Ingabe Udinga Isivikelo Sokukhuphuka?

Ngisakhumbula iphunga lepulasitiki elishile lapho i-inverter yeklayenti ithosiwe ngo-2019. Leso sikhwelo esisodwa samlahlekisela u-28 000 USD kanye nesikhathi sokungasebenzi amasonto ayisithupha.

Yebo, udinga i- isivikelo sokwanda.Ukushaya kombani okukodwa noma iphutha legridi kungathumela izinkulungwane zama-volts ezintanjeni zakho. I-SPD idla leso sipike ngaphambi kokuba sifike ku-inverter yakho, imitha, noma ibhethri. Ngiyibonile isindisa uphahla lwelanga lonke.

Awukaqiniseki? Qhubeka ufunda. Ngizokukhombisa umonakalo wangempela, izinombolo zangempela, kanye nemininingwane eqondile esiyisebenzisayo lapho sithumela eBerlin noma eMilan.

Kwenzekani Ngaphandle Komvikeli Wokukhuphuka?

Ngavula indawo ebiyelwe ngensimbi futhi i-PCB yayibukeka njenge-black toast. Ikhasimende lalicabanga ukuthi umshwalense uzokhokha. Awuzange ukhokhe.

Ngaphandle kwe-SPD, i-over-voltage ingena ngqo ku-inverter yakho.I-DC link capacitor iyaqhuma, ama-IGBT afushane, bese yonke intambo iyama. I-spike eyodwa engu-1 500 V ingasula i-inverter yezentengiselwano engu-50 000 USD ngemizuzwana engu-0.2.

Ukuhlaziywa Kwezindleko Zangempela

I-DamagePoint	Izindleko Ezijwayelekile (i-USD)	Isikhathi esiholayo	Izindleko Ezifihliwe
I-inverter engu-100 kW	28,000	Amaviki angu-8–12	I-FIT elahlekile
Ibhethri elingu-20 kWh	14,000	Amaviki ayi-6	Faka kabusha
Ukulahlekelwa komkhiqizo	4,200 / ngesonto	–	Izigaba zesijeziso

Kungani Umqhekezi Engazange Akhubeke

Ama-breaker asabela kuphela ku-over-current, hhayi ku-over-voltage. I-spike ingaba ngu-2 000 V kodwa ibe ngu-3 A kuphela, ngakho-ke i-breaker iyamomotheka futhi ihlale ivaliwe. Yingakho udinga idivayisi ebheka i-voltage, hhayi i-current. I-SPD yenza lokho kanye: ifinyeza ama-volts engeziwe emhlabeni bese iqala kabusha.

Izinganekwane Ezintathu Engizizwa Njalo Ngeviki

1. "Amaphaneli ami aphansi."

Ukubeka phansi kunciphisa i-touch voltage, kodwa akuvimbi i-spike.

2. "Asikaze sithole umbani lapha."

Ukushintsha igridi, amabhange e-capacitor, ngisho nama-lifti motors enza ama-spikes nsuku zonke.

3. "I-inverter inesivikelo esakhelwe ngaphakathi."

Ama-MOV amaningi asefektri alingana no-40 J. Ukushaya okuqondile kuthwala u-50 000 J. Izibalo ziyadabukisa.

Icala elivela eHamburg, Mashi 2023

Uphahla oluyi-2 MW lwalungenayo i-SPD yangaphandle. Ukushaya okude kwabangela i-1 200 V entanjeni ye-DC. I-inverter yafa, kodwa okubi nakakhulu, i-arc yaphula uphahla lwe-polymer. Amanzi angena, futhi inkampani yomshuwalense yasola “ukuntuleka kokugcinwa.” Inkokhelo: zero. Kamuva iklayenti lathenga ama-120 e-1 000 V DC SPD ethu ukuze kwakhiwe kabusha.

