Ngokuqhelekileyo, umzimba womntu unokuva ixabiso langoku lokuvuselela malunga ne-1 mA.Xa umzimba womntu udlula i-5 ~ 20mA, izihlunu ziya kuncipha kwaye zixube, ukuze umntu angakwazi ukuhlukana nocingo.Imveliso yokutshitshiswa kombane ngoku kunye nexesha elivunyelwe ngamazwe amaninzi yi-30mA * S ukumelana nomzimba womntu Ngokuqhelekileyo i-1500 ohms ~ 300000 ohms, ixabiso eliqhelekileyo yi-1000 ohms ~ 5000 ohms, ixabiso elinconywayo li-1500 ohms.
Ixabiso lamandla ombane elikhuselekileyo linokufumaneka ukusuka kwindlela umzimba womntu osabela ngayo ngoku kunye nokuchasana nomzimba womntu: ixabiso lombane elikhuselekileyo kwilizwe lethu liyi-12 ~ 50V.
Ukumelana nombane, ukuvuza kwangoku kunye nokhuseleko lwamandla okucoca i-EMI:
Uxinzelelo kunye nokhuseleko
1. Ukuba i-Cx capacitor kwi-filter iphukile, ilingana nesiphaluka esifutshane segridi ye-AC, ubuncinane ibangela ukuba izixhobo ziyeke ukusebenza;ukuba i-Cy capacitor yaphukile,
Kulingana nokongeza i-voltage yegridi yamandla e-AC kwi-casing yezixhobo, ezisongela ngokuthe ngqo ukhuseleko lomntu kwaye zichaphazela zonke izixhobo ezine-casing yentsimbi njengendawo yokubhekisela.
Ukhuseleko lwesekethe okanye isixhobo, ludla ngokukhokelela ekutshisweni kweesekethe okanye izixhobo ezithile.
2. Eminye imigangatho yokhuseleko oluxhathisa kuxinzelelo lwamazwe ngamazwe yile ilandelayo:
EJamani VDE0565.2 Uvavanyo oluphezulu lweVoltage (AC) P, N ukuya ku-E 1.5kV/50Hz 1 min
ESwitzerland SEV1055 Uvavanyo lweVolthage ePhakamileyo (AC) P, N ukuya ku-E 2*Un+1.5kV/50Hz 1 min
US UL1283 Uvavanyo lweVolthage ePhakamileyo (AC) P, N ukuya ku-E 1.0kV/60Hz 1 min
EJamani VDE0565.2 Uvavanyo oluphezulu lweVoltage (DC) P ukuya ku-N 4.3* Un 1 min
ISwitzerland SEV1055 Uvavanyo oluPhezulu lweVoltage (DC) P ukuya ku-N 4.3* Un 1 min
US UL1283 High Voltage Test (DC) P ukuya N 1.414kV 1 umzuzu
bonisa:
(1) Isizathu sokusebenzisa amandla ombane we-DC kwi-PN yokumelana novavanyo lombane kukuba umthamo we-Cx mkhulu.Ukuba uvavanyo lwe-AC lusetyenzisiwe, umthamo wangoku ofunwa ngumvavanyi wokumelana nombane
Inkulu kakhulu, ibangela umthamo omkhulu kunye neendleko eziphezulu;le ngxaki ayikho xa i-DC isetyenziswa.Kodwa ukuguqula amandla ombane osebenzayo we-AC kwi-voltage efanayo ye-DC yokusebenza
Umzekelo, amandla ombane aphezulu e-AC yi-250V(AC)=250*2*1.414=707V(DC), ngoko ke ingcaciso yokhuseleko UL1283
1414V(DC)=707*2.
(2) Ukumelana neemeko zovavanyo lombane kwimanyuwali yomzi-mveliso wobuchwephesha owaziwa kwihlabathi jikelele:
Corcom Corporation (USA) P, N ukuya ku-E: 2250V(DC) ngomzuzu omnye P ukuya ku-N: 1450V(DC) ngomzuzu omnye
Schaffner (Switzerland) P, N ukuya ku-E: 2000V(DC) ngomzuzu omnye P ukuya ku-N: Ngaphandle kokuba
Abavelisi abachwephesha besihluzi sasekhaya babhekisa kwimithetho yokhuseleko yeVDE yaseJamani okanye imigaqo yokhuseleko ye-UL yaseMelika
Ukuvuza kwangoku kunye nokhuseleko
Imowudi yecapacitor yeCy yayo nayiphi na isekethe yokucoca eqhelekileyo inesiphelo esinye esipheliswe kwimeko yentsimbi.Ukusuka kwindawo yokujonga ulwahlulo lombane, i-casing yentsimbi yesihluzi inayo
I-1/2 ye-voltage elinganisiweyo, ngoko ke ukusuka kwindawo yokhuseleko lokujonga, ukuvuza kwangoku (ukuvuza kwangoku) ukusuka kwisihlunu ukuya emhlabeni ngeCy kufuneka kube kuncinci kunokwenzeka.
kuya kulubeka esichengeni ukhuseleko lobuqu.
