Umhlahlandlela Ophelele We-AC/DC SPDs, Izithiyo Zokuvinjelwa Kokukhuphuka, kanye Nokuvikelwa Kwe-PV

Ngivame ukukhathazeka ngesikhathi sokungasebenzi kwesistimu lapho ukwanda okungalindelekile kuhlasela amaphrojekthi ami, ngakho-ke ngithembele ku- Idivayisi Evikelayo Yokukhuphuka Enesibindi ukugcina konke ukufakwa kuzinzile futhi kubikezelwa.

Idivayisi Evikela Ukwanda (i-SPD) kanye ne-surge arrester kuyizingxenye zokuvikela zikagesi ezisetshenziselwa ukuphambukisa umbani noma ukushintsha ukukhuphuka kwegesi kude nemishini. Zivikela izinhlelo ze-PV, amanethiwekhi e-AC, abalawuli, kanye nemishini yezimboni ngokuvala ama-voltage ayingozi ngaphambi kokuba afinyelele kuma-elekthronikhi abucayi.

Uma ufuna ukuvikelwa okunamandla kokuqhuma kwamafektri, izakhiwo, noma izitshalo zelanga, ukuqonda ukuthi ama-SPD asebenza kanjani kuzokusiza ukuthi ukhethe i-SPD yezimboni efanele futhi kunciphise izingozi zokusebenza zesikhathi eside. Manje ake ngichaze konke ngokucacile.

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Yiziphi Izinto Ezivimbela Ukwanda kanye nama-SPD Ezinhlelweni Zikagesi Nelanga

Ngivame ukubona ukudideka phakathi kwama-SPD kanye nabavimbeli bokukhuphuka kwentengo, futhi kuyabacasula amaqembu okuthenga afuna nje ukuvikelwa okuthembekile.

Izithibi zokuqhuma kanye nama-SPD womabili avikela izinhlelo zikagesi ekushiseni kwamandla aphezulu. Ama-SPD ayabamba futhi aguqule ukukhuphuka, kuyilapho izithibi zokuqhuma zivimba ukushukuma kombani emazingeni aphezulu amandla. Womabili anciphisa ukwehluleka kwemishini futhi athuthukisa ukuthembeka kohlelo.

Izithibi zomsinga kanye nama-SPD zisebenza ngendlela ehlukile yize zihlose inkinga efanayo. I-SPD isebenzisa kakhulu izingxenye ze-MOV noma ze-GDT ukunciphisa ama-voltage spikes adlulayo. Isithibi somsinga sivame ukufakwa emnyango wesevisi ukuvimba ama-lightning impulses anamandla aphezulu ukuthi angangeni esakhiweni. Ngisebenzisa ama-SPD kumasekethe angezansi ngoba asebenza ngokushesha, kuyilapho ngisebenzisa izithibi zomsinga ephanelini eliyinhloko lemicimbi yombani osindayo.

Incazelo ye-SPD vs Surge Arrester

I-SPD inciphisa i-overvoltage ngokucindezela i-surge, kuyilapho i-surge arrester idlulisela umbani onamandla aphezulu phansi ngaphandle kokuwuvumela ungene endaweni. Ngihlala ngichaza lo mehluko ukuze ngigweme ukukhetha umkhiqizo okungalungile.

Indlela Ubuchwepheshe be-MOV Obusebenza Ngayo Kumadivayisi Okwanda

Ama-MOV ashintsha ukumelana ngokusekelwe ku-voltage. Uma kwenzeka ukwanda, ukumelana kwe-MOV kwehla ngokushesha, kuthumele amandla angaphezulu emhlabathini. Lokhu kusabela kuyashesha, kuzinzile, futhi kulungele izinhlelo zokusebenza ze-SPD zezimboni.

