Ukukhetha Ibhokisi Lokuhlanganisa Elifanele Lamaphaneli Elanga
Ezinhlelweni zokuphehla amandla elanga (i-PLTS), ukunaka kuvame ukugxila kumaphaneli elanga, i-inverter, kanye nebhethri. Kodwa-ke, kunesici esisodwa esibalulekile esivame ukunganakwa kodwa sidlala indima ebalulekile ekuphepheni nasekuhlelekeni kokufakwa: ibhokisi lokuhlanganisa. Ibhokisi lokuhlanganisa lisebenza ukuhlanganisa izintambo zamaphaneli elanga eziningi zibe umkhiqizo owodwa, ohlelekile futhi ovikelwe ngaphambi kokuba ungene ku-inverter noma kudivayisi elandelayo. Ukukhetha ibhokisi lokuhlanganisa elifanele akukhona nje "ibhokisi lokuhlanganisa izintambo," kodwa futhi mayelana nokuphepha, ukusebenza kahle, ukulula kokugcinwa, kanye nokuhambisana nezindinganiso zikagesi. Lesi sihloko sixoxa ngendlela yokukhetha ibhokisi lokuhlanganisa elifanele izidingo zakho zesistimu yamaphaneli elanga.
Iyini i-Combiner Box futhi Kungani Idingeka?
Ibhokisi lokuhlanganisa liyibhokisi lephaneli kagesi elihlanganisa imigqa eminingi yokukhipha amaphaneli elanga (izintambo) emgqeni owodwa oyinhloko wokukhipha. Intambo ngayinye ivame ukuhlonyiswa ngesivikelo, njenge-fuse noma i-circuit breaker (i-MCB/DC breaker), futhi ivame ukufaka nedivayisi yokuvikela ukukhuphuka (i-SPD) yokuvikela umbani/ugesi. Ngaphandle kwebhokisi lokuhlanganisa, izintambo ezivela kuma-string amaningi zingagijima ngqo ku-inverter, okwenza ukufakwa kube nzima, kube nzima ukukulandelela uma kwenzeka iphutha, kanye nengozi enkulu uma kungekho sivikelo sentambo ngayinye.
Ezinhlelweni zasekhaya ezinezintambo ezimbalwa, ukusetshenziswa kwebhokisi lokuhlanganisa ngezinye izikhathi kubhekwa njengokuzikhethela. Kodwa-ke, ezinhlelweni ezinkulu—noma ekufakweni okudinga ukuhlanzeka, ukuphepha, kanye nokulungiswa okulula—ibhokisi lokuhlanganisa cishe linconywa njalo.
Qonda Ukucushwa Kwesistimu: Inani Lezintambo kanye Nokugeleza Okuphelele
Isinyathelo sokuqala ekukhetheni ibhokisi lokuhlanganisa ukuqonda ukucushwa kwe-solar panel array yakho:
1. Inani lezintambo
Amabhokisi okuhlanganisa atholakala ngezindlela ezahlukene, njenge-2-in-1-out, 4-in-1-out, 6-in-1-out, kanye nama-intshi angu-24 noma ngaphezulu kumaphrojekthi ezentengiselwano. Khetha ngokwenani lezintambo ofuna ukuzihlanganisa, bese ushiya isikhala sokwandiswa uma kungenzeka.
2. Umshini wamanje ngentambo kanye nomshini wamanje ophelele
Intambo ngayinye inomsinga omkhulu (Isc—umsinga wesifunda esifushane) kanye nomsinga osebenzayo (Imp). Ukuvikelwa ebhokisini lokuhlanganisa kumele kukwazi ukuphatha la maza. Ngaphezu kwalokho, umsinga wokukhipha ohlanganisiwe uyisamba sazo zonke izintambo ezihlanganisiwe. Qinisekisa ukuthi izilinganiso zamanje zama-busbar, ama-terminals, kanye nama-circuit breakers ekuphumeni zingaphatha umsinga ophelele nge-margin ephephile.
3. I-voltage yesistimu (i-Voc)
I-voltage ye-DC evela kusekethe yephaneli ingaba phezulu, ikakhulukazi ezinhlelweni ze-string inverter. Ibhokisi le-combiner kumele libe nesilinganiso se-voltage esifanele (isb., 600V DC, 1000V DC, noma 1500V DC), kuye ngomklamo wesistimu kanye nemininingwane ye-inverter.
Iphutha elivame kakhulu ukukhetha ibhokisi lokuhlanganisa "elifanele ngokomzimba" kodwa elinesilinganiso sikagesi esingafanele. Lokhu kungaholela ekushiseni ngokweqile, ukuhamba njalo, noma ngisho nobungozi bomlilo.
Khetha Isivikelo Esifanele: I-Fuse, i-DC Breaker, kanye ne-SPD
Ibhokisi elihle lokuhlanganisa livame ukuba nezinhlobo eziningana zokuvikela. Udinga ukunquma ukuthi yiziphi ezidingekayo ohlelweni lwakho.
