Ngaba Ufuna Umkhuseli Wokugqabhuka?

Ndisakhumbula ivumba leplastiki etshileyo xa i-inverter yomthengi yaqhotswa ngo-2019. Elo qhushumbo linye lambangela ukuba atye i-28 000 USD kunye neeveki ezintandathu zokungasebenzi.

Ewe, uyayidinga umkhuseli wokuxhathisa.Ukubetha kombane kube kanye okanye impazamo yegridi kunokuthumela amawaka ee-volts kwiintambo zakho. I-SPD Itya loo spike ngaphambi kokuba ifikelele kwi-inverter yakho, imitha, okanye ibhetri. Ndiyibonile isindisa uphahla lwelanga lonke.

Awukaqiniseki? Qhubeka ufunda. Ndiza kukubonisa umonakalo wokwenyani, amanani okwenyani, kunye neenkcukacha esizisebenzisayo xa sithumela eBerlin okanye eMilan.

Kwenzeka ntoni ngaphandle koMkhuseli woKhuthazo?

Ndivule i-enclosure yesinyithi kwaye i-PCB yayifana ne-black toast. Umthengi wayecinga ukuba i-inshorensi iza kuhlawula. Ayizange ihlawule.

Ngaphandle kwe-SPD, i-over-voltage inyuka ngqo kwi-inverter yakho.I-DC link capacitor iyaqhuma, ii-IGBTs zimfutshane, kwaye yonke intambo iyayeka. I-spike enye ye-1 500 V ingacima i-inverter yorhwebo ye-50 000 USD ngemizuzwana eyi-0.2.

Uhlalutyo lweendleko zokwenyani

I-DamagePoint	Ixabiso eliqhelekileyo (i-USD)	Ixesha lokukhokhela	Ixabiso Elifihliweyo
I-inverter eyi-100 kW	28,000	Iiveki ezi-8–12	I-Fit elahlekileyo
Ibhetri ye-20 kWh	14,000	Iiveki ezi-6	Faka kwakhona
Ukulahleka kwemveliso	4,200 / ngeveki	–	Izigaba zesohlwayo

Kutheni i-Breaker ingazange ikhubeke

Ii-breakers zisabela kuphela kwi-over-current, hayi kwi-over-voltage. I-spike ingaba yi-2 000 V kodwa ibe yi-3 A kuphela, ngoko i-breaker iyancuma ize ihlale ivaliwe. Yiyo loo nto udinga isixhobo esijonga i-voltage, kungekhona i-current. I-SPD yenza kanye loo nto: inciphisa ii-volts ezongezelelweyo emhlabeni ize iqalise kwakhona.

Iintsomi Ezintathu Endizivayo Iveki Ngeveki

1. "Iipaneli zam ziphantsi komhlaba."

Ukumisa umhlaba kunciphisa i-touch voltage, kodwa akubambeleli i-spike.

2. "Asikaze sifumane umbane apha."

Ukutshintsha igridi, ii-capacitor banks, kwanee-elevator motors zenza ii-spikes yonke imihla.

3. "I-inverter inokhuselo olwakhelwe ngaphakathi."

Uninzi lweeMOV zasefektri zilingana ne-40 J. Umphumo othe ngqo uthwala i-50 000 J. Izibalo ziyadanisa.

Ityala elivela eHamburg, ngoMatshi 2023

Uphahla lwe-2 MW lwalungenalo i-SPD yangaphandle. Ukubetha okukude kwabangela i-1 200 V kwintambo ye-DC. I-inverter yafa, kodwa okubi ngakumbi, i-arc yaqhekeza uphahla lwe-polymer. Amanzi angena, kwaye inkampani yeinshorensi yathi “akukho kulungiswa.” Intlawulo: zero. Umthengi kamva wathenga ii-120 ze-1 000 V DC SPDs zethu ukuze ziphinde zakhiwe.