Inkinga Yokushisa Efihliwe

Onjiniyela abaningi bayakhohlwa ukuthi i-SPD ihlala ebhokisini elincane le-IP65 usuku lonke. Ilanga lipheka insimbi ku-70 °C. Ngaphakathi, idiski ye-MOV isebenza ngokushisa nakakhulu. Amadiski ashibhile aqala ukuvuza ugesi ku-85 °C. Uma ukuvuza kuqala, ukushisa kuyakhuphuka, ugesi uyakhuphuka, bese idiski iyaqhekeka. Ifektri yethu inezela isixhumanisi sokushisa esidonsa i-SPD ingaxhunyiwe ku-inthanethi ku-120 °C. Iyunithi iyahluleka iphephile, ayifushane, futhi isayithi lakho liyaqhubeka nokusebenza.

Ukulahlekelwa yisignali uma kuqhathaniswa nengozi yomlilo

Abanye abathengi babheka kuphela izinga lokuvikela i-voltage. Ngibheka nokuphepha komlilo. Ngo-2021 i-warehouse eNetherlands yasha ngoba i-SPD engabizwa ngegama yasha ngemuva kokuba i-MOV yehlulekile. Umshwalense wenqaba ukukhokha ngoba i-SPD yayingenalo uhlu lwe-UL 1449 4th Ed. Sihlola yonke inqwaba kokubili i-IEC ne-UL ukuze ukwazi ukulala ebusuku.

Indlela Yokukhetha Isivikelo Sokukhuphuka Esifanele Semisebenzi Yelanga

Ngonyaka odlule umthengi wangithumelela i-RFQ enamakhasi angu-20. Umugqa wokuqala wawuthi: “I-SPD eshibhile kakhulu, ama-pcs ayi-1 000.” Ngiyisusile i-imeyili.

Qondanisa i-SPD ne-voltage yesistimu yakho, i-short-circuit current, kanye nezinga lengozi.Qala nge-IEC 61643-31. Khetha i-Uc engu-20% ngaphezu kwe-voltage yakho ye-open-circuit. Bese uhlola i-Imax: 40 kA yophahla, i-100 kA yokusetshenziswa. Ngihlala ngifaka i-remote contact ukuze ithimba le-SCADA libone uhambo.

Ithebula Lokukhetha Okusheshayo

Uhlobo Lwesistimu	I-Uc(VDC)	I-Imax(kA)	Ikilasi	Isignali Ekude
Uphahla lwe-600 V	720	40	II	Yebo
Intambo engu-1 000 V	1 200	60	II+III	Yebo
Umbuso we-V ongu-1 500	1 800	100	I+II	Yebo

Indlela Yesinyathelo Ngesinyathelo

1. Bhala phansi iZwi ngosuku olubanda kakhulu.

Ukubanda kwandisa i-voltage ngamaphesenti afinyelela ku-15%.

2. Engeza umkhawulo wokuphepha ongu-20%.

Lokho kunikeza i-Uc yakho.

3. Bala ubude bomqhubi we-down-conductor.

Uma ubude bungaphezu kwamamitha ayi-10, engeza i-SPD yesibili ohlangothini lwe-inverter.

4. Hlola i-fuse.

I-SPD kumele ibe ne-fuse ehlanzayo ngaphambi kokuba ikhebula lincibilike. Sisebenzisa i-gPV 15 A ku-4 mm².

5. Umbiko wokuhlolwa kwesidingo.

Cela i-IEC 61643-11 kanye ne-UL 1449 Uhlelo lwesi-4. ku-PDF efanayo. Akukho mbiko, akukho sivumelwano.

Imininingwane Efihliwe: Ukugijima Okushisayo

Amabhulokhi e-MOV ashibhile aqala ukuvuza ku-85 °C. Ngaphakathi kwebhokisi elimnyama le-IP65 ophahleni lwaseSpain, lokho kwenzeka njalo ehlobo. Amabhulokhi ethu asebenzisa ukuxhumeka kokushisa okuqhekeka ku-120 °C. I-SPD yehluleka ngokuphephile, hhayi ngokufushane.