Imimiselo yokhuseleko lokuvuza kwangoku kwamanye amazwe amashishini amakhulu ehlabathini imi ngolu hlobo lulandelayo:
Qaphela: 1. Ukuvuza kwangoku kuhambelana ngokuthe ngqo nombane wegridi kunye namaxesha egridi.Ukuvuza kwangoku kwesihluzo segridi ye-400Hz kuphindwe ka-8 kunegridi ye-50Hz (okt.
Izihluzi ezihlangabezana nemigaqo yokhuseleko kwiigridi zamandla okwenziwa ngamaxesha amaninzi zingangahambelani nemigaqo yokhuseleko kwiigridi zamandla amatyeli aphezulu)
2. Xa kutshekishwa ukuvuza kwangoku kwesihluzi, makusetyenziswe isekethe yokulinganisa engqinelana nemigangatho yamazwe ngamazwe (njengoko kubonisiwe kulo mfanekiso ungezantsi).Xa ukulinganisa, i-case yensimbi ayikwazi
Isekelwe, kufuneka inqunyanyiswe.
Umzobo webhlokhi yesihluzi esivuzayo sesekethe yovavanyo lwangoku:
Usetyenziso
1: Izixhobo zasekhaya - ukumelana novavanyo lombane lwefriji:
Vavanya amandla ombane okumelana phakathi kwenxalenye yonikezelo lwamandla kunye nomhlaba.Iimeko zovavanyo: AC1500V, 60s.Iziphumo zovavanyo: akukho kuphazamiseka kunye ne-flashover.Ukukhuselwa koKhuseleko: Umqhubi unxibe iiglavu zokukhusela, i-workbench ibekwe kunye neepads zokukhusela, kwaye isixhobo sisekelwe ngokufanelekileyo.Umgangatho womSebenzi: ukuqhuba uqeqesho lwangaphambili, unobuchule kwizixhobo zokusebenza, kwaye unokuchonga ngokusisiseko kunye nokujongana nokusilela kwesixhobo.
Izixhobo ozikhethayo:RK2670/71/72/74 series, inkqubo-elawulwa RK7100/RK9910/20 series.
Iinjongo zovavanyo
Yenza unikezelo lwamandla lwesixhobo lusekelwe ngokuthembekileyo, kwaye uvavanye iimpawu zokumelana nombane wemveliso.
Inkqubo yovavanyo
1.Qhagamshela i-voltage ephezulu yesixhobo kwi-terminal igalelo lamandla efrijini (i-LN ixhunyiwe kunye) kwinxalenye yamandla egridi.I-terminal yomhlaba (ukubuya) yesixhobo ixhunyiwe kwi-terminal yomhlaba yefriji.
2. I-alam esetwe kwangaphambili isetwa ngokwemigangatho yomsebenzisi.Beka ixesha kwi-60s.
3. Qala isixhobo, lungisa i-voltage ukubonisa i-1.5Kv, kwaye ufunde ixabiso langoku.Ngethuba lenkqubo yokuvavanya, isixhobo asinayo i-alamu yokuvuza ngokugqithiseleyo, ebonisa ukuba i-voltage yokumelana idlulile.Ukuba i-alam iyenzeka, imveliso ithathwa njengengafanelekanga.
Ukulumkela
Emva kokuba uvavanyo lugqityiwe, amandla esixhobo kufuneka acinywe phambi kokuba imveliso kunye nomgca wokuvavanya ungathathwa ukuze ugweme ukungasebenzi kunye neengozi zokhuseleko.
2.Ukuvuza kovavanyo lwangoku lwezixhobo zekhaya-umatshini wokuhlamba
Iimeko zokuvavanya: Ngokwesiseko se-1.06 amaxesha ombane osebenzayo, vavanya ixabiso langoku lokuvuza phakathi kokunikezelwa kwamandla kunye nomhlaba okhuselayo womnatha wokuvavanya.Injongo yovavanyo: Ingaba iindawo zentsimbi eziveziweyo zecasing zinemisinga engakhuselekanga xa isixhobo sombane siphantsi kovavanyo sisebenza.
