Yini "iphutha lokuhlukaniswa"?
Kuzinhlelo ze-Photovoltaic ezine-inverter-ye-transformer-engaphansi, i-DC ihlukaniswe emhlabathini. Amamojula ane-module ephulukayo, izintambo ezingaphendulwanga, ama-activelizers angenakuphikwa, noma iphutha elingaphakathi le-inverter angadala ukuvuza kwamanje kwe-DC ku-Ground (PE - Umhlaba Ovikelayo). Iphutha elinjalo libizwa nangokuthi iphutha lokuzihlukanisa.
Njalo lapho i-renac inverter ingena kwimodi yokusebenza futhi iqala ukukhiqiza amandla, ukumelana phakathi komhlaba kanye nabaqhubi abaphethe amanje be-DC kuyahlolwa. I-Inverter ikhombisa iphutha lokuzihlukanisa lapho ithola ukumelana okuhlangene okuhlangene kokungaphansi kwama-600kω esigabeni esisodwa sokungena ngaphakathi, noma 1m ω kwi-Inverters yesigaba emithathu.
Kwenzeka kanjani iphutha le-isolate?
1. Ngesimo sezulu esinomswakama, inani lezehlakalo ezibandakanya amasistimu ngamaphutha okuhlukahluka kwezokwehla. Ukulandelela phansi iphutha elinjalo kungenzeka kuphela lapho kwenzeka. Imvamisa kuzoba nephutha lokuhlukaniswa ekuseni kwesinye isikhathi elinyamalala ngokushesha nje lapho umswakama uxazulula. Kwezinye izimo, kunzima ukuthola ukuthi yini ebangela iphutha lokuzihlukanisa. Kodwa-ke, ngokuvamile kungabekwa phansi emsebenzini wokufaka we-Shoddy.
2. Uma ukuvikelwa ku-wiring kulimele ngesikhathi esifanele, isekethe emfushane kungenzeka phakathi kwe-DC ne-PE (AC). Lokhu yilokho esikubiza ngephutha lokuzihlukanisa. Ngaphandle kwenkinga ngokuvikelwa kwekhebula, iphutha lokuhlukaniswa kungenzeka futhi kubangelwa umswakama noma ukuxhumana okubi ebhokisini le-solar panel gentract.
Umlayezo wephutha ovela esikrinini se-inverter "iphutha lokuhlukaniswa". Ngenxa yezizathu zokuphepha, inqobo nje uma leli phutha likhona, i-inverter ngeke iguqule noma yimaphi amandla njengoba kungaba nokusongela impilo ezingxenyeni ezisebenzayo zohlelo.
Uma nje kunolunye uxhumano kagesi phakathi kwe-DC ne-PE, ayikho ingozi esheshayo ngoba uhlelo aluvaliwe futhi akukho okwamanje okungahamba ngakho. Noma kunjalo, hlinzeka ngokucophelela njalo ngoba kukhona izingozi:
1. Isizungu esifushane sesibili esisemhlabeni Lokhu kuzokwandisa ingozi yomlilo.
2. Ukuthinta amamojula kungaholela ekulimaleni kanzima ngokomzimba.
2. Ukuxilongwa
Ukulandelela Iphutha Lokuhlukaniswa
1. Cisha uxhumano lwe-AC.
2. Kala futhi ubhale inothi likagesi ovulekile wazo zonke izintambo.
3. Nqamula i-PE (AC Earth) nanoma iyiphi into endle evela kwi-inverter. Shiya i-DC exhunyiwe.
- Izibani ezibomvu ze-LED zize zisayina iphutha
- Umlayezo we-Isolation Fault akayona eboniswa ngoba i-inverter ayisakwazi ukuthatha ukufundwa phakathi kwe-DC ne-AC.
4. Nqamula yonke i-DC wiring kepha ugcine i-DC + ne-DC- kusuka kunhlanganisela ngayinye ndawonye.
I-5. Sebenzisa i-DC voltmeter ukukala i-voltage phakathi (AC) pe ne-DC (+) naphakathi (AC) pe ne-DC - bese ubhala inothi lazo zombili ama-voltages.
6. Uzobona ukuthi ukufundwa okukodwa noma okuningi akubonisi i-0 Volt (Okokuqala, ukufunda kukhombisa i-Open Circuit Voltage, khona-ke yehla ku-0); Lezi zintambo zinephutha lokuzihlukanisa. Ama-voltage alinganiswa angasiza ekulandeleleni inkinga.
Ngokwesibonelo:
Intambo enamaphaneli ayi-9 elanga = 300 v
I-PE ne + DC (V1) = 200V (= amamojula 1, 2, 3, 4, 5, 6,)
I-PE ne -DC (V2) = 100V (= amamojula 7, 8, 9,)
Leli phutha lizotholakala phakathi kwe-module 6 no-7.
Ukuqapha!
Ukuthinta izingxenye ezingafakwanga ngaphandle kwezinhlaka zentambo noma uhlaka kungadala ukulimala okukhulu. Sebenzisa amagiya okuphepha afanele kanye namathuluzi wokulinganisa aphephile
7. Uma yonke imicu ephakeme ilungile, futhi i-inverter isenzeka iphutha "iphutha lokuhlukanisa" Shayela ukwesekwa kobuchwepheshe ukunikela ngokubuyiselwa.
3. Isiphetho
"I-Isolation Fault" ngokuvamile yinkinga ohlangothini lwe-solar panel (ezimbalwa nje ze-inverter), ikakhulukazi ngenxa yesimo sezulu esinomswakama, izinkinga zokuxhumana zeSolar Panel, amanzi ebhokisini noma amakhabethe.