1, ka'idar gwaji:
a) yin tsayayya da gwajin wutar lantarki:
Tsarin aiki na yau da kullun shine: Kwatanta Lantarki na yanzu da kayan aikin da aka gwada a babban abin kunnawa na fitarwa ta hanyar da aka sa ido na yanzu. Idan an gano hanyar da aka gano ƙasa da ƙimar saiti, kayan aikin ya wuce gwajin. Lokacin da aka gano Listangaren yanzu ya fi na yanke hukunci a halin yanzu, ana aika wutar lantarki da ta gani, don sanin ƙarfin lantarki da tsayayya da ikon da aka gwada.
Don ka'idojin gwajin yanki na farko,
Voltage yana tsayayya da Tester an haɗa shi da AC (kai tsaye) na lantarki na yanzu, mai kula da lokaci, binsi na ganowa, da'irar bincike, kewaye da'irar ƙarawa da da'irar ƙararrawa. Ka'idar aiki ta asali shine: rabo daga halin da aka samu a halin yanzu wanda aka gwada shi a gwajin babban kayan lantarki ta hanyar yanke hukunci a halin yanzu. Idan an gano Lament ɗin yanzu ƙasa da ƙimar saiti, kayan aikin ya shuɗe ya fi nazarin lokaci na yanzu, an aika da tsarin ilimin na zamani da kuma gani da kuma ƙararrawa da gani don tantance wutar lantarki Yin tsayayya da ikon da aka gwada.
b) rufi mai ban sha'awa:
Mun san cewa ƙarfin lantarki na gwajin rufewa gabaɗaya 500V ko 1000v, wanda yayi daidai da gwada gwajin dutsen. A ƙarƙashin wannan ƙarfin lantarki, kayan aikin yana auna ƙimar yanayi, sannan kuma ya yanke shawara na yanzu ta hanyar ƙididdigar da'irar ciki. A ƙarshe, yana wucewa doka ta: r = u / i, inda u shine 500V ko 1000v an gwada shi, kuma ni ne lalacewa a halin yanzu a wannan wutar lantarki. Dangane da ke tsayayya da kwarewar gwajin wutar lantarki, zamu iya fahimtar cewa yanzu ƙarami ne, gabaɗaya kasa da 1 μ a.
Ana iya ganin hakan daga sama cewa ƙa'idar rufin rufewa daidai take da na haifar da gwajin wutar lantarki, amma kawai magana ce ta OHM. Ana amfani da Lamarin Yanzu don bayyana rufin aikin abin da ke ƙarƙashin gwaji, yayin da takin rufewa shi ne juriya.
2, manufar wutar lantarki da tsayayya da gwaji:
Voltage da tsayayya da gwaji ne wanda ba lalacewa ba, wanda ake amfani dashi don gano ko ikon rufin samfuran sun cancanci a ƙarƙashin ƙarfin lantarki. Yana amfani da babban ƙarfin ƙarfin lantarki zuwa kayan aikin da aka gwada don wani lokaci don tabbatar da cewa rufin kayan aikin yana da ƙarfi sosai. Wani dalilin wani dalilin wannan gwajin shi ne cewa yana iya gano wasu lahani na kayan aikin, kamar su rashin isasshen ra'ayi a cikin masana'antu.
3, wutar lantarki ta tsayayya da gwajin wutar lantarki:
Akwai janar na ikon yin gwajin lantarki = wutar lantarki × 2 + 1000v.
For example: if the power supply voltage of the test product is 220V, the test voltage = 220V × 2+1000V=1480V 。
Gabaɗaya, da ke tsayayya lokacin gwajin dutsen. Saboda yawan gwaje-gwajen juriya na lantarki akan layin samarwa, yawanci ana rage lokacin gwajin zuwa kawai secondsan mintuna kaɗan. Akwai ka'idodi mai amfani. Lokacin da aka rage lokacin gwaji zuwa seconds 1-2, dole ne a ƙara gwajin gwajin a cikin 10-20%, don tabbatar da amincin rufi a cikin gwaji na ɗan lokaci.