Iphutha Lobude Bokuhola

Ngibona abafaki besebenzisa ama-lead angu-30 cm andizayo ngoba ashesha kakhulu. Lokho kunezela ama-V angu-300 ku-voltage evumela ukuthi idlule. Umthetho wethu: gcina ama-lead angaphansi kuka-15 cm esewonke, noma uwaphendule ukuze ukhansele i-inductance. Iklayenti elilodwa linqume ama-lead kusukela ku-25 cm kuya ku-10 cm futhi libone i-Up yehla kusukela ku-1.6 kV kuya ku-1.1 kV. I-inverter yakhe yasinda esiphephweni esilandelayo.

Ukuxhumanisa ne-AC Side

Ungakhohlwa uhlangothi lwe-AC. Ngemva kokuba i-inverter iphendukele ku-400 V AC, usadinga i-SPD. Sibeka amayunithi e-Class II 275 V AC ebhodini eliyinhloko. Kumasayithi ane-transformers, sengeza i-Class I 25 kA 10/350 µs ohlangothini lwe-LV. Ukushaya okukodwa emgqeni we-MV kusengahamba phansi.

Kungani Ama-EPC Aphezulu Esebenzisa Imiklamo ye-Hybrid SPD

Ngivakashele i-EPC eyishumi ephezulu eMilan. Unjiniyela wabo waguqula i-SPD wathi: “Angifuni isobho se-MOV esitshalweni sami.”

Ama-SPD e-Hybrid ajoyina ipayipi legesi elisheshayo eline-MOV eqinile. Ipayipi likaphethiloli lithatha u-90% wokuqala wokushaya, ngakho i-MOV ihlala ipholile. Umphumela: isikhathi sokuphila siphindwe kathathu, i-voltage evumela ukudlula yehla ngo-30%. Yingakho ama-Tier-1 EPC manje ebhala ukuthi “i-hybrid kuphela” ku-BoQ yawo.

Ngaphakathi kwebhokisi le-Hybrid

Isiteji	Isici	Umsebenzi	Impilo (iziteleka)
1	Isibambi segesi		200
2	I-MOV	Izinsalela ze-clamp	150
3	I-fuse yokushisa	Ukuphepha komlilo	Uhambo olu-1

Kungani Kubalulekile Ku-O&M

Iloli ngalinye libiza u-1 200 USD. Uma i-SPD ihlala iminyaka engu-15 esikhundleni se-5, wonga amaloli amathathu. Kuphothifoliyo engu-100 MW engu-360 000 USD. I-12 USD eyengeziwe oyikhokhela i-hybrid iwumsindo.

I-Spec I See ngo-2024 RFQs

- Ukukhishwa okujwayelekile ku: 20 kA

- Ukukhishwa okuphezulu kakhulu Isilinganiselo: 100 kA

- Izinga lokuvikela i-voltage Liphezulu:

- Ukuxhumana okukude: okomile 250 V 1 A

- Izinga lokushisa lokusebenza: –40 °C kuya ku-+85 °C

- Isitifiketi: IEC, UL, TÜV, CE, RoHS

Uma ifektri yakho ingakwazi ukuphawula wonke amabhokisi, awusekho.

I-Gas Tube vs. I-MOV Aging Curve

Sisebenzise isivivinyo se-20 kA 8/20 µs izikhathi ezingu-200. Iyunithi ye-MOV emsulwa ibone ukuphakama okungu-38% ngemuva kokudubula okungu-100. Iyunithi ye-hybrid ikhuphuke ngo-9% kuphela. Lokho kusho ukuthi i-inverter ibona ukucindezeleka okuncane okungu-400 V. Eminyakeni engaphezu kwengu-20, lowo umehluko phakathi kokuphila kwe-inverter yeminyaka eyi-12 kanye nokushintshana kweminyaka engu-6.