Ingxaki Yobushushu Efihliweyo

Iinjineli ezininzi ziyalibala ukuba i-SPD ihlala kwibhokisi encinci ye-IP65 imini yonke. Ilanga lipheka isinyithi ukuya kuma-70 °C. Ngaphakathi, idiski ye-MOV isebenza ngobushushu obungaphezulu. Iidiski ezingabizi ziqala ukuvuza umbane kwi-85 °C. Nje ukuba ukuvuza kuqale, ubushushu buyanda, umbane uyanda, kwaye idiski iyaqhekeka. Umzi-mveliso wethu wongeza ikhonkco lobushushu elitsala i-SPD ngaphandle kwe-intanethi kwi-120 °C. Iyunithi iyasilela ngokukhuselekileyo, ayifutshane, kwaye indawo yakho iyaqhubeka nokusebenza.

Ukulahleka kweSignali xa kuthelekiswa noMngcipheko woMlilo

Abanye abathengi bajonga kuphela inqanaba lokhuseleko lwe-voltage. Ndikwajonga nokhuseleko lomlilo. Ngo-2021 indawo yokugcina impahla eNetherlands yatsha ngenxa yokuba i-SPD engaziwayo yatsha emva kokuba i-MOV ingasebenzi kakuhle. Umshwalense wala ukuhlawula kuba i-SPD yayingenalo uluhlu lwe-UL 1449 4th Ed. Sivavanya yonke ibhetshi kwi-IEC nakwi-UL ukuze ukwazi ukulala ebusuku.

Indlela yokukhetha uMkhuseli oLungileyo wokunyuka kweeProjekthi zeLanga

Kunyaka ophelileyo umthengi undithumelele i-RFQ enamaphepha angama-20. Umgca wokuqala wawusithi: “I-SPD engabizi kakhulu, yi-1 000 pcs.” Ndiyicimile i-imeyile.

Tshatisa i-SPD ne-voltage yenkqubo yakho, umsinga we-short-circuit, kunye nenqanaba lomngcipheko.Qala nge-IEC 61643-31. Khetha i-Uc 20% engaphezulu kwe-voltage yakho ye-open-circuit. Emva koko jonga i-Imax: 40 kA kwiiphahla, i-100 kA kwi-utility-scale. Ndisoloko ndongeza i-remote contact ukuze iqela le-SCADA libone uhambo.

Itheyibhile yokukhetha ngokukhawuleza

Uhlobo lweNkqubo	I-Uc(VDC)	Imax(kA)	Iklasi	ISignal ekude
Uphahla lwe-600 V	720	40	II	Ewe
Umtya we-V oyi-1 000	1 200	60	II+III	Ewe
Isixhobo sombane se-1 500 V	1 800	100	I+II	Ewe

Indlela yeNyathelo ngeNyathelo

1. Bhala phantsi iVoc ngosuku olubanda kakhulu.

Ukubanda kunyusa i-voltage ukuya kuthi ga kwi-15%.

2. Yongeza umlinganiselo wokhuseleko we-20%.

Oko kunika i-Uc yakho.

3. Bala ubude be-conductor ezantsi.

Ukuba ubude bayo bungaphezulu kwe-10 m, yongeza i-SPD yesibini kwicala le-inverter.

4. Jonga ifusi.

I-SPD kufuneka ibe ne-fuse ephumayo ngaphambi kokuba intambo inyibilike. Sisebenzisa i-gPV 15 A kwi-4 mm².

5. Ingxelo yovavanyo lwemfuno.

Cela i-IEC 61643-11 kunye ne-UL 1449 4th Edition. kwiPDF efanayo. Akukho ngxelo, akukho sivumelwano.

Iinkcukacha Ezifihliweyo: Ukubaleka Kobushushu

Iibhloko zeMOV ezingabizi ziqala ukuvuza kwi-85 °C. Ngaphakathi kwibhokisi emnyama ye-IP65 eluphahleni lwaseSpain, oko kwenzeka rhoqo ehlotyeni. Iibhloko zethu zisebenzisa uqhagamshelo lobushushu oluqhawuka kwi-120 °C. I-SPD iyasilela ngokukhuselekileyo, ayifutshane.