Iziphumo zovavanyo: funda ixabiso langoku lokuvuza, nokuba lidlula ixabiso elikhuselekileyo, isixhobo siya kubetha ngesandi kunye nokukhanya.Inqaku lokhuseleko: Ngexesha lovavanyo, isixhobo kunye ne-DUT zinokuhlawuliswa, kwaye akuvumelekanga ngokungqongqo ukuzibamba ngezandla ukuthintela ukothuka kombane kunye neengozi zokhuseleko.
Iimodeli ozikhethayo:RK2675 series, I-RK9950uthotho, ngokwamandla emveliso evavanyiweyo.Isigaba esisodwa sinokuzikhethela kwi-500VA-5000VA, kwaye isigaba sesithathuI-RK2675WT, enemisebenzi emibini yesigaba sesithathu kunye nesigaba esinye.
Amanyathelo ovavanyo:
I-1: Isixhobo sisebenza, kwaye unikezelo lwamandla lusekelwe ngokuthembekileyo.
I-2: Vula ukutshintshwa kwamandla kwesixhobo, ifestile yokubonisa isixhobo iya kukhanya.Cinezela iqhosha lokuvavanya / ukusetwa kwangaphambili, khetha uluhlu lwangoku lwe-2mA / 20mA, lungisa i-PRE-ADJ potentiometer, kwaye usethe i-alamu yangoku.Emva koko veza iqhosha lokuseta kwangaphambili/lokuvavanya ukuvavanya imeko.
3: Qhagamshela imveliso yombane phantsi kovavanyo kunye nesixhobo, qala isixhobo, ukukhanya kulayitiwe, lungisa iqhosha lohlengahlengiso lombane ukwenza isalathiso sombane sihlangabezane neemfuno zovavanyo, kwaye emva kokufunda ixabiso langoku lokuvuza, setha kwakhona isixhobo kwaye uhlengahlengise. amandla ombane ukuya kowona mncinci.
Qaphela: Ngexesha lovavanyo, musa ukuphatha iqokobhe lesixhobo kunye ne-DUT.
Ezintathu: uvavanyo lokuxhathisa umhlaba
Iimeko zokuvavanya: i-25A yangoku, ukuchasana ngaphantsi kwe-100 milliohms.Vavanya i-on-resistance phakathi komhlaba wegalelo lamandla kunye neendawo zentsimbi eziveziweyo zecala.
Izixhobo ozikhethayo:RK2678XM uluhlu (ngoku 30/32/70 ampere ngokuzikhethela),RK7305 umatshini olawulwa yinkqubo,I-RK9930 series (yangoku 30/40/60 ampere ozikhethela), inkqubo-elawulwa uthotho PLC umqondiso output, RS232, RS485 imisebenzi yonxibelelwano.
amanyathelo ovavanyo
I-1: Xhuma intambo yamandla yesixhobo ukuqinisekisa ukuba isixhobo sisekelwe ngokuthembekileyo.
I-2: Vula amandla kwaye usete kwangaphambili umda ophezulu wokumelana ne-alamu.
I-3: Xhuma ucingo lokuvavanya kwi-terminal yepaneli yesixhobo ngokombala kunye nobukhulu (ucingo olunzima luxhunywe kwisithuba esikhulu, kwaye ucingo oluncinci luxhunyiwe kwisithuba esincinci).
4: Iikliphu zovavanyo ziqhagamshelwe ngokulandelelana kumhlaba wesixhobo esiphantsi kovavanyo (ucingo olusezantsi lwesiphelo segalelo lamandla) kunye nomhlaba okhuselayo we-casing (inxalenye yentsimbi engenanto) ukuqinisekisa ukuba indawo yovavanyo ivuliwe, kungenjalo uvavanyo lwangoku alunakuhlengahlengiswa.
I-5: Qala isixhobo (cofa u-QALA ukuqala), ukukhanya kovavanyo lwesixhobo kuvuliwe, lungisa okwangoku (uchungechunge olulawulwa yiprogram kufuneka lubekwe kuqala) kwixabiso elifunekayo lovavanyo, kwaye ufunde ixabiso lokumelana.
I-6: Ukuba uvavanyo aluphumeleli, isixhobo siya kuba ne-alamu ye-buzzer (isandi kunye nokukhanya), kwaye uchungechunge olulawulwa yinkqubo lweziphumo zovavanyo luya kuba ne-PASS, izibane ze-FAIL kunye nesandi kunye ne-alamu yokukhanya.
Ixesha lokuposa: Oct-19-2022