Icebiso Lesisindo

I-40 kA hybrid SPD inesisindo esingu-0.8 kg ngoba ipayipi legesi lengeza ithusi kanye ne-ceramic. Iyunithi ye-MOV engu-40 kA kuphela inesisindo esingu-0.4 kg. Uma isampula izwakala ilula, yivule. Ungase uthole ingxenye yamadiski e-MOV ingekho.

Kusukela Embonini Kuya Ensimini: Yini Eyenza Umhlinzeki Othembekile we-SPD?

Ngake ngahlola indawo yokusebenzela eyayinamathelisa ama-MOV nge-epoxy. Ngonyaka olandelayo amabhlogo awela ngesikhathi sokuthunyelwa. Salahlekelwa amayunithi angu-800 olwandle.

Umhlinzeki we-SPD othembekile ungumnikazi we-full chain: isitolo sensimbi, umshini wokunyathelisa amadiski we-MOV, i-TIG weld, i-burn-in, kanye ne-100% test.Cela ishidi le-QC. Kumelwe libonise i-In kanye ne-Imax kuwo wonke amayunithi, hhayi isampula yeqoqo. Isitshalo sami eWenzhou sigcina leyo datha iminyaka eyi-10.

Uhlu Lokuhlola Engilunika Abathengi Besitayela SikaJeff

Into	Engikukhombisayo	Ifulegi Elibomvu
Usayizi wefektri	2 000 m², ISO 9001
Ilebhu yokuhlola	8/20 µs, 10/350 µs	8/20 kuphela
Ukulandelela	Ikhodi yochungechunge + ye-QR	Isitika kuphela
Iwaranti	Iminyaka emi-5 egcwele	Unyaka owodwa ngokwe-rata
Isitoko	Ama-pcs angu-10k alungile	I-MOQ 500, izinsuku ezingama-60

Umkhawulo Wezokuthutha

Siphethe izimpahla eziboshiwe eHamburg. Isitsha sakho singasuka eWenzhou namuhla bese sikhipha izimpahla eBremerhaven kusasa. Akukho VAT uze ukhiphe izimpahla. Lokho kunciphisa umjikelezo wakho wemali ngezinsuku ezingu-21.

Inkokhelo Ekusebenzelayo

Sinciphisa ngo-30%, u-70% uma kuqhathaniswa nekhophi ye-BL. Uma ikhredithi yakho ingu->500 k USD/ngonyaka, singeza izinsuku ezingu-90 ze-OA nge-Sinosure. Uthola i-float oyidingayo, ngithola i-oda.

Icebiso Lokuhlola

Uma uvakashela ifektri, cela ukubona ukuhlolwa kwe-MOV okuzayo. Kufanele bahlole i-100% yamadiski ukuthola i-voltage yokubhekisela ku-1 mA. Uma behlola i-5% kuphela, hamba. Senqaba i-3% yayo yonke into; yingakho izinga lethu lokubuyisa iminyaka emihlanu lingu-0.2%.

Ikhithi Yangemva Kokuthengisa

Ibhokisi ngalinye lithunyelwa ngekhodi ye-QR. Liskene bese ubona umbiko wokuhlola, umdwebo wocingo, kanye nevidiyo yokufaka yemizuzwana engu-45. Ithimba lethu liphinde labelane ngefayela le-DXF lokubhoboza isitimela se-DIN. Imininingwane emincane ikusindisa ihora elilodwa endaweni.

Inqubomgomo Yezingxenye Ezisele

Sigcina u-2% wokuthunyelwa ngakunye njengezinto zamahhala eHamburg. Uma iyunithi eyodwa ihamba, sithumela enye esikhundleni sayo zingakapheli amahora angu-48. Awulindi isitsha esilandelayo.

Isiphetho

I-SPD engu-30 USD ingonga i-inverter engu-50 000 USD. Khetha ikilasi elifanele, funa ubuchwepheshe obuhlanganisiwe, bese uhlola ifektri. Ngithumelele i-imeyili namuhla, ngizothumela amasampula kusasa.