Impazamo yobude beLead

Ndibona abafaki bezixhobo besebenzisa iileyiti ezibhabhayo ezingama-30 cm kuba zikhawuleza. Oko kongeza i-300 V kwi-voltage evumela umbane ukuba ungene. Umthetho wethu: gcina iileyiti zingaphantsi kwe-15 cm iyonke, okanye uzijike ukuze urhoxise i-inductance. Omnye umthengi usika iileyiti ukusuka kwi-25 cm ukuya kwi-10 cm waza wabona i-Up ihla ukusuka kwi-1.6 kV ukuya kwi-1.1 kV. I-inverter yakhe yasinda kwisaqhwithi esilandelayo.

Ulungelelwaniso neCandelo le-AC

Ungalibali icala le-AC. Emva kokuba i-inverter ijike iye kwi-400 V AC, usadinga i-SPD. Sibeka iiyunithi ze-Class II 275 V AC ebhodini eliphambili. Kwiindawo ezinee-transformers, songeza i-Class I 25 kA 10/350 µs kwicala le-LV. Ukubetha kube kanye kumgca we-MV kusenokuhamba phantsi.

Kutheni ii-EPC eziphezulu zisebenzisa uyilo lwe-Hybrid SPD

Ndityelele i-EPC ekwi-10 ephezulu eMilan. Injineli yabo yajika i-SPD yaza yathi: “Andifuni soup ye-MOV kwisityalo sam.”

Ii-SPD zeHybrid zijoyina ityhubhu yegesi ekhawulezayo ene-MOV enamandla. Ityhubhu yegesi ithatha i-90% yokuqala yokubetha, ngoko ke i-MOV ihlala ipholile. Isiphumo: ubomi buphindaphindeka kathathu, i-voltage ye-let-through yehla ngama-30%. Yiyo loo nto ii-Tier-1 EPCs ngoku zibhala "i-hybrid kuphela" kwi-BoQ yazo.

Ngaphakathi kweBhokisi yeHybrid

Iqonga	I-elementi	Umsebenzi	Ubomi (ukubetha)
1	Isithinteli segesi		200
2	I-MOV	Iiklimpu ezishiyekileyo	150
3	I-fuse yobushushu	Ukhuseleko lomlilo	Uhambo olu-1

Kutheni Kubalulekile kwi-O&M

Iroli nganye ixabisa i-1 200 USD. Ukuba i-SPD ihlala iminyaka eli-15 endaweni ye-5, wonga iiroli ezintathu. Kwipotifoliyo ye-100 MW eyi-360 000 USD. I-12 USD eyongezelelweyo oyihlawulayo kwi-hybrid yingxolo.

I-Spec I See kwi-2024 RFQs

- Ukukhupha okuqhelekileyo kwi: 20 kA

- Ukukhupha okuphezulu Ubungakanani: 100 kA

- Inqanaba lokukhusela iVoltha Iphezulu:

- Unxibelelwano olukude: owomileyo 250 V 1 A

- Ubushushu bokusebenza: –40 °C ukuya ku-+85 °C

Isatifikethi: IEC, UL, TÜV, CE, RoHS

Ukuba umzi-mveliso wakho awukwazi ukuphawula zonke iibhokisi, awukho.

Ityhubhu yegesi kunye ne-MOV Ageing Curve

Siqhube uvavanyo lwe-20 kA 8/20 µs izihlandlo ezingama-200. Iyunithi ye-MOV ecocekileyo ibone ukunyuka kwe-Up nge-38% emva kweeshothi ezili-100. Iyunithi ye-hybrid inyuke nge-9% kuphela. Oko kuthetha ukuba i-inverter ibona uxinzelelo oluncinci lwe-400 V. Kwiminyaka engama-20, lowo ngumahluko phakathi kobomi be-inverter yeminyaka eli-12 kunye notshintsho lweminyaka emi-6.

