Kungani Amadivayisi Okuvikela Ohlobo Lwesibili Ephakamisa Ukuphepha Kwezimboni

Ngivame ukubona amafektri ebhekene nokwehluleka kwemishini okungazelelwe, futhi ngiyazi ukuthi kuzwakala kucindezeleka kangakanani lapho ukukhiqiza kuyeka ngenxa yezinsongo zikagesi ezingabonakali.
Amadivayisi Okuvikela Ukukhuphuka Kohlobo 2 aphakamisa ukuphepha kwezimboni ngokunciphisa ama-overvoltage ayingozi asheshayo ngaphakathi kwezinhlelo zamandla zefektri. Amunca futhi aqondise kabusha ama-surge abangelwa ukushintshana kwemisebenzi, umbani oseduze, kanye nezimo zegridi ezingazinzile. Lokhu kuvikela imishini, kunciphisa isikhathi sokungasebenzi, futhi kugcina imisebenzi yezimboni izinzile futhi ingabikezelwa.
Manje ake ngikuchazele ukuthi la madivayisi asebenza kanjani nokuthi kungani ebalulekile kunoma iyiphi ifektri efuna ukuzinza kwesikhathi eside.

Kanjani Amadivayisi Okuvikela Ohlobo 2 Vikela Imishini Yefektri

Ngibone imishini iphela ngenxa yokukhuphuka kwamandla kagesi amancane, futhi ngafunda ngendlela enzima ukuthi kubaluleke kangakanani Idivayisi Evikelayo Yokukhuphuka ikunoma yiluphi uhlelo lwezimboni.
Amadivayisi Okuvikela Ukukhuphuka Kohlobo 2 avikela imishini yasefektri ngokubopha ukukhuphuka kwangaphakathi okwenzeka emabhodini okusabalalisa. Ahlala ngemuva kwe-breaker eyinhloko futhi amunca ukukhuphuka kwezinga eliphakathi okuvela ekushintsheni kwegridi, ama-motor, kanye nombani ongaqondile. Lokhu kuvimbela umonakalo wokushisa, ukwehluleka kwebhodi lokulawula, kanye nokuvalwa okungalindelekile.

Indlela Ama-SPD Ohlobo 2 Asebenza Ngayo Ngaphakathi Kwemboni

Uma ngichazela abaphathi bezimpahla nge-SPD, ngihlala ngikwenza kube lula. I-Type 2 SPD yenzelwe ukuvikela ingaphakathi lesakhiwo, hhayi ukushaya kombani wangaphandle uqobo. Isebenza ngezingxenye ze-MOV (metal oxide varistor) ezishintsha ukumelana ngokushesha lapho i-voltage ishaya.

Imithombo Ejwayelekile Yokwanda Kwamafektri

Nazi imithombo evamile kakhulu yokukhuphuka kwegesi engiyibonayo ezindaweni zezimboni:

Kungani Amathimba Okuthenga Kufanele Akhathalele

Ngikhuluma nabathengi abanjengoJeff ngaso sonke isikhathi, futhi into eyodwa icacile: ukwehluleka okungalindelekile kubiza kakhulu kunokuvikelwa okubikezelwayo. Idivayisi Evikelayo Ekhuphukayo inciphisa izindleko zokulungisa, ivikela ama-elekthronikhi abucayi, futhi yandisa impilo yesistimu. Ngisho nokuvala okukodwa okugwenyiwe kuvame ukukhokhela lonke uhlelo lokuvikela.

Indlela Ama-SPD Ohlobo 2 Asekela Ngayo Ukuzinza Okubanzi Kwefektri

Uhlelo lwezimboni oluzinzile luncike ezingqimbeni ezintathu zokuvikela ukukhuphuka, kanti uhlobo 2 luphakathi nendawo. Ngaphandle kwalo, ungqimba lokuqala (Uhlobo 1) ludlula amandla amaningi kakhulu phansi. Ngalo, amandla afakwa kahle ukuze imishini iqhubeke nokusebenza ngaphandle kokuphazamiseka.

Izinzuzo Eziyinhloko Zama-SPD Ohlobo 2 Ezinhlelweni Zamandla Ezimboni

Bengicabanga ukuthi ukuvikela ukukhuphuka kwamandla kagesi “kuyinto enhle ukuba nayo,” kwaze kwaba yilapho ngibona ukuthi ukukhuphuka kwamandla kagesi okuncane kungawuqeda kanjani wonke umugqa wokukhiqiza.
Ama-SPD ohlobo lwesibili anikeza ukucindezela okunamandla kwezinga eliphakathi nendawo, isikhathi sokuphendula okusheshayo, kanye nokuvikelwa okuthembekile kuwo wonke amabhodi okusabalalisa, okwenza abaluleke kakhulu ezinhlelweni zamandla ezimboni ezizinzile.

