Koj puas xav tau lub tshuab tiv thaiv hluav taws xob?
Kuv tseem nco qab tsw ntawm cov yas hlawv thaum tus neeg siv khoom lub inverter kib hauv xyoo 2019. Qhov nce siab ntawd ua rau nws raug nqi 28 000 USD thiab rau lub lis piam ntawm kev tsis ua haujlwm.
Yog, koj xav tau ib qho tiv thaiv hluav taws xob.Ib qho xob laim lossis qhov teeb meem ntawm lub grid tuaj yeem xa ntau txhiab volts mus rau hauv koj cov cables. Ib qho zoo SPD noj qhov nce ntawd ua ntej nws mus txog koj lub inverter, meter, lossis roj teeb. Kuv tau pom nws cawm tag nrho cov ru tsev hnub ci.
Tseem tsis paub meej? Nyeem ntxiv. Kuv yuav qhia koj txog kev puas tsuaj tiag tiag, cov lej tiag tiag, thiab cov lus qhia tseeb uas peb siv thaum peb xa khoom mus rau Berlin lossis Milan.
Yuav ua li cas yog tias tsis muaj Surge Protector?
Kuv qhib lub thawv hlau thiab lub PCB zoo li cov mov dub. Tus neeg siv khoom xav tias kev pov hwm yuav them. Nws tsis tau them.
Yog tsis muaj SPD, overvoltage nce ncaj qha mus rau hauv koj lub inverter.Lub DC link capacitor tawg, IGBTs luv luv, thiab tag nrho cov hlua nres. Ib qho 1 500 V spike tuaj yeem rhuav tshem lub inverter lag luam 50 000 USD hauv 0.2 vib nas this.
Kev Piav Qhia Txog Tus Nqi Tiag Tiag
| DamagePoint | Tus nqi ib txwm (USD) | Lub Sijhawm Ua Ntej | Tus Nqi Zais Cia |
| 100 kW lub tshuab hluav taws xob hloov pauv | 28,000 | 8–12 lub lis piam | Poob FIT |
| Lub roj teeb 20 kWh | 14,000 | 6 lub lis piam | Rov nruab dua |
| Kev poob ntau lawm | 4,200 / lub lim tiam | – | Cov kab lus nplua |
Vim li cas lub Breaker tsis tau mus ncig
Cov breakers tsuas yog teb rau over-current, tsis yog over-voltage. Lub spike tuaj yeem yog 2 000 V tab sis tsuas yog 3 A, yog li ntawd lub breaker luag nyav thiab nyob kaw. Yog vim li cas koj xav tau lub cuab yeej uas saib voltage, tsis yog tam sim no. Lub SPD ua raws li qhov ntawd: nws short cov volts ntxiv rau hauv av thiab tom qab ntawd rov pib dua.
Peb Zaj Dab Neeg Uas Kuv Hnov Txhua Lub Limtiam
- "Kuv cov vaj huam sib luag tau grounded."
Kev sib txuas av ua rau lub zog kov qis dua, tab sis nws tsis clamp lub spike.
- "Peb yeej tsis tau xob laim ntawm no."
Kev hloov pauv ntawm lub grid, cov capacitor banks, thiab txawm tias cov motors of elevator ua rau muaj kev nce siab txhua hnub.
- Lub inverter muaj kev tiv thaiv ua ke.
Feem ntau cov MOVs Hoobkas yog qhov loj me rau 40 J. Kev ntaus ncaj qha nqa 50 000 J. Kev suav lej tu siab heev.
Cov ntaub ntawv los ntawm Hamburg, Lub Peb Hlis 2023
Lub ru tsev 2 MW tsis muaj SPD sab nraud. Ib qho kev tawm tsam deb ua rau muaj 1 200 V ntawm txoj hlua DC. Lub inverter tuag, tab sis qhov phem dua, lub arc tawg lub ru tsev polymer. Dej nkag mus, thiab lub tuam txhab pov hwm liam tias "tsis muaj kev saib xyuas." Kev them nyiaj: xoom. Tus neeg siv khoom tom qab ntawd yuav 120 ntawm peb 1 000 V DC SPDs rau kev tsim kho dua tshiab.