Izingxenye Eziyinhloko: I-MOV, i-GDT, i-Thermal Fuse

• I-MOV iphatha ukukhuphuka okusheshayo

• I-ADG iphatha imisinga emikhulu yombani

• I-fuse yokushisa iyanqamuka uma i-MOV ishisa kakhulu

Lezi zingxenye ezintathu zisebenza ndawonye ukuze zinikeze isivikelo esizinzile.

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Izinhlobo ze-SPD zezinhlelo zamandla ze-PV, AC, kanye ne-DC

Ngivame ukusebenza nezinhlelo ze-AC/DC ezixubile, futhi ukukhetha uhlobo olungalungile lwe-SPD kungabangela ukwehluleka noma ukusebenza okungaphephile.

Ama-SPD ahlukaniswa ngokwesikhundla sokufakwa, uhlobo lwe-voltage, kanye nezinga lokuvikelwa. Uhlobo 1 Iphatha ukuqhuma kombani, Uhlobo 2 luphatha ukushintsha ama-transients, kanti Uhlobo 3 luvikela amadivayisi e-terminal. Ama-AC SPD avikela amasekethe egridi, kuyilapho ama-DC SPD evikela izintambo ze-PV ezifinyelela ku-1000V.

Ngezansi kunezigaba ezivamile ze-SPD engizisebenzisa kumaphrojekthi ezimboni kanye nelanga:

Izigaba ze-SPD ngokwesicelo

I-AC SPD Yezinhlelo Zesigaba Esisodwa Nezigaba Ezi-3

Ngisebenzisa ama-AC SPD emabhodini okusabalalisa ukuvikela ama-motor, izinhlelo ze-HVAC, kanye nemishini yezimboni. Ama-SPD ezigaba ezintathu ahlinzeka ngokuvikelwa okulinganiselayo ku-L1, L2, kanye ne-L3.

I-DC SPD yezinhlelo ze-PV ezifika ku-1000V

Ama-PV DC SPD avikela ama-solar arrays, ama-inverter, namabhokisi okuhlanganisa. Lawa ma-SPD aklanyelwe ukusingatha ukucindezeleka okuqhubekayo kwe-DC voltage ngokuphephile.

Kuchazwa Uhlobo 1, Uhlobo 2, kanye Nohlobo 3 Lwezivikeli Zokukhuphuka

• Uhlobo 1: ukuvikelwa kombani ngaphambili

• Uhlobo 2: ukuvikelwa kokunyuka kokushintshana okungezansi

• Uhlobo 3: ukuvikelwa kwemishini yokugcina

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Ukuvikelwa Kokukhuphuka Kwezinhlelo Zikagesi ze-480V kanye ne-110V

Uma ngisiza onjiniyela ukuthi bakhethe ama-SPD, isilinganiso se-voltage sihlala siyisinqumo sokuqala.

Izinhlelo ze-480V kanye ne-110V zidinga imikhawulo ehlukene ye-SPD voltage ukuze zibambe ama-surge ngokuphephile. Isivikelo sokukhuphuka kwe-480V esinezigaba ezintathu siphatha imithwalo yezimboni, kuyilapho ama-SPD e-110V/220V evikela izifunda zasekhaya nezezentengiselwano.

Izigaba ze-Voltage kanye nokukhethwa kwe-SPD

Iyini i-480V 3-Phase Surge Protector?

Le SPD ivikela izinjini zezimboni, ama-transformer, ama-VFD, kanye namanethiwekhi okusabalalisa ezindaweni ezinkulu. Kumelwe ibhekane nogesi ophezulu futhi imelane nokuphakama okuphindaphindiwe.

Indlela ama-SPD angu-110V kanye nama-220V asebenza ngayo ezinhlelweni zokuhlala

Amasekethe okuhlala adinga i-voltage ephansi yokubopha ukuze avikele ama-elekthronikhi abucayi. Lawa ma-SPD asabela ngokushesha ekushintsheni kwamandla avela kumadivayisi.