1. Ukuvikelwa ngentambo ngayinye: I-Fuse noma i-MCB/DC breaker
– Ama-fuse e-DC avame ukusetshenziselwa ukuvikela intambo ngayinye ku-reverse current lapho kwenzeka iphutha kwenye yezintambo. I-fuse kumele ibe ne-DC rating eyanele kanye ne-current rating ngokwezibalo zobuchwepheshe.
– Ama-DC breaker (i-MCB DC) ahlinzeka ngokuxhuma nokusetha kabusha okulula, kodwa kubalulekile ukuqinisekisa ukuthi angohlobo lwe-DC ngempela futhi anamandla okuphuka afanele.
Emiklamo eminingi, i-fuse ye-per-string ibhekwa njengejwayelekile, ikakhulukazi uma kunezintambo eziningi ezihambisanayo. Uma izintambo zihambisana kakhulu, ukuvikelwa kwamanje okuphambene kubaluleke kakhulu.
2. I-Main breaker (ukunqamula okukhulu)
Amanye amabhokisi okuhlanganisa ahlinzeka ngeswishi yokuxhuma noma i-main breaker ekuphumeni. Lokhu kuyasiza ekulungiseni, ekuxazululeni izinkinga, noma eziphuthumayo. Qinisekisa ukuthi idivayisi yokuxhuma inezilinganiso zamanje ze-DC kanye ne-voltage ezifanele futhi yenzelwe imithwalo ye-DC (njengoba ukuxhuma i-DC kunzima kakhulu kune-AC).
3. I-Surge Protection Device (SPD)
Ama-SPD abaluleke kakhulu ezindaweni ezivame ukuba nombani noma ukufakwa okunezintambo ezinde. Asiza ekuvikeleni i-inverter nezinye izingxenye ekukhuphukeni kwamandla kagesi. Khetha i-SPD:
– Ngokusho kwe-voltage yesistimu (isb. i-Ucpv ye-PV).
– Yiba nohlobo olufanele (Uhlobo 2 luvame ukufakwa okuningi, Uhlobo 1+2 ezindaweni ezinengozi yokushaywa ngqo noma izinhlelo ezithile zokuvikela umbani).
– Ifakwe izinkomba zesimo futhi kulula ukuyishintsha amamojula.
Naka Ikhwalithi Yokumboza: Isilinganiso se-IP, Izinto, kanye Nendawo Yokufaka
Amabhokisi okuhlanganisa ngokuvamile afakwa ngaphandle noma ezindaweni ezivulekile kancane, eduze kwephaneli noma i-inverter. Ngakho-ke, ikhwalithi yebhokisi ibalulekile ekuqineni nasekuphepheni.
1. Isilinganiso se-IP (ukuvikelwa othulini nasemanzini)
Ukusetshenziswa ngaphandle, okungenani i-IP65 ivame ukunconywa. Uma indawo inothuli kakhulu noma ihlangabezana nemvula enkulu njalo, i-IP65–IP67 iphephile.
2. Ibhokisi lezinto ezibonakalayo
– I-Polycarbonate/ABS: ayigqwali, ilula, ifaneleka ezindaweni ezinomswakama, kodwa kumele iqinisekiswe ukuthi imelana ne-UV.
– Insimbi (insimbi/engagqwali): iqinile futhi ayishayisani, kodwa idinga ukugqoka okulwa nokugqwala; insimbi engagqwali imelana nokugqwala kodwa ibiza kakhulu.
3. Ukumelana ne-UV kanye nokushisa
Ezindaweni ezishisayo njenge-Indonesia, ukuchayeka elangeni kanye namazinga okushisa aphezulu kungasheshisa ukuguga kwezinto. Khetha indawo ebiyelwe enezincazelo ezingamelani ne-UV kanye nezinga lokushisa elifanele lokusebenza.
4. Ukuphathwa kokushisa kwangaphakathi kanye nesikhala
Izinto zokuvikela ezifana nama-fuse nama-SPD zingakhiqiza ukushisa. Ibhokisi elincane kakhulu libamba ukushisa, lifinyeze isikhathi sokuphila kwengxenye. Khetha ibhokisi elikhulu ngokwanele futhi elinesakhiwo esihle.
Ukuxhumana kanye Nokulula Kokufakwa
Ibhokisi elihle lokuhlanganisa aligcini nje ngokuphephile kodwa futhi lenza ukufakwa nokugcinwa kube lula kochwepheshe. Cabanga ngalokhu okulandelayo:
– Ama-terminal/amabhasi asezingeni eliphezulu anokuxhumana okuqinile kanye ne-polarity ecacile.
– Ama-cable glands alingana nosayizi we-cable futhi ahlala eqinile (angavuzi kalula).
– Ukulebula intambo ngayinye ukuze kube lula ukubona ukuthi kukhona intambo enenkinga.
– Ukuhambisana kwesixhumi (isb. i-MC4) uma ibhokisi lesihlanganisi lisebenzisa okokufaka kwesixhumi okulungele ukusetshenziswa.
