Ngokuvamile, umzimba womuntu ungakwazi ukuzwa inani lamanje lokukhuthazwa limayelana ne-1 mA.Lapho umzimba womuntu udlula i-5 ~ 20mA, imisipha izofinyela futhi inyakaze, ukuze umuntu angakwazi ukuhlukaniswa nocingo.Umkhiqizo wokushaqeka kukagesi wamanje nesikhathi esivunyelwe amazwe amaningi yi-30mA*S ukumelana komzimba womuntu Imvamisa i-1500 ohms ~ 300000 ohms, inani elijwayelekile liyi-1000 ohms ~ 5000 ohms, inani elinconyiwe lingu-1500 ohms
Inani lamandla kagesi aphephile lingatholakala ekuphenduleni komzimba womuntu ukuya kumanje kanye nokumelana nomzimba womuntu: inani eliphephile lamandla kagesi ezweni lethu ngokuvamile liyi-12 ~ 50V.
Ukumelana ne-voltage, ukuvuza kwamanje nokuphepha kwesihlungi se-EMI samandla:
Ingcindezi nokuphepha
1. Uma i-Cx capacitor kusihlungi iphukile, ilingana nesekhethi emfushane yegridi ye-AC, okungenani ibangele ukuthi okokusebenza kuyeke ukusebenza;uma i-Cy capacitor iphukile,
Kulingana nokwengeza i-voltage yegridi yamandla we-AC ku-casing yamathuluzi, okusongela ngokuqondile ukuphepha komuntu siqu futhi kuthinta zonke izinto zokusebenza ezine-casing yensimbi njengendawo eyinkomba.
Ukuphepha kwesekethe noma okokusebenza, kuvame ukuholela ekushisweni kwamasekethe athile noma amathuluzi.
2. Ezinye izindinganiso zamazwe ngamazwe zokuvikela ukumelana nokucindezela zimi kanje:
I-Germany VDE0565.2 High Voltage Test (AC) P, N ukuya ku-E 1.5kV/50Hz 1 iminithi
I-Switzerland SEV1055 High Voltage Test (AC) P, N ukuya ku-E 2*Un+1.5kV/50Hz 1 iminithi
I-US UL1283 High Voltage Test (AC) P, N ukuya ku-E 1.0kV/60Hz 1 iminithi
I-Germany VDE0565.2 High Voltage Test (DC) P ukuya ku-N 4.3*Un 1 iminithi
I-Switzerland SEV1055 High Voltage Test (DC) P ukuya ku-N 4.3*Un 1 iminithi
I-US UL1283 High Voltage Test (DC) P ukuya ku-N 1.414kV 1 iminithi
bonisa:
(1) Isizathu sokusebenzisa i-DC voltage ku-PN ukumelana nokuhlolwa kwe-voltage ukuthi umthamo we-Cx mkhulu.Uma kusetshenziswa ukuhlolwa kwe-AC, umthamo wamanje odingwa isihloli se-voltage esingamelana nayo
Inkulu kakhulu, ibangela umthamo omkhulu kanye nezindleko eziphakeme;le nkinga ayikho lapho kusetshenziswa i-DC.Kodwa ukuguqula i-voltage esebenzayo ye-AC ibe i-voltage esebenzayo ye-DC efanayo
Isibonelo, i-voltage ephezulu yokusebenza kwe-AC ngu-250V(AC)=250*2*1.414=707V(DC), ngakho ukucaciswa kokuphepha kwe-UL1283
1414V(DC)=707*2.
(2) Ukumelana nezimo zokuhlolwa kwamandla kagesi kumanuwali yefekthri yochwepheshe yokuhlunga eyaziwa emhlabeni wonke:
I-Corcom Corporation (USA) P, N kuya ku-E: 2250V(DC) umzuzu owodwa P ukuya ku-N: 1450V(DC) umzuzu owodwa
Schaffner (Switzerland) P, N kuya ku-E: 2000V(DC) umzuzu owodwa P ukuya ku-N: Ngaphandle kokuthi
Abakhiqizi abachwepheshile besihlungi sasekhaya ngokuvamile babhekisela kumithetho yezokuphepha ye-VDE yaseJalimane noma imithetho yokuphepha ye-American UL
Ukuvuza kwamanje nokuphepha
I-Capacitor yemodi evamile yanoma iyiphi isekethe yesihlungi esijwayelekile inomkhawulo owodwa onqanyulwe kukesi lensimbi.Ngokombono wokuhlukaniswa kwe-voltage, i-casing yensimbi yesihlungi ine
I-1/2 ye-voltage elinganiselwe, ngakho-ke ngokombono wokuphepha, ukuvuza kwamanje (ukuvuza kwamanje) kusukela kusihlungi kuya phansi nge-Cy kufanele kube kuncane ngangokunokwenzeka.
izofaka ukuphepha komuntu siqu engozini.