Icebiso lobunzima

I-40 kA hybrid SPD inobunzima obuyi-0.8 kg kuba ityhubhu yegesi yongeza ubhedu kunye neseramikhi. Iyunithi ye-MOV engama-40 kA kuphela inobunzima obuyi-0.4 kg. Ukuba isampuli ivakala ilula, yivule. Ungafumana isiqingatha seediski ze-MOV zingekho.

Ukusuka kwiFektri ukuya kwiSithili: Yintoni Eyenza Umthengisi we-SPD Othembekileyo?

Ndakha ndahlola indawo yokusebenzela eyayincamathisela ii-MOV nge-epoxy. Kunyaka olandelayo iibhloko zawa ngexesha lokuthunyelwa. Salahlekelwa ziiyunithi ezingama-800 elwandle.

Umthengisi we-SPD othembekileyo ungumnikazi wecandelo elipheleleyo: ivenkile yesinyithi, i-MOV disc press, i-TIG weld, i-burn-in, kunye ne-100% test.Cela iphepha le-QC. Kufuneka libonise i-In kunye ne-Imax kwiyunithi nganye, kungekhona isampuli yebhetshi. Isityalo sam eWenzhou sigcina loo datha kangangeminyaka eli-10.

Uluhlu lokujonga endilunika abathengi beJeff-Style

Into	Oko Ndikubonisayo	Iflegi ebomvu
Ubungakanani befektri	2 000 m², ISO 9001
Ilebhu yovavanyo	8/20 µs, 10/350 µs	8/20 kuphela
Ukulandeleka	Ikhowudi ye-serial + QR	Isitikha kuphela
Iwaranti	Iminyaka emi-5 epheleleyo	Unyaka omnye ngokwe-rata
Isitokhwe	Iipcs ezili-10k zilungile	I-MOQ 500, iintsuku ezingama-60

Umda weLogistics

Sinempahla ebondiweyo eHamburg. Isikhongozeli sakho singaphuma eWenzhou namhlanje size sigqibe irhafu eBremerhaven ngomso. Akukho VAT de ukhuphe iimpahla. Oko kunciphisa umjikelo wakho wemali ngeentsuku ezingama-21.

Intlawulo Ekusebenzelayo

Sithatha i-30% yehle, i-70% xa ithelekiswa ne-BL copy. Ukuba ikhredithi yakho ingaphezulu kwe-500 k USD ngonyaka, songeza i-OA yeentsuku ezingama-90 ngeSinosure. Ufumana i-float oyifunayo, ndifumana iodolo.

Ingcebiso yoHlolo-zincwadi

Xa undwendwela ifektri, cela ukubona i-MOV engenayo yokuhlolwa. Bafanele bavavanye i-100% yeediski ukuze babone i-voltage yereferensi kwi-1 mA. Ukuba bavavanya i-5% kuphela, hamba. Siyala i-3% yayo yonke into; yiyo loo nto izinga lethu lokubuyisela iminyaka emihlanu liyi-0.2%.

Ikhithi Yasemva Kokuthengisa

Ibhokisi nganye ithunyelwa nekhowudi ye-QR. Yiskena uze ubone ingxelo yovavanyo, umzobo wocingo, kunye nevidiyo yokufaka yemizuzwana engama-45. Iqela lethu likwabelana ngefayile ye-DXF yokubhola umzila we-DIN. Iinkcukacha ezincinci zikongela iyure enye kwindawo.

Umgaqo-nkqubo weCandelo leeNkonzo eziNgezelelweyo

Sigcina i-2% yokuthunyelwa ngakunye njengezinto zasimahla eHamburg. Ukuba iyunithi enye iyahamba, sithumela enye endaweni yayo zingadlulanga iiyure ezingama-48. Awulindi isitya esilandelayo.

Isiphelo

I-SPD ye-30 USD inokonga i-inverter ye-50 000 USD. Khetha udidi olufanelekileyo, funa i-hybrid tech, kwaye uhlole umzi-mveliso. Ndithumelele i-imeyile namhlanje, ndiza kuthumela iisampulu ngomso.