"Phoso ea ho itšehla thajana" ke eng?
Litsamaisong tsa photovoltaic tse nang le inverter e fokolang e fokolang, DC e arohane le fatše. Li-module tse nang le bothata ba ho itšehla thajana, lithapo tse sa sirelelitsoeng, li-optimizer tsa matla tse senyehileng, kapa phoso e ka hare ea inverter e ka etsa hore DC e lutla fatše (PE - protective earth). Phoso e joalo e boetse e bitsoa phoso ea ho itšehla thajana.
Nako le nako ha mochine oa Renac o kena ka mokhoa oa ts'ebetso 'me o qala ho hlahisa matla, ho hanyetsana pakeng tsa fatše le li-conductor tsa DC hona joale ho hlahlojoa. Inverter e bonts'a phoso ea ho itšehla thajana ha e bona khanyetso e kopaneng ea ho itšehla thajana e ka tlase ho 600kΩ ho li-inverters tsa mohato o le mong, kapa 1MΩ ho li-inverters tse tharo tsa mekhahlelo.
Phoso ea ho itšehla thajana e etsahala joang?
1. Boemong ba leholimo bo mongobo, palo ea liketsahalo tse amanang le litsamaiso tse nang le liphoso tsa ho itšehla thajana lia eketseha. Ho lekola phoso e joalo ho ka etsahala feela ka nako eo e etsahalang. Hangata ho tla ba le phoso ea ho itšehla thajana hoseng hoo ka linako tse ling e nyamelang hang ha mongobo o rarolla. Maemong a mang, ho thata ho fumana hore na ke eng e bakang phoso ea ho itšehla thajana. Leha ho le joalo, hangata e ka behelloa ka tlase ho mosebetsi o mobe oa ho kenya.
2. Haeba tšireletso holim'a wiring e senyehile nakong ea ho loketse, potoloho e khutšoanyane e ka etsahala pakeng tsa DC le PE (AC). Sena ke seo re se bitsang phoso ea ho itšehla thajana. Ntle le bothata ba ho sireletsa cable, phoso ea ho itšehla thajana e ka boela ea bakoa ke mongobo kapa khokahanyo e mpe ka lebokoseng la mateano la solar panel.
Molaetsa oa phoso o hlahang skrineng sa inverter ke "phoso ea ho itšehla thajana". Bakeng sa mabaka a ts'ireletso, hafeela phoso ena e ntse e le teng, inverter e ke ke ea fetola matla leha e le afe kaha ho ka 'na ha e-ba le boemo bo sokelang bophelo likarolong tsa conductive tsa tsamaiso.
Hafeela ho ntse ho e-na le khokahanyo e le 'ngoe feela ea motlakase pakeng tsa DC le PE, ha ho na kotsi e potlakileng ho tloha ha tsamaiso e sa koaleha 'me ha ho na motlakase o ka phallang ho eona. Leha ho le joalo, kamehla u be hlokolosi hobane ho na le likotsi:
1. Potoloho ea bobeli e khutšoanyane ho ea lefats'eng e etsahetse PE (2) ho theha nako e khutšoanyane ea potoloho ka li-modules le wiring. Sena se tla eketsa kotsi ea mollo.
2. Ho ama li-module ho ka lebisa likotsing tse mpe tsa 'mele.
2. Tlhahlobo
Ho latela phoso ea ho itšehla thajana
1. Tima khokahanyo ea AC.
2. Lekanya le ho ngola lintlha tsa motlakase o bulehileng oa likhoele tsohle.
3. Tlosa PE (lefatše la AC) le lefats'e leha e le lefe ho tloha ho inverter. Tlohela DC e hokahane.
- LED e khubelu e khantša ho bontša phoso
- Molaetsa oa phoso ea ho itšehla thajana ha o sa hlahisoa hobane inverter ha e sa khona ho bala lipakeng tsa DC le AC.
4. Hakolla lithapo tsohle tsa DC empa u boloke DC+ le DC- khoele ka 'ngoe li kopane.
5. Sebelisa voltmeter ea DC ho lekanya matla a motlakase pakeng tsa (AC) PE le DC (+) le pakeng tsa (AC) PE le DC - 'me u ngole li-voltage ka bobeli.
6. U tla bona hore 'malo o le mong kapa ho feta ha o bontše 0 Volt (Pele, ho bala ho bontša motlakase oa potoloho o bulehileng, ebe o theohela ho 0); likhoele tsena li na le phoso ea ho itšehla thajana. Li-voltages tse lekantsoeng li ka thusa ho latela bothata.
Ka mohlala:
Khoele e nang le liphanele tsa letsatsi tse 9 Uoc = 300 V
PE le +DC (V1) = 200V (= dimojule 1, 2, 3, 4, 5, 6,)
PE le –DC (V2) = 100V (= dimojule 7, 8, 9,)
Phoso ena e tla fumaneha lipakeng tsa module 6 le 7.
TLHOKOMELO!
Ho ama likarolo tse sa kenngoeng tsa khoele kapa foreimi ho ka baka kotsi e mpe. Sebelisa lisebelisoa tse nepahetseng tsa tšireletso le lisebelisoa tsa ho metha tse sireletsehileng
7. haeba likhoele tse lekantsoeng kaofela li lokile, 'me inverter e ntse e etsahala phoso "phoso ea ho itšehla thajana", bothata ba hardware ea inverter. Letsetsa tšehetso ea tekheniki ho fana ka phetoho.
3. Qetello
"Phoso ea ho itšehla thajana" hangata ke bothata bo lehlakoreng la liphanele tsa letsatsi (bothata bo fokolang feela ba li-inverter), haholo-holo ka lebaka la boemo ba leholimo bo mongobo, mathata a khokahano ea liphanele tsa letsatsi, metsi a mabokoseng a mateano, liphanele tsa letsatsi kapa likhoele tse tsofalang.