Qhov Teeb Meem Kub Zais Cia
Muaj ntau tus engineers tsis nco qab tias SPD zaum hauv lub thawv me me IP65 txhua hnub. Lub hnub ua kom cov hlau kub txog 70 ° C. Sab hauv, lub MOV disk khiav kub dua. Cov disks pheej yig pib xau tam sim no ntawm 85 ° C. Thaum pib xau, cua sov nce, tam sim no nce, thiab lub disk tawg. Peb lub Hoobkas ntxiv lub thermal snap-link uas rub SPD tawm ntawm 120 ° C. Lub tshuab ua haujlwm tsis zoo, tsis luv luv, thiab koj qhov chaw ua haujlwm tas li.
Kev Poob Teeb Liab piv rau Kev Pheej Hmoo Hluav Taws
Qee tus neeg yuav khoom tsuas saib qib kev tiv thaiv hluav taws xob xwb. Kuv kuj saib kev nyab xeeb hluav taws. Xyoo 2021, ib lub tsev rau khoom hauv Netherlands tau kub hnyiab vim tias SPD tsis muaj npe tau kub hnyiab tom qab MOV ua tsis tau luv luv. Lub tuam txhab pov hwm tsis kam them vim tias SPD tsis muaj UL 1449 4th Ed. daim ntawv teev npe. Peb sim txhua pawg rau ob qho tib si IEC thiab UL kom koj tuaj yeem pw tsaug zog hmo ntuj.
Yuav Ua Li Cas Xaiv Tus Tiv Thaiv Surge Rau Cov Haujlwm Hnub Ci
Xyoo tas los tus neeg yuav khoom tau xa kuv daim ntawv RFQ 20-nplooj ntawv. Kab ib hais tias: "SPD pheej yig tshaj plaws, 1 000 daim." Kuv tau rho tawm email.
Txuas lub SPD rau koj lub zog hluav taws xob, tam sim no luv luv, thiab qib kev pheej hmoo.Pib nrog IEC 61643-31. Xaiv Uc 20% saum koj lub qhov hluav taws xob qhib. Tom qab ntawd xyuas Imax: 40 kA rau cov ru tsev, 100 kA rau qhov ntsuas hluav taws xob. Kuv ib txwm ntxiv tus neeg tiv tauj chaw taws teeb kom pab pawg SCADA pom qhov kev mus ncig.
Rooj Xaiv Sai
| Hom System | Uc (VDC) | Imax (kA) | Chav Kawm | Lub Cim Qhia Chaw Nyob Deb |
| 600 V ru tsev | 720 | 40 | II | Yog |
| 1000V txoj hlua | 1 200 | 60 | II+III | Yog |
| 1 500 V hluav taws xob | 1 800 | 100 | Kuv + II | Yog |
Txoj Kev Ua Kauj Ruam Ib Kauj Ruam
- Sau Voc thaum hnub txias tshaj plaws.
Txias ua rau lub zog nce mus txog 15%.
- Ntxiv 20% kev nyab xeeb ntxiv.
Qhov ntawd muab koj Uc.
- Suav qhov ntev ntawm tus neeg coj.
Yog tias ntev tshaj 10 m, ntxiv SPD thib ob ntawm sab inverter.
- Xyuas lub fuse.
Lub SPD yuav tsum muaj lub fuse uas tshem tawm ua ntej lub cable yaj. Peb siv gPV 15 A rau 4 mm².
- Daim ntawv qhia txog kev xeem xav tau.
Thov kom tau IEC 61643-11 thiab UL 1449 4th Ed. hauv tib daim PDF. Tsis muaj daim ntawv qhia, tsis muaj kev pom zoo.
Cov Lus Qhia Zais: Kev Khiav Tawm Kub
Cov MOV blocks pheej yig pib xau ntawm 85 °C. Sab hauv lub thawv dub IP65 ntawm lub ru tsev Spanish, qhov ntawd tshwm sim txhua lub caij ntuj sov. Peb cov blocks siv thermal disconnect uas snaps ntawm 120 °C. Lub SPD tsis ua haujlwm zoo, tsis luv.