Isivikelo Esiyisisekelo Sokukhuphuka vs I-SPD Ethuthukisiwe

Isivikelo sokukhuphuka esiyisisekelo sinikeza ukuhlunga okuncane okusekelwe ku-MOV. I-SPD yezimboni inikeza izixhumi zokushisa, izinkomba zesimo, amamojula angashintshwa, kanye nezilinganiso zamandla aphezulu.

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Ukuvikelwa Kokukhuphuka Kwe-PV Kwamaphaneli Elanga Nama-Inverter

Izitshalo zelanga zizwela kakhulu ekukhanyeni kombani kanye nokushintshashintsha komoya, ngakho-ke ngihlala ngincoma ukubeka ama-SPD kokubili ezinhlangothini ze-AC kanye ne-DC.

Ama-PV SPD avikela izintambo zelanga, ama-inverter, abalawuli be-MPPT, namadivayisi okuqapha. Anciphisa isikhathi sokungasebenzi futhi andise isikhathi sokuphila kwesistimu.

Izindawo Zokuvikela ze-PV

Isivikelo Sokukhuphuka Kwezinhlelo Zamandla Elanga

Lawa ma-SPD aklanyelwe ukusingatha ukukhuphuka kwamandla kagesi e-DC okuqhubekayo kanye nombani okuvamile ekufakweni kwensimu evulekile.

Indima ye-SPD kuma-DC Combiner nama-PV Array Boxes

Amabhokisi okuhlanganisa ayizindawo zokuqala zokungena kwama-surge. Ama-SPD kumele afakwe lapha ukuze kumiswe iningi lamandla ngaphambi kokuba afike ku-inverter.

Indlela Yokuvikela Ama-Elektroniki Nezilawuli Zelanga

Ngivikela abalawuli ngokungeza ama-SPD ohlobo lwesibili ku-output kanye nama-SPD ohlobo lwesibili ku-input. Lokhu kudala uchungechunge lokuvikela oluhlanganisiwe.

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Izidingo Zokufakwa Kwe-AC/DC SPDs Ezinhlelweni Zelanga

Ukufakwa kabi kuyimbangela enkulu yokwehluleka kwe-SPD, futhi ngivame ukukubona lokhu emafektri nasemapulazini elanga.

Izintambo eziqinile, ukusekela phansi, kanye nokukhetha i-SPD kuvimbela ukushisa ngokweqile, ukukhubeka okungamanga, kanye nomonakalo wokushisa. Abafaki kumele balandele izindlela ezimfushane zokuxhuma kanye nokubopha okufanele.

Izintambo Ezifanele Zesigaba Esisodwa Se-AC SPD Nezigaba Ezi-3

Ngigcina ubude bezintambo bungaphansi kuka-0.5m ukuze ngithuthukise isikhathi sokuphendula se-SPD. Izintambo ezinde zinciphisa amandla okuvikela.

Indlela yokufaka i-SPD kumasekethe e-PV DC 1000V

Ama-PV DC SPD kumele afakwe nge-polarity efanele kanye ne-grounding. Ngilandela imidwebo yomkhiqizi ngokuqinile ukuze ngigweme izingozi zamandla angemuva.

Izidingo Zokuqinisa Nokubopha Zamadivayisi Okuhlinzwa

Ukubopha kumele kube nokuvinjelwa okuphansi futhi kuxhunywe kubha yebhasi enkulu yokudonsa umhlaba. Ukungagqwali kahle kubangela ukungasebenzi kahle kwe-SPD.

Ukukhetha Ibhokisi Lesembozo Esivikela Ukwanda Elifanele

Ukufakwa kwangaphandle kudinga izivikelo ze-IP65 noma ngaphezulu ukuvimbela ukulimala komswakama.

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Umsebenzi we-MOV Surge Arrester kanye nokuziphatha kokuvikela

Ama-MOV ayisisekelo sama-SPD amaningi engiwasebenzisayo, ikakhulukazi ezindaweni zezimboni.

Izithiyo zokuvimba ukukhuphuka kwe-MOV zibamba ukukhuphuka ngokunciphisa ukumelana ngokushesha lapho i-voltage idlula umkhawulo. Zihlinzeka ngokuvikelwa okusheshayo nokuzinzile kwamafektri nezinhlelo zelanga.

