikozvino inokosha inobvumira mita yemagetsi kuti irambe ichitenderera uye ichiramba ichiyera. Iyo yekutanga ikozvino ye general smart mita ndeye 0.4% yeyakayerwa ikozvino. Ndiko kuti, mita ine chiyero chemazuva ano che5A ichabhadharwa chero bedzi ikozvino mumatunhu inosvika 0.02A kana iri kushandiswa. Pachave nereshiyo pakati peiyo yakayerwa ikozvino uye yakanyanya kurongeka ikozvino, senge 5 (60) A, inova 4 nguva hukama. Iyi reshiyo inodaidzwa kuti “load wide”. Kazhinji, pane 2 times, 4 times, 6 times, 8 times kana even more than ten times - iyo yakakura kuremerwa kwehupamhi, iyo yakasimba yehunyanzvi level inodiwa, uye mutengo wemamita unozove wakakwira.
Nokudaro, nhamba dziri kunze kwevabereki hadzina chokuita nekushandiswa chaiko kwemushandisi-zvinopfuura kana zvishoma pane iyi kukosha hazvizokanganisa metering yemamita. Iko kune kunyanya maviri maficha akabatwa neiyo calibration ikozvino: mutengo wemamita (unoenderana nehupamhi hwekutakura) uye yekutanga ikozvino (yakaverengerwa necalibration ikozvino).