Imithethonqubo yokuphepha yokuvuza kwamanje kwamanye amazwe amakhulu ezimboni emhlabeni imi kanje:
Qaphela: 1. Amandla avuzayo alingana ngokuqondile ne-voltage yegridi kanye nefrikhwensi yegridi.Ukuvuza kwamanje kwesihlungi segridi engu-400Hz izikhathi ezingu-8 kunegridi engu-50Hz (okungukuthi
Izihlungi ezihlangabezana nemithetho yokuphepha kumagridi kagesi wemvamisa yamandla zingase zingahlangabezani nemithetho yokuphepha kumagridi kagesi amafrikhwensi aphezulu)
2. Lapho kuhlolwa ukuvuza kwamanje kwesihlungi, isifunda sokulinganisa esivumelana nezindinganiso zamazwe ngamazwe kufanele sisetshenziswe (njengoba kukhonjisiwe emfanekisweni ongezansi).Lapho ukala, ikesi lensimbi alikwazi
Igxiliwe, kufanele imiswe.
Vimba umdwebo womjikelezo wokuhlola ovuzayo wokuvuza kwamanje:
Izinhlelo zokusebenza
1: Izinto zasendlini - ukumelana nokuhlolwa kwe-voltage yamafriji:
Hlola i-voltage yokumelana phakathi kwengxenye yokuphakelwa kwamandla kanye nomhlabathi.Izimo zokuhlola: AC1500V, 60s.Imiphumela yokuhlolwa: akukho ukuhlukana kanye ne-flashover.Ukuvikela ukuphepha: Umsebenzisi ugqoka amagilavu avikelayo, indawo yokusebenza ibekwe ngamaphedi avikelayo, futhi ithuluzi libekwe phansi ngendlela efanele.Ikhwalithi yomsebenzisi: ukwenza ukuqeqeshwa kwangaphambi komsebenzi, nekhono kumathuluzi okusebenza, futhi angakwazi ukuhlonza nokubhekana nokuhluleka kwamathuluzi.
Izinsimbi ozikhethela zona:RK2670/71/72/74 uchungechunge, uchungechunge olulawulwa ngohlelo lwe-RK7100/RK9910/20.
Izinjongo zokuhlola
Yenza ukunikezwa kwamandla kwethuluzi kusekelwe ngokuthembekile, futhi uhlole izici zokumelana ne-voltage yomkhiqizo.
Inqubo yokuhlola
1.Xhuma amandla kagesi aphezulu wethuluzi kutheminali yokufaka amandla yesiqandisi (i-LN ixhunywe ndawonye) engxenyeni yamandla egridi.Itheminali yaphansi (ukubuya) yensimbi ixhunywe endaweni yokugcina phansi yesiqandisi.
2. I-alamu esethiwe yamanje isethwe ngokwezinga lomsebenzisi.Setha isikhathi sibe ngama-60s.
3. Qala ithuluzi, lungisa i-voltage ukuze ubonise u-1.5Kv, futhi ufunde inani lamanje.Phakathi nenqubo yokuhlola, ithuluzi alinayo i-alamu yokuvuza ngokweqile, ebonisa ukuthi i-voltage ye-standard idlulile.Uma kuvela i-alamu, umkhiqizo uthathwa njengongafaneleki.
Izinyathelo zokuzivikela
Ngemuva kokuthi ukuhlolwa sekuqediwe, amandla ensimbi kufanele avaliwe ngaphambi komkhiqizo futhi umugqa wokuhlola ungathathwa ukugwema ukungasebenzi kahle nezingozi zokuphepha.
2.Ukuvuza kokuhlolwa kwamanje komshini wokuwasha izinto zasendlini
Izimo zokuhlola: Ngesisekelo sezikhathi ezingu-1.06 ze-voltage yokusebenza, hlola inani lamanje lokuvuza phakathi kokunikezwa kwamandla kanye nomhlabathi ovikelayo wenethiwekhi yokuhlola.Inhloso yokuhlola: Ukuthi izingxenye zensimbi eziveziwe ze-casing zinamaza angaphephile yini lapho into esebenza ngogesi ehlolwayo isebenza.