Kuyini i-MOV Surge Arrester

Isebenzisa izinto ze-semiconductor ze-metal-oxide ukuthola ukuphakama nokukujikisa emhlabathini.

Izindlela Zokwehluleka kwe-MOV kanye Nokunqanyulwa Kokushisa

Ama-MOV angase ashise kakhulu ngemva kokuqhuma okuphindaphindiwe, ngakho-ke ama-fuse okushisa ayanqamuka ngokuphephile. Ngikhetha ama-SPD kuphela anezici zokuhlukanisa ukushisa.

Indlela Amadivayisi E-MOV Avikela Ngayo Imizwa Yombani

Zimunca ingxenye engaphambili yokukhanya kombani futhi zivimbele ukuthi ingangeni kuma-elekthronikhi angaphansi komfula.

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Umhlahlandlela Wokuthenga: Indlela Yokukhetha I-SPD Efanele Yesicelo Sakho

Uma ngisiza amaqembu okuthenga, ngihlala ngigxila ku-voltage, isilinganiso samanje, kanye nesitifiketi.

Khetha ama-SPD ngokusekelwe ku-voltage yesistimu, isilinganiso se-Imax, isikhathi sokuphendula, kanye nezitifiketi ezifana ne-UL1449/IEC61643. Kumasistimu e-AC/DC axubile, khetha ama-SPD ahlukene ohlangothini ngalunye.

Ama-SPD okulinganisa amasistimu angu-100A, 220V, kanye no-480V

Izinhlelo ze-voltage ephezulu zidinga izilinganiso eziphezulu ze-MCOV kanye ne-Imax. Imigqa yezimboni engu-480V idinga ama-SPD ohlobo lwe-1/2 aqinile.

Ukukhetha i-AC vs i-DC SPD yezinhlelo zelanga ezixubile

Ungalokothi uwashintshe. Ama-DC SPD aphatha i-polarity eqhubekayo; ama-AC SPD akhelwe ukushintshana kwamagagasi.

Indlela Yokukhetha Imikhiqizo Nezitifiketi ze-SPD

Ngikhetha abahlinzeki abane-QC ezinzile, amadokhumenti acacile, kanye nokulethwa okubikezelwayo—ikakhulukazi kumakhasimende amakhulu okukhiqiza afana nelakho.

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Isiphetho

Khetha ikhwalithi ephezulu Idivayisi Evikelayo Yokukhuphuka Enesibindi ukuvikela yonke ingxenye yesistimu yakho kagesi noma yelanga nokunciphisa izingozi zesikhathi eside.

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Imibuzo Evame Ukubuzwa

1. Ingabe ngidinga kokubili ama-SPD ohlobo 1 kanye nohlobo 2?

Yebo. Uhlobo 1 luphatha amandla ombani, kanti Uhlobo 2 luphatha ukushintshashintsha kwamagagasi.

2. Kufanele kushintshwe kangaki ama-SPD?

Njalo eminyakeni emi-3-5 ezindaweni ezigcwele amanzi amaningi noma ngokushesha ngemva kokubonisa ukwehluleka.

3. Ingabe i-SPD eyodwa ingavikela isakhiwo sonke?

Cha. Ukuvikelwa kwamazinga amaningi kuyadingeka ukuze kuvikelwe ngokugcwele.

4. Ingabe ama-DC SPD ayadingeka ezinhlelweni ze-PV?

Yebo. Zivikela izintambo ze-PV ezinde ekuchayweni umbani.

5. Yiziphi izitifiketi okufanele ngizihlole?

I-IEC61643, UL1449, CE, RoHS, kanye nemibiko yokuhlola.

6. Ingabe ama-SPD angavimbela ngokuphelele umonakalo wombani?

Cha, kodwa zinciphisa kakhulu amandla afinyelela imishini.