– Indawo yokusebenza yokuhlelwa kahle kwekhebula, kufaka phakathi irediyasi yokugoba kwekhebula ukuze kungalimazi ukufudumala.
Ukufakwa kahle akugcini nje ngokujabulisa iso, kodwa futhi kusiza kakhulu ekuxazululeni izinkinga, kunciphisa ingozi yokuxhumeka okuxekethile, futhi kuthuthukisa ukuphepha.
Ukuthobela Izindinganiso kanye Nesitifiketi
Lesi sici sivame ukunganakwa ngoba sibhekwa "njengebhokisi nje," kodwa empeleni sibalulekile. Qinisekisa ukuthi ibhokisi lokuhlanganisa kanye nezingxenye zalo ziyahlangabezana nezitifiketi noma amazinga afanele, isibonelo:
– IEC/EN yamadivayisi okuvikela kanye nezindawo zokuvala,
- Izindinganiso ze-PV ze-SPD,
– kanye nekhwalithi efanele yezingxenye ze-DC (amadivayisi amaningi emakethe empeleni afanelekela i-AC kuphela).
Ukusebenzisa izingxenye ezingahambisani ne-DC kuyingozi kakhulu ngoba izici ze-arc ze-DC kunzima kakhulu ukuzicima, ngaleyo ndlela kwandisa ingozi yomlilo.
Yenza ngokwezifiso ngohlobo lwesistimu: On-Grid, Off-Grid, noma Hybrid
Izidingo zebhokisi lokuhlanganisa zingahluka kuye ngohlobo lwesistimu:
– I-On-grid (i-string inverter): igxile ekuhlanganisweni kwe-string, ukuvikelwa kwe-DC, kanye ne-SPD ukuvikela i-inverter.
– I-Off-grid/hybrid: Ngaphezu kwama-PV arrays, ngezinye izikhathi kudingeka ukusethwa okuyinkimbinkimbi kakhulu kanye nokunqanyulwa okucacile ngenxa yokuba khona kwamabhethri kanye nezilawuli zokushaja. Ezinye izinhlelo zidinga amabhokisi ahlukene okuhlanganisa amaphaneli e-PV kanye nokusabalalisa imithwalo.
– Izinhlelo ezinkulu: zingadinga ibhokisi lokuhlanganisa elinokuqapha izintambo ukuze ukusebenza kwezintambo ngayinye kuqashwe.
Uma ufuna ukuqapha, khetha ibhokisi lokuhlanganisa elisekela izinzwa zamanje, ukuxhumana (RS485/Modbus), noma okungenani linikeze isikhala samadivayisi engeziwe okuqapha.
Izinto Okufanele Uzicabangele Ngezindleko: Ungathengi Izinto Ezishibhile Ngokuphepha
Amanani ebhokisi le-Combiner ayahlukahluka kuye ngenani lezinto ezifakiwe, ikhwalithi ye-enclosure, ukuvikelwa kwangaphakathi, kanye nezinhlobo zezingxenye (izibambi ze-fuse, ama-SPD, ama-breaker). Ukonga imali ngokuthenga ibhokisi le-combiner elishibhile elingenaso isilinganiso esicacile kungabangela:
– impilo yesevisi emfushane,
- ukuphazamiseka okuvamile kwesistimu,
– umonakalo we-inverter,
– ingozi yomlilo noma ukushaqeka ngogesi.
Kungcono ukukhetha ibhokisi lokuhlanganisa elibiza kancane kodwa elinemininingwane ecacile kanye nekhwalithi, ngoba lokhu kuwukutshala imali ekuphepheni nasekuthembekeni.
Isiphetho
Ukukhetha ibhokisi lokuhlanganisa elifanele lesistimu yakho yephaneli yelanga kufanele kusekelwe ekucushweni kwentambo, ugesi wesistimu kanye ne-voltage, izidingo zokuvikela (i-fuse/DC breaker, i-main disconnect, i-SPD), ikhwalithi yokuvala (isilinganiso se-IP, izinto zokwakha, ukumelana ne-UV), kanye nokuhambisana nezindinganiso. Ibhokisi lokuhlanganisa lingaphezu nje kwesengezo; liyisikhungo esiyinhloko sokuhlanganiswa nokuvikelwa, okusiza uhlelo lwakho lwe-PV ukuthi lusebenze ngokuphepha, ngempumelelo, futhi lugcinwe kalula. Ngokukhetha ibhokisi lokuhlanganisa elifanele, awuvikeli nje kuphela imishini ebizayo njengama-inverters kodwa futhi uthuthukisa ukuthembeka kwesikhathi eside kwesistimu yakho yelanga.
Uma ufuna, ngingakusiza ukuncoma imininingwane yebhokisi le-combiner ngokusekelwe kudatha yesistimu yakho (inani lamaphaneli, uchungechunge/ukucushwa okuhambisanayo, i-Voc/Isc, kanye nohlobo lwe-inverter).
