Ikizamini cyo Kurwanya Isi

Ijambo "kurwanya ubutaka" ni ijambo ridasobanuwe neza.Mubipimo bimwe (nkibipimo byumutekano kubikoresho byo murugo), bivuga kurwanya guhangana nubutaka imbere yibikoresho, mugihe mubipimo bimwe na bimwe (nko mubishushanyo mbonera byubutaka), bivuga kurwanya ibikoresho byose byubutaka.Ibyo tuvuga bivuga kurwanya ibitaka imbere mubikoresho, ni ukuvuga kurwanya ibitaka (nanone bita resistance grounding) mubipimo rusange byumutekano wibicuruzwa, ibyo bikaba bigaragaza ibice bitwara ibikoresho byerekanwe hamwe nubutaka rusange bwibikoresho.Kurwanya hagati ya terefone.Igipimo rusange giteganya ko iyi myigaragambyo itagomba kurenza 0.1.

Kurwanya ubutaka bivuze ko mugihe insulasiyo yibikoresho byamashanyarazi binaniwe, ibyuma byoroshye kugerwaho byoroshye nkurugomero rwamashanyarazi birashobora kwishyurwa, kandi birakenewe kurinda umutekano wizewe kumutekano wumukoresha wibikoresho byamashanyarazi.Kurwanya ubutaka ni ikimenyetso cyingenzi cyo gupima ubwizerwe bwo kurinda amashanyarazi.

Kurwanya ubutaka birashobora gupimwa hamwe nugupima kwangirika.Kubera ko guhangana nubutaka ari bito cyane, mubisanzwe muri miliohms mirongo, birakenewe ko hapimwa ibipimo bine kugirango ukureho guhuza no kubona ibisubizo nyabyo byo gupima.Ikizamini cyo kurwanya ubutaka kigizwe no gutanga amashanyarazi, umuzenguruko wikizamini, icyerekezo hamwe nizunguruka.Amashanyarazi yikizamini atanga amashanyarazi ya AC ya 25A (cyangwa 10A), kandi umuzenguruko wikizamini wongerera imbaraga kandi uhindura ibimenyetso bya voltage byabonetse kubikoresho biri mu kizamini, byerekanwa nicyerekezo.Niba ibipimo byapimwe byapimye birenze agaciro ko gutabaza (0.1 cyangwa 0.2), igikoresho kizumvikana urumuri.

Porogaramu igenzurwa nubutaka bwo kurwanya ibizamini byo kwirinda

Iyo porogaramu igenzurwa nubutaka bwo gupima ibipimo bipima guhangana nubutaka, clip yikizamini igomba gufatirwa kumurongo uhuza hejuru yikigice cyagerwaho.Igihe cyikizamini ntabwo cyoroshye kuba kirekire, kugirango udatwika amashanyarazi.

Kugirango bapime neza guhangana nubutaka, insinga ebyiri zoroheje (insinga za voltage sample) kuri clip yikizamini zigomba gukurwa kuri voltage ya terefone igikoresho, igasimbuzwa izindi nsinga ebyiri, hanyuma igahuzwa nu murongo uhuza ikintu cyapimwe nubu. clip yikizamini kugirango ikureho burundu ingaruka ziterwa no guhura kwizamini.

Byongeye kandi, ibizamini byo guhangana nubutaka birashobora kandi gupima guhangana nuguhuza kwamashanyarazi atandukanye (contact) hiyongereyeho gupima guhangana nubutaka.

Merrick Instruments 'Programmable Earth Resistance Tester RK9930Ikigereranyo ntarengwa ni 30A ；RK9930AIkigereranyo ntarengwa ni 40A ；RK9930BIbisohoka ntarengwa ni 60A ； Kubireba ikizamini cyo guhangana nubutaka, munsi yinzira zitandukanye, imipaka yo hejuru yikizamini ibarwa kuburyo bukurikira ：

Iyo ibara ryabazwe R rirenze agaciro ntarengwa ko kwipimisha, fata agaciro ntarengwa.

Ni izihe nyungu zo kugerageza gahunda yo kurwanya isi igerageza?

Ikizamini cya Programmable Earth Resistance Tester Generator ya sine igenzurwa cyane na CPU kugirango itange sine isanzwe, kandi kugoreka kwayo kwari munsi ya 0.5%.Ibisanzwe bya sine yoherejwe kuri power amplifier circuit kugirango yongere ingufu, hanyuma ikigezweho gisohoka na transformateur isohoka.Ibisohoka byanyuze muri transformateur yubu.Guhitamo, gukosora, kuyungurura, na A / D ihinduka byoherejwe kuri CPU kugirango yerekanwe.Guhinduranya amashanyarazi, gukosora, kuyungurura, na A / D ihinduka byoherejwe kuri CPU, kandi agaciro kapimwe kapimwa kubarwa na CPU.