4, marian maraari na yanzu
Za a iya ƙaddara saitin ƙararrawa na yanzu bisa ga samfura daban-daban. Hanya mafi kyau ita ce yin yaduwar yanzu don samfuran samfurori a gaba, samun matsakaiciyar darajar, sannan kuma tantance darajar da ɗan sama da wannan matsakaicin darajar kamar yadda aka tsara. Saboda yaduwar halin yanzu na kayan aikin da babu makawa, ya zama dole tabbatar da cewa koyarwar ta a yanzu ta haifar da haifar da haifar da samfurin da ba a bayyana ba. A wasu halaye, har ma yana yiwuwa don sanin ko samfurin yana da lamba tare da ƙarshen fitarwa na wutar lantarki mai ɗaukar hoto na yanzu.
5, zaɓi na gwajin AC da DC
Gwada ƙarfin lantarki, yawancin ƙa'idodin aminci suna ba da izinin amfani da AC ko DC Voltage wajen tsayayya da gwaje-gwajen Voltage. Idan ana amfani da wutar gwajin AC, lokacin da aka sami wutar lantarki a lokacin da za'a gwada shi zai ɗauki matsakaicin matsin lamba lokacin da darajar ƙwarewar ta kasance tabbatacce ko mara kyau. Sabili da haka, idan an yanke shawarar zaɓi don amfani da gwajin DC, ya zama dole tabbatar da cewa gwajin gwajin DC ya zama daidai da ƙimar ƙwayar cuta na AC na voltage. Misali: 1500v voltage, don DC voltage don samar da adadin da wutar lantarki dole ne ya zama 1500 × 1.41V DC voltage.
Ofaya daga cikin fa'idodin amfani da wutar gwajin DC GASKIYA shine cewa a cikin yanayin DC, na yanzu yana gudana ta hanyar na'urar ta wutar lantarki na yanzu tana gudana ta hanyar samfurin. Wani fa'idar amfani da gwajin DC shine cewa ana iya amfani da ƙarfin lantarki a hankali. Lokacin da ƙarfin ƙarfin lantarki yana ƙaruwa, mai aiki na iya gano gudana na yanzu ta samfurin kafin ɓarna ya faru. Yana da mahimmanci a lura cewa lokacin amfani da DC voltage mai tsayayya da Tester, samfurin dole ne a gama bayan gwajin saboda cajin karfin gwiwa a cikin da'irar. A zahiri, komai ana gwada wutar lantarki da halayen samfurin, yana da kyau ga fitarwa kafin aiki samfurin.
Rashin amfani da DC voltage da tsayayya da gwaji shine kawai zai iya yin amfani da damuwa na gwaji a kan hanya guda, kuma mafi yawan kayayyakin lantarki suna aiki a ƙarƙashin AC Power samar da wadata AC. Bugu da kari, saboda wutar gwajin DC tana da wahala farashi, farashin gwajin DC ya fi na gwajin AC.
Amfanin AC voltage da tsayayya da gwaji shine cewa zai iya gano dukkanin ƙarfin lantarki, wanda yake kusa da yanayin amfani. Bugu da kari, saboda AC voltage ba zai cajin karfin ba, a mafi yawan lokuta, ana iya samun ƙimar da ke tsaye ta hanyar karewa da dacewa ba tare da karatun digiri ba. Haka kuma, bayan an kammala gwajin AC, babu samfurin samfurin.
Rashin ƙarfin oc da tsayayya da gwaji shine idan akwai babban shirin a cikin layin gwaji, a wasu halaye, gwajin AC zai zama ashirin. Mafi yawan ka'idodin aminci suna ba masu amfani damar ko dai ba su haɗa y capacitors kafin gwaji, ko a maimakon amfani da gwaje-gwajen DC ba. Lokacin da DC voltage da tsayayya da gwaji ne a cikin Y Capacitance, ba zai zama ba da mamaki ba saboda damar ba zai ba da izinin kowane yanzu ba don wucewa a wannan lokacin.
Lokaci: Mayu-10-2021