Yuam Kev Ntev ntawm Cov Hlau
Kuv pom cov neeg teeb tsa siv cov xov hlau ya 30 cm vim nws sai dua. Qhov ntawd ntxiv 300 V rau qhov hluav taws xob cia-dhau. Peb txoj cai: khaws cov xov hlau kom tsawg dua 15 cm tag nrho, lossis ntswj lawv kom tshem tawm qhov inductance. Ib tus neeg siv khoom txiav cov xov hlau los ntawm 25 cm mus rau 10 cm thiab pom Up poob los ntawm 1.6 kV mus rau 1.1 kV. Nws lub inverter tau dim ntawm cua daj cua dub tom ntej.
Kev sib koom tes nrog AC Sab
Tsis txhob hnov qab sab AC. Tom qab lub inverter tig mus rau 400 V AC, koj tseem xav tau SPD. Peb muab Class II 275 V AC units tso rau ntawm lub main board. Rau cov chaw uas muaj transformers, peb ntxiv Class I 25 kA 10/350 µs rau sab LV. Ib qho strike ntawm kab MV tseem tuaj yeem mus rau hauv qab.
Vim li cas EPCs Sab Saum Toj Siv Cov Qauv Hybrid SPD
Kuv tau mus xyuas ib lub tuam txhab EPC zoo tshaj plaws hauv Milan. Lawv tus engineer tig lub SPD thiab hais tias: "Kuv tsis xav kom muaj kua zaub MOV hauv kuv lub Hoobkas."
Hybrid SPDs koom nrog lub raj xa roj ceev nrog MOV muaj zogLub raj xa roj siv thawj 90% ntawm qhov tawm tsam, yog li MOV tseem txias. Qhov tshwm sim: lub neej ntev dua peb npaug, qhov hluav taws xob cia-dhau poob 30%. Yog vim li ntawd Tier-1 EPCs tam sim no sau "hybrid xwb" hauv lawv cov BoQ.
Sab Hauv Lub Thawv Sib Xyaws
| Theem | Khoom | Txoj Haujlwm | Lub Neej (strikes) |
| 1 | Cov khoom siv roj |
| 200 |
| 2 | MOV | Cov clamps seem | 150 |
| 3 | Lub tshuab cua sov | Kev nyab xeeb hluav taws | 1 qhov kev mus ncig |
Vim Li Cas Nws Thiaj Tseem Ceeb Rau O&M
Txhua lub tsheb thauj khoom raug nqi 1 200 USD. Yog tias SPD kav ntev li 15 xyoos es tsis yog 5 xyoos, koj txuag tau peb lub yob. Ntawm 100 MW portfolio uas yog 360 000 USD. Qhov ntxiv 12 USD koj them rau hybrid yog suab nrov.
Cov Lus Qhia Tshwj Xeeb Kuv Pom hauv 2024 RFQs
- Nominal tso tawm Hauv: 20 kA
- Qhov tso tawm siab tshaj plaws Imax: 100 kA
- Qib tiv thaiv hluav taws xob nce mus txog:
- Kev sib cuag deb: qhuav 250 V 1 A
- Kev ua haujlwm kub: -40 ° C txog +85 ° C
- Daim ntawv pov thawj: IEC, UL, TÜV, CE, RoHS
Yog tias koj lub Hoobkas tsis tuaj yeem kos txhua lub thawv, koj tawm lawm.
Cov Raj Roj vs. MOV Aging Curve
Peb tau khiav qhov kev sim 20 kA 8/20 µs 200 zaug. Lub chav MOV ntshiab pom nce 38% tom qab 100 txhaj tshuaj. Lub chav hybrid tsuas yog nce 9%. Qhov delta ntawd txhais tau tias lub inverter pom 400 V kev ntxhov siab tsawg dua. Tshaj 20 xyoo, qhov ntawd yog qhov sib txawv ntawm lub neej inverter 12-xyoo thiab kev hloov pauv 6-xyoo.
Cov Lus Qhia Txog Qhov Hnyav
Ib lub 40 kA hybrid SPD hnyav 0.8 kg vim tias lub raj roj ntxiv tooj liab thiab ceramic. Ib lub 40 kA MOV-only unit hnyav 0.4 kg. Yog tias cov qauv zoo li sib dua, qhib nws. Tej zaum koj yuav pom ib nrab ntawm cov MOV disks ploj lawm.