Imiphumela yokuhlolwa: funda inani lamanje lokuvuza, noma lidlula inani eliphephile, ithuluzi lizohlaba umkhosi ngomsindo nokukhanya.Inothi Lokuphepha: Ngesikhathi sokuhlolwa, ithuluzi ne-DUT kungase kushajwe, futhi kwenqatshelwe ngokuphelele ukuthinta ngezandla ukuvikela ukushaqeka kukagesi kanye nezingozi zokuphepha.
Amamodeli ongawakhetha:Idatha ye-RK2675, I-RK9950uchungechunge, ngokwamandla omkhiqizo ohloliwe.Isigaba esisodwa singakhethwa kusuka ku-500VA-5000VA, futhi isigaba sesithathuI-RK2675WT, enemisebenzi emibili yezigaba ezintathu kanye nesigaba esisodwa.
Izinyathelo zokuhlola:
1: Ithuluzi livuliwe, futhi ukunikezwa kwamandla kusekelwe ngokuthembekile.
2: Vula iswishi yamandla wensimbi, iwindi lokubonisa insimbi lizokhanya.Cindezela inkinobho yokuhlola/yokusetha ngaphambilini, khetha ububanzi bamanje obungu-2mA/20mA, lungisa i-PRE-ADJ potentiometer, bese usetha i-alamu yamanje.Bese vela inkinobho yokusetha ngaphambilini/yokuhlola ukuze uhlole isimo.
3: Xhuma umkhiqizo kagesi ngaphansi kokuhlolwa ngethuluzi, qala ithuluzi, ukukhanya kokuhlola kuvuliwe, lungisa i-voltage adjustment knob ukuze wenze inkomba kagesi ihlangabezane nezidingo zokuhlola, futhi ngemva kokufunda inani lamanje elivuzayo, setha kabusha ithuluzi bese ulungisa. i-voltage ifika kokuncane.
Qaphela: Ngesikhathi sokuhlolwa, ungathinti igobolondo lensimbi ne-DUT.
Okwesithathu: ukuhlolwa kokumelana nomhlabathi
Izimo zokuhlola: i-25A yamanje, ukumelana ngaphansi kwe-100 milliohms.Hlola ukumelana phakathi komhlabathi okokufaka kwamandla kanye nezingxenye zensimbi eziveziwe zekesi.
Izinsimbi ozikhethela zona:Idatha ye-RK2678XM (okwamanje 30/32/70 ampere ozikhethela),I-RK7305 uchungechunge umshini olawulwa uhlelo,I-RK9930 uchungechunge (okwamanje 30/40/60 ampere ozikhethela), uchungechunge olulawulwa ngohlelo olunokukhishwa kwesignali ye-PLC, i-RS232, imisebenzi yokuxhumana ye-RS485.
izinyathelo zokuhlola
1: Xhuma intambo yamandla yethuluzi ukuze uqinisekise ukuthi insimbi isekelwe ngokuthembekile.
2: Vula amandla bese usetha kusengaphambili umkhawulo ophezulu wokumelana ne-alamu.
3: Xhuma intambo yokuhlola kutheminali yephaneli yensimbi ngokombala nobukhulu (intambo ewugqinsi ixhunywe eposini elikhulu, futhi ucingo oluncane luxhunywe kokuthunyelwe okuncane).
4: Iziqeshana zokuhlola zixhunywe phansi kwedivayisi ngaphansi kokuhlolwa (intambo yaphansi yesiphetho samandla okokufaka) kanye nendawo evikelayo yekesi (izingxenye zensimbi ezingenalutho) ukuze kuqinisekiswe ukuthi indawo yokuhlola ivuliwe, ngaphandle kwalokho ukuhlolwa kwamanje akukwazi ukulungiswa.
5: Qala ithuluzi (chofoza u-QALA ukuze uqale), ukukhanya kokuhlola insimbi kuvuliwe, lungisa okwamanje (uchungechunge olulawulwa uhlelo ludinga ukusetha kuqala) kunani elidingekayo lokuhlolwa, futhi ufunde inani lokumelana.
I-6: Uma ukuhlolwa kwehluleka, ithuluzi lizoba ne-alamu ye-buzzer (umsindo nokukhanya), futhi uchungechunge olulawulwa uhlelo lwemiphumela yokuhlola luzoba ne-PASS, izibani zezinkomba ze-FAIL kanye nama-alamu omsindo nokukhanya.
Isikhathi sokuthumela: Oct-19-2022