Porogaramu Igerageza Kurwanya IsiUgereranije na gakondo ya voltage igenzura ubwoko bwa testing resistance, ifite ibyiza bikurikira:

1. Ibisohoka bihoraho;shiraho ikigezweho kuri 25A, murwego rwo kugerageza uruhererekane rwibizamini, mugihe cyikizamini, ibisohoka byikizamini ni 25A;ibisohoka bigezweho ntabwo bihinduka hamwe numutwaro.

2. Ibisohoka byama progaramu igenzurwa nubutaka bwo kurwanya ibizamini ntabwo bigira ingaruka kumashanyarazi.Mubisanzwe bya voltage igenzura ubwoko bwikigereranyo cyo kurwanya ibizamini, niba amashanyarazi ahindagurika, umusaruro wacyo uzahinduka hamwe nayo;iyi mikorere ya progaramu igenzurwa nubutaka bwo kurwanya ibizamini ntibishobora kugerwaho nubwoko bwa voltage igenzura ubwoko bwikigereranyo.

3.Ikizamini cya RK7305ifite imikorere ya kalibrasi ya software;niba ibisohoka bigezweho, herekana ibigezweho hamwe nigeragezwa ryikizamini kirenze intera yatanzwe mu gitabo, noneho uyikoresha arashobora guhinduranya ikizamini akurikije intambwe yimikorere yumukoresha.RK9930Irashobora guhita ihindagurika kandi ntigire ingaruka kubidukikije

4.Ibisohoka ubu inshuro zirahinduka; RK9930 、RK9930A、RK9930BIbisohoka bigezweho byo gupima ibizamini bifite imirongo ibiri yo guhitamo kuva: 50Hz / 60Hz, ishobora guhura nibikenewe mubice bitandukanye.

Kugerageza imikorere yumutekano wibikoresho byo murugo

1. Ikizamini cyo kurwanya insulation

Kurwanya insuline yibikoresho byamashanyarazi murugo nikimwe mubimenyetso byingenzi byo gusuzuma ubwiza bwabyo.Kurwanya insulasiyo bivuga kurwanya hagati yikintu kizima cyibikoresho byo murugo nigice cyerekanwe kitari kizima.Hamwe niterambere ryihuse ryinganda zikoreshwa murugo no kwiyongera cyane kwamamara ryibicuruzwa nkibi, murwego rwo kurinda umutekano bwite wabakoresha, ibisabwa kugirango ubwiza bwibikoresho byibikoresho byo murugo buragenda burushaho gukomera.

Uburyo bwo gukoresha ibikoresho byo gukumira

1. Shira mumashanyarazi, fungura amashanyarazi, urumuri rwerekana amashanyarazi ruriho;

2. Hitamo voltage ikora hanyuma ukande buto ya voltage isabwa;

3. Hitamo agaciro ko gutabaza;

4. Hitamo igihe cyo gukora ikizamini (kumurongo wa sisitemu yerekana, ubwoko bwerekana ntabwo bufite iyi mikorere);

5. Amashuri atagira ingano ();(Urukurikirane rwa RK2681 rushobora gushigikira)

6. Kuburyo bwuzuye bwa kalibrasi, huza kalibrasi irwanya iherezo ryapimwe, hanyuma uhindure igipimo cyuzuye cya kalibrasi potentiometero kugirango icyerekezo cyerekanwe ku gipimo cyuzuye.

7. Huza ikintu cyapimwe kumpera yo gupima hanyuma usome irwanya izirinda.

Kwipimisha kwipimisha kwipimisha

1. Bikwiye gushyuha byuzuye mbere yo gupimwa kugirango wirukane ubuhehere buri muri mashini, cyane cyane mubihe by'ubushyuhe mugihe cyimvura yo mumajyepfo.

2. Mugihe cyo gupima ubukana bwibikoresho byamashanyarazi bikora, ibikoresho bigomba kubanza gukurwa mubikorwa bikora, kandi gupima bigomba gukorwa vuba mbere yuko ibikoresho bishyushya bigabanuka kubushyuhe bwicyumba kugirango hirindwe agaciro kapimwe kutagira ingaruka. Ubucucike hejuru yubuso.

3. Igikoresho cyo gupima ibikoresho bya elegitoronike kigomba kuba muburyo budakora, kandi ibikoresho byahinduwe bigomba kuba muri leta kugirango bipime ubukana bwabyo, kandi imirongo cyangwa ibice bitajyanye nigice cyapimwe bigomba guhagarikwa mugihe cyo gupima .

4. Kugirango wirinde agaciro ko gupimwa kwangizwa nubushake buke bwikigereranyo cyo guhuza ibipimo, insinga zinsinga zihuza zigomba kugenzurwa kenshi kandi ntizigoreke.