Izinzuzo Eziyinhloko Ongathembela Kuzo

Nazi izinzuzo engizigqamisa njalo kuqala:

Kungani Isivinini Sibalulekile Ekuvikelweni Kokukhuphuka

Emafektri amaningi engiwavakashele, ukwehluleka okubizayo kwenzeka ezinhlelweni zokulawula ezenzakalelayo. Ama-SPD ohlobo lwesibili asabela ngamasekhondi amancane, avikela amabhodi abucayi ngaphambi kokuba ukuqhuma kufike kuwo.

Indima Yokuvikelwa Okubikezelwayo

UJeff, njengabaphathi abaningi bokuthenga, uyayazisa insizakalo ebikezelayo kanye nokusebenza okubikezelayo. I-SPD yezimboni esezingeni eliphezulu iqinisekisa ukucindezelwa okuqhubekayo kokwanda kwegesi kuyo yonke indawo, kunciphisa izindleko zesikhathi eside zobunikazi.

Izinto Okufanele Uzicabangele Ngezengeziwe Kubathengi Bezimboni

I-Type 2 SPD enhle kufanele ifake izixhumi zokushisa, izinkomba ezibonakalayo, kanye namamojula angashintshwa. Ngihlala ngincoma ukukhetha imikhiqizo ehlolwe ngokwezindinganiso ze-IEC/EN 61643 ngoba le mikhiqizo iphila ezimweni ezinzima zezimboni futhi inikeza ukusebenza okubhaliwe.

Lapho Kusetshenziswa Amadivayisi Okuvikela Ohlobo Lwesibili Emafektri

Ngisakhumbula ukuhlolwa kwami ​​kokuqala kwemboni eZhejiang lapho ngabona khona ama-SPD efakwa cishe yonke indawo ngaphandle kwalapho ayebaluleke kakhulu khona.
Amadivayisi Okuvikela Ohlobo 2 asetshenziswa kumabhodi okusabalalisa amakhulu, amaphaneli amancane, amakhabethe okulawula, imigqa yokuzenzakalela, izinhlelo ze-HVAC, kanye nanoma yisiphi isikhungo sokulayisha lapho ama-elekthronikhi abucayi encike emandleni ahlanzekile nazinzile.

Amacala Okusetshenziswa Okuvamile Ezindaweni Zezimboni

Imigqa Yokuzenzakalela Incike Emandleni Ahlanzekile

Ngisebenza namaqembu athembele kakhulu ku-PLC, VFD, kanye namarobhothi. Lezi zinhlelo ziyahluleka kalula ngisho noma zikhuphuka kancane. I-Type 2 SPD iyayivimba le nkinga ngaphambi kokuba ibangele ukungasebenzi okungalindelekile.

Ukuvikelwa Kuzo Zonke Izindawo Ezihlukene

Amafektri ngokuvamile anezindawo ezintathu zamandla: ezingenayo, ezisatshalaliswayo, kanye nezinga lomshini. Ama-SPD ohlobo lwesibili angena kahle endaweni yokusabalalisa lapho kwenzeka khona ukukhuphuka kwangaphakathi okuningi ngenxa yokushintsha kwemithwalo.

Kungani Kubalulekile Kubaphathi Bokuthenga

Abathengi abaqonda izindawo ezifanele zokufaka bakhetha imikhiqizo esebenza kangcono futhi bagwema ukushintshwa okungadingekile. Lokhu kusekela ngqo ukubambisana kwesikhathi eside futhi kunciphisa izikhalazo ezivela konjiniyela bezitshalo.

Amathiphu Okufaka Ama-SPD Ohlobo 2 Ezindaweni Zezimboni

Ngesikhathi ngiqala ukuhlola ukufakwa kwe-SPD, ngashaqeka ukuthi zingaki izinkinga ezibangelwe amaphutha entambo.
Ukufaka ama-SPD ohlobo lwesibili ngendlela efanele kudinga ubude obufushane bekhebula, usayizi ofanele we-breaker, isisekelo esifanele, kanye nokubekwa eduze kwe-distribution busbar ukuqinisekisa ukucindezelwa okusheshayo nokuphumelelayo kokuphakama.

Izimiso Eziyinhloko Zokufaka Engizilandela Njalo

Ubude Bekhebula Budala Noma Buphula Ukuvikelwa

Izintambo ezinde zinciphisa ukusebenza kahle kwe-SPD. Ngihlala ngiqinisekisa ukuthi ukusebenza kwezintambo kufushane futhi kuqondile. Lokhu kuvimbela ukukhuphuka “ekugxumeleni” emishinini ngaphambi kokuba i-SPD isabele.

Ukukhetha i-Breaker Efanele

Ama-SPD kumele ahambisane nedivayisi yokuvikela edlula ugesi efanele. Izimboni eziningi zisebenzisa ama-breaker akhubeka sekwephuzile noma kusenesikhathi. Ngiyeluleka ukusebenzisa ama-MCB noma ama-fuse alingana kahle nesilinganiso se-short-circuit se-SPD.

Kungani Ikhwalithi Yomhlaba Ibalulekile

Idivayisi Evikela Ukukhuphuka ingaqondisa amandla kuphela uma ukumisa kuthembekile. Ukumisa okungekuhle kuphoqa ukukhuphuka ukuthi kubuyele emishinini. Ngihlala ngihlola ukumelana nokumisa ngaphambi kokusebenzisa okokugcina.

Indlela Ama-SPD Ohlobo 2 Anciphisa Ngayo Isikhathi Sokuphumula Futhi Athuthukise Ukukhiqiza

Ngibukele izimboni zilahlekelwa izinkulungwane zamaRandi ngehora ngoba i-PLC eyodwa yehlulekile ngenxa yokwanda okukhulu.
Amadivayisi Okuvikela Ukukhuphuka Kohlobo 2 anciphisa isikhathi sokungasebenzi ngokuvimbela ukwehluleka okubangelwa ukukhuphuka kwezinjini, amadrayivu, imigqa yokuzenzakalela, kanye namabhodi okulawula abucayi. Lokhu kugcina ukukhiqizwa kuqhubeka futhi kunciphisa ukuphazamiseka kokugcinwa.

Indlela ama-SPD ohlobo lwesibili asekela ngayo ukukhiqizwa okuphezulu

Ukuvikela Imishini Enenani Eliphezulu

Uma i-VFD noma i-PLC yehluleka, konke okuya phansi kuyama. I-Type 2 SPD ivikela lezi zingxenye eziyinhloko ekulimaleni ama-transients alimaza izifunda zangaphakathi buthule.

Umthelela Wesikhathi Eside Ezinhlelweni Zokunakekela

Ukuvikelwa okubikezelwayo kuholela ekunakekelweni okubikezelwayo. Ngivame ukubona amafektri enciphisa isikhathi sokungasebenzi esingahleliwe ngaphezu kuka-30% ngemuva kokusebenzisa ukuvikelwa okufanele kokukhuphuka kwegesi.

Kungani Abathengi Kufanele Bamukele Ama-SPD

Abaphathi bokuthengwa kwempahla ababheka ngale kwentengo yamayunithi futhi bagxile ekuthembekeni bavame ukuthola i-TCO ephansi phakathi nomjikelezo wokuphila komkhiqizo. Idivayisi Evikelayo Yokwanda iwutshalomali oluncane oluvimbela ukulahlekelwa okukhulu.

Isiphetho

Amadivayisi Okuvikela Ukukhuphuka Kohlobo 2 adala izinhlelo zamandla ezimboni ezizinzile nezibikezelwayo—ngakho qala ukuvikela ifektri yakho namuhla ngesivikelo sokukhuphuka esithembekile.

Imibuzo Evame Ukubuzwa

1. Kungani amafektri edinga ama-Surge Protective Devices ezingeni lokusabalalisa?

Amafektri akhiqiza ukukhuphuka okuningi kwangaphakathi okuvela kuma-motor nama-drive ashintshanayo. Ama-SPD ezingeni lokusabalalisa amunca lokhu kukhuphuka ngaphambi kokuba alimaze imishini.

2. Ingabe i-SPD yohlobo lwesibili ingayithatha indawo ye-SPD yohlobo lwe-1?

Cha. Uhlobo 1 luvikela imisinga yombani yangaphandle, kanti Uhlobo 2 luvikela amabhodi okusabalalisa angaphakathi. Womabili ayadingeka ukuze kuvikelwe ngokugcwele.

3. I-SPD yohlobo lwesibili ihlala isikhathi esingakanani?

Ama-SPD amaningi ezimboni ahlala iminyaka engu-3-8 kuye ngokuthi ukuchayeka kwawo kuyanda kangakanani. Amayunithi asezingeni eliphezulu anezixhumi zokushisa ze-MOV ahlala isikhathi eside.

4. Ingabe ama-SPD adinga ukulungiswa?

Yebo. Izinkomba ezibonakalayo, ama-fuse okusekelayo, kanye nesimo semojuli kufanele kuhlolwe ngesikhathi sokuhlolwa kukagesi okuvamile.

5. Ngikhetha kanjani isilinganiso se-SPD esifanele?

Kufanele ufanise i-SPD's nominal discharge current (In) kanye ne-maximum discharge current (Imax) nesigaba sebhodi lokusabalalisa sokuchayeka kokukhuphuka kanye nesistimu.