Los ntawm Lub Hoobkas mus rau Thaj Chaw: Dab Tsi Ua Rau Tus Neeg Muab Khoom SPD Txhim Khu Kev?
Kuv tau mus tshuaj xyuas ib lub chaw ua haujlwm uas muab cov MOVs lo rau nrog epoxy. Xyoo tom qab cov blocks poob thaum lub sijhawm xa khoom. Peb poob 800 units thaum caij nkoj.
Ib tus neeg muag khoom SPD txhim khu kev qha muaj tag nrho cov saw hlau: khw muag hlau, MOV disc press, TIG weld, hlawv-hauv, thiab 100% kev xeem.Thov daim ntawv QC. Nws yuav tsum qhia In thiab Imax rau txhua chav tsev, tsis yog cov qauv ua pawg. Kuv lub Hoobkas hauv Wenzhou khaws cov ntaub ntawv ntawd tau 10 xyoo.
Daim Ntawv Teev Npe Kuv Muab Rau Cov Neeg Yuav Khoom Jeff-Style
| Khoom | Kuv Qhia Dab Tsi | Chij Liab |
| Qhov loj ntawm lub Hoobkas | 2 000 m², ISO 9001 |
|
| Chaw kuaj mob | 8/20 µs, 10/350 µs | Tsuas yog 8/20 xwb |
| Kev taug qab tau | Tus lej Serial + QR | Tsuas yog daim ntawv nplaum xwb |
| Kev Pov Hwm | 5 xyoos puv ntoob | 1 xyoos raws li tus nqi |
| Tshuag | 10 k pcs npaj txhij | MOQ 500, 60 hnub |
Kev Lag Luam Logistics
Peb muaj cov khoom lag luam bonded hauv Hamburg. Koj lub thawv tuaj yeem tawm hauv Wenzhou hnub no thiab hla kev lis kev cai hauv Bremerhaven tag kis. Tsis muaj VAT kom txog thaum koj rub cov khoom. Qhov ntawd txiav koj lub voj voog nyiaj ntsuab los ntawm 21 hnub.
Kev Them Nyiaj Uas Ua Haujlwm Rau Koj
Peb txo 30% ua ntej, 70% tawm tsam daim ntawv theej BL. Yog tias koj qhov credit yog> 500 k USD / xyoo, peb ntxiv 90 hnub OA los ntawm Sinosure. Koj tau txais lub float koj xav tau, kuv tau txais qhov kev txiav txim.
Cov Lus Qhia Txog Kev Tshuaj Xyuas
Thaum koj mus xyuas lub hoobkas, thov kom pom qhov kev tshuaj xyuas MOV uas tuaj txog. Lawv yuav tsum sim 100% ntawm cov disks rau qhov voltage siv ntawm 1 mA. Yog tias lawv sim tsuas yog 5%, taug kev mus. Peb tsis lees txais 3% ntawm txhua qhov ntau; yog vim li cas peb tus nqi rov qab tsib xyoos yog 0.2%.
Cov Khoom Siv Tom Qab Muag Khoom
Txhua lub thawv xa nrog QR code. Luam theej nws thiab koj pom daim ntawv qhia kev sim, daim duab qhia txog kev txuas hluav taws xob, thiab cov yeeb yaj kiab teeb tsa 45-thib ob. Peb pab neeg kuj tseem qhia cov ntaub ntawv DXF rau kev khawb DIN rail. Cov ntsiab lus me me yuav pab koj txuag tau ib teev ntawm qhov chaw.
Txoj Cai Khoom Siv
Peb khaws 2% ntawm txhua qhov khoom xa tuaj ua cov khoom seem pub dawb hauv Hamburg. Yog tias muaj ib lub khoom puas lawm, peb yuav xa ib lub tshiab tuaj rau koj hauv 48 teev. Koj tsis tas tos lub thawv tom ntej.
Xaus lus
Ib lub SPD 30 USD tuaj yeem txuag tau 50 000 USD inverter. Xaiv hom zoo, thov kom siv hybrid tech, thiab kuaj xyuas lub Hoobkas. Email rau kuv hnub no, kuv yuav xa cov qauv tag kis.