Maitiro Ekugadzira Saizi Yakakodzera Yezvishandiso Zvinodzivirira?
Maitiro Ekukura Zvakanaka Zvishandiso Zvinodzivirira Kuwedzera?
Ndakakangwa rack ye $20,000 PLC nekuti ndakasarudza zvisiri izvo SPD.
Ndinotarisa saizi yeSPD yega yega nekuenzanisa Uc yayo nemagetsi esystem, Imax yayo ne surge yakaipa kwazvo, uye Up kusvika pakakwirira kwemidziyo; ndobva ndatarisa nhamba nhatu dziri patafura imwe chete.
Ramba uchiverenga uye ndichakuratidza tafura kuti usadzokorora chikanganiso changu.
Sei Zvakakodzera SPD Kukura kwehukuru kwakakosha here?
Ndakarasikirwa nezuva rese rekugadzira apo 40 kA SPD yakaputika mudutu re100 kA.
Kana SPD iri diki zvakanyanya inotsva; kana yakakura zvakanyanya unobhadhara zvakawandisa; saizi chaiyo inoita kuti nhamba dzevashandi dzirambe dziripo uye mugadziri weakaunti adzikame.
Mutengo Chaiwo weSPD Dzisina Kukura
MaSPD asina kukura haangokundikani chete; anokundikana zvine simba.
Ndakaona imwe ichiputika ndokutumira purasitiki yakanyungudutswa pabhazi.
Chigadzirwa chacho chakamira kwemaawa gumi nemana tichichinjana jira rese.
Bhiri chairo raive $18,000 muzvinhu zvakarasika, kwete $200 SPD.
Mutengo Wakavanzika weSPDs Dzakakura
MaSPD akakura zvikuru anoita seakachengeteka, asi anodhura zvakanyanya pakutanga uye anobvumira simba rakawanda kupfuura.
Chishandiso che 200 kA pa 20 kA service chine UP yakakwira.
Iyo 200 V yakawedzerwa inogona kuuraya 1,200 V PLC input.
Unobhadhara kaviri: kamwe chete pabhokisi guru, kamwe chete pakadhi rakakangwa.
Maitiro Andinoyera "Saizi Yakakodzera" muMibvunzo Mitatu
- Ndeipi kukwirira kukuru kunogona kusvika pano?
- Mhepo yangu inogona kuramba iri pamagetsi akaita sei?
- Ndeapi manhamba eSPD data sheet anofukidza ese ari maviri?
Kana ndikakwanisa kupindura izvi zvitatu, saizi yacho yakarurama.
Tsanangudzo yeSPD inokosha: Uc, Imax, Iimp, uye Up
Ndaiwanzosanganisa Imax neIimp; rimwe zuva muongorori akatadza kushanda zvakanaka panhengo yangu.
Ndinosarudza mavolts eUc ≥ system, Imax ≥ local surge, Iimp ≥ lightning class, uye Up ≤ 80% yemidziyo inomira; ndinonyora nhamba ina mumutsara mumwe chete ndisati ndatenga.
Uc - Voltage iyo SPD Inogona Kugara Pairi Nekusingaperi
Uc ndiyo nhamba yemudzi.
Sarudza pasi zvakanyanya uye SPD inoshanduka kuita pfupi.
Sarudza yakakwira zvakanyanya uye dziviriro inokwira.
Ndinoshandisa Tafura 1 kuti ndienzanise voltage yesystem neUc shoma.
| SystemVoltage(LL) | MinimumUc |
| Chikamu chakapatsanurwa che120/240 V | 150V |
| 208 Y/120 V | 150V |
| 240 V delta | 255 V |
| 380 Y/220 V | 255 V |
| 480 Y/277 V | 320V |
Imax - Kuwedzera Kukuru Kunogona Kutorwa neSPD Kamwe Chete
Imax inhamba inongoerekana yaonekwa.
Ndinotarira mepu yehuwandu hwema flash emunharaunda.
Kana mepu ichiratidza kupenya kasere pa km², ndinopa 100 kA.
Kana mepu ichiratidza maflash mana, ndinopa 60 kA.
Handimbofi ndakasvika pasi pe40 kA kunyangwe munzvimbo ine njodzi shoma.
Iimp - Chitambi cheKirasi yeMheni
Imp inoedzwa ne10/350 µs wave.
Kirasi I inoda 25 kA padanda rimwe nerimwe.
Kirasi II inoda 12.5 kA.
Kana sevhisi yacho iine tsvimbo yemheni, ndinowedzera Kirasi I pamita.
Kumusoro - Voltage Yasara Yemutoro
PLC yangu iri kuona zviri kumusoro.
Ini ndinotora bhajeti shoma kupfuura dzimwe, asi ndinoichengeta iri pasi pe80% yehuwandu hwemuchina.
2,000 V PLC inowana SPD ine Up ≤ 1,600 V.
Kana tambo yacho yakareba ndinoisiya pa 1,200 V nekuti tambo yacho inowedzera 200 V yoga.
Nhanho-Nhanho Nhungamiro yeKuyera Chishandiso Chako Chinodzivirira Kukwira
Ndinoisa saizi yeSPD yega yega papepa rimwe chete reA4.
Ndinozadza mabhokisi mashanu: mavolts esystem, flash level, kureba kwetambo, load stand, uye budget; ndobva ndaverenga model code kubva mukoramu yekupedzisira yetafura yangu yekutsvaga.
Danho 1 - Nyora Pasi Voltage yeSisitimu uye Kugadziriswa
Ndinotanga nepepa remazita riri pa "main breaker".
Ndinonyora: 480 Y/277 V, ine zvikamu zvitatu, ine waya ina.
Izvozvo zvinondiudza kuti Uc ≥ 320 V kubva paTafura 1.
Danho rechipiri - Tsvaga Kuwanda kweFlash
Ndinovhura mepu yeNASA yemahara ndodzvanya pafekitori yangu.
Mepu yacho inoti kupenya kutanhatu pa km².
Ndiri kuenda kuTafura 2.
| Kuwanda kweFlash | Nhamba yeImax pamodhi imwe neimwe | Kirasi |
| 0–2 | 40 kA | II |
| 3–5 | 60 kA | II |
| 6–10 | 100 kA | Ini |
| >10 | 160 AD | Ini |
Ini ndinosarudza 100 kA neKirasi I.
Danho rechitatu - Yera Hurefu hweCable kubva paSevhisi kusvika paLoad
Ndinofamba nenzira yacho netepi.
Kana kumhanya kwacho kuri kure kupfuura 30 m ndinowedzera SPD yechipiri pane sub-panel.
Tambo refu dzinowedzera 10 V pamita imwe neimwe yesimba rinokonzereswa.
Danho rechina - Tarisa Kutsungirira Kwemidziyo
Ndinovhura bhuku rePLC.
Inoti "inogona kumira 1,500 V".
Ndinowanza ne 0.8 uye ndinoisa Up ≤ 1,200 V.
Danho rechishanu - Sarudza Modhi neMutengo
Ndinovhura bepa rangu remukati rinoratidzwa muTafura 3.
| Nhamba yeChikamu | Uc | Imax | Imp | Kumusoro | Mutengo1kpcs |
| LKX-480-40 | 320V | 40 kA | 12.5 kA | 1,400V | $18 |
| LKX-480-100 | 320V | 100 kA | 25 kA | 1,100V | madhora makumi maviri nemasere |
| LKX-480-160 | 320V | 160 kA | 50 kA | 900V | madhora makumi mana nemaviri |
Mutsetse wepakati unoenderana nebhokisi rega rega, saka ndinosarudza LKX-480-100.
Danho rechitanhatu - Isa Odha uye Maka Zuva
Ndinoisa zuva rekutumira zvