Ikizamini cyo kurwanya ibihugu birakwiriye gupima agaciro ko kurwanya ibikoresho bitandukanye byo kwikuramo no kurwanya intangarugero Ibyangiritse.
Ibibazo bisanzwe byo kurwanya testers niyi ikurikira:
1. Iyo upima umutwaro wo kurwanya umutwaro, ni irihe sano riri hagati yumuzunguruko mugufi yakipe yumuzunguruko ugamije ikizamini cyo kurwanya abasuku hamwe namakuru yapimwe, kandi kuki?
Ingano yibisohoka hagati yumuzunguruko wikigereranyo cyo kurwanya ibiganiro birashobora kwerekana ubunini bwiterambere ryimbere ryisoko-voltage yimbere imbere ya megger.
Ibizamini byinshi byo kwishingira intego, nkinsinga ndende, moteri zifite umuyaga mwinshi, nabahindura. Kubwibyo, igihe intego yapimwe ifite ubushobozi, mugitangira cyikizamini, isoko yikigereranyo murwego rwo kurwanya ingufu zigomba kwishyuza imbere, kandi buhoro buhoro igomba kwishyuza ingufu mu gihugu, kandi buhoro buhoro kwishyuza voltage yinyongera-voltage yinyongera ya Insulation yo kurwanya tester. . Niba ubushobozi bwo kwitabwaho intego yapimwe ari binini, cyangwa kurwanya imbere isoko ya voltage ndende nini, inzira yo kwishyuza izafata igihe kirekire.
Uburebure bwacyo burashobora kugenwa nibicuruzwa bya R'Imbere na C (Igice: Icya kabiri), ni ukuvuga t = r inst * c umutwaro.
Kubwibyo, mugihe cyo kwipimisha, ni ngombwa kwishyuza umutwaro wakazi kuri voltage yikizamini, kandi umuvuduko wihuta dv / dt uhwanye na gahunda yo kwishyuza C. Nibyo, DV / DV / DT = I / c.
Kubwibyo, ibitero bito byimbere nibinini bishimishije birimo kwishyuza, ibisubizo byibizamini byihuta bizahagarara.
2. Niyihe mikorere ya "G" kuruhande rwibi? Mubikoresho--voltage hamwe nibidukikije byo kurwanya ibizamini byinshi, kuki bisabwa guhuza "g" hanze?
Iherezo rya "G" hejuru yubuso nimpagari zingabo. Imikorere ya termil yingabo ni ugukuraho ingaruka zubushuhe numwanda mubidukikije kubisubizo byo gupima. Inyuma yo hanze "G" irenze aho yagabanijwe ibicuruzwa byageragejwe, kugirango ubungubu butanyuze mukipe yikizamini cyo hanze, kandi akuraho ikosa ryatewe nuburinganire. GR terminal ikoreshwa mugihe ugerageza kurwanya cyane.
Muri rusange, GR terminal irashobora gusuzumwa hejuru ya 10G. Ariko, uru ruzi rwo kurwanya ntabwo ruzi neza. Iyo ifite isuku kandi yumye kandi ingano yikizamini ni gito, irashobora guhagarara udapima 500G kuri g iherezo. Mubidukikije bito kandi byanduye, agaciro kirwanya hasi bisaba kandi g iherezo. By'umwihariko, niba ubonye ko ibisubizo bigoye gutuza mugihe upima kurwanya hejuru, urashobora gusuzuma ukoresheje G Terminal. Menya kandi ko umutware wa terminal g udahujwe nigice cyingabo, ariko kuri susulator hagati ya L cyangwa e cyangwa kuri insinga nyinshi, ntabwo yerekeza kurundi nsinga.
3. Kuki bidasabwa gusa gupima agaciro ko kurwanya agaciro mugihe upima ubushishozi, ariko nanone gupima urutonde rwinshi hamwe nigipimo cyihuse. Ni ubuhe buryo?
Pi ni indangagaciro yerekana, bivuga kugereranya hagati yiminota 10 no kurwanya ibiganiro byiminota 1 mugihe cyikizamini cyo kugenzura;
Dar nigipimo cyimirire ikurura, bivuga kugereranya hagati yo kurwanya umunota 1 no kurwanya abagore 15 mugihe cyikizamini cy'amashuri;
Mu kizamini cyigisha, abasuhuza agaciro mugihe runaka ntigishobora kwerekana neza imikorere yubukwe bwicyitegererezo cyikizamini. Ibi biterwa n'impamvu ebyiri zikurikira. Ku ruhande rumwe, kurwanya ibiganiro byimikorere imwe yibikoresho byubushisu ni bito mugihe amajwi ari manini. , Kurwanya ibihugu bigaragara mugihe ingano ari nto. Kurundi ruhande, ibikoresho byo kwigana bifite inzira yo gushiramo igipimo cyo kwinjiza hamwe nuburyo bwo gutoranya bwamafaranga nyuma ya voltage ndende ikoreshwa. Kubwibyo, sisitemu yubumenyi isaba gupima igipimo cyo kwinjiza - igipimo cya R60 na R15, hamwe na R1min na R1min, insinga, motos nibindi bihe nibindi bihe byinshi, kandi bikoresha ibi Amakuru kugirango umenye intera ibyiza cyangwa bibi.
4. Kuki ibikoresho bya elegitoroniki bishobora guteza testers bitanga voltage ndende ya DC hejuru mugihe ikoreshwa na bateri nyinshi? Ibi bishingiye ku ihame ryo guhinduka DC. Amashanyarazi yo hepfo ya voltage yazamuwe hejuru yo gusohoka hejuru dc voltage binyuze mu gutunganya imitcut. Voltage ndende yakozwe ni hejuru ariko imbaraga zisohoka ni nto (ingufu nke na ntoya).
Icyitonderwa: Nubwo imbaraga ari nto cyane, ntabwo zisabwa kugiti cyawe gukora ikipe yikizamini, hazakomeza kubaho.
Igihe cyagenwe: Feb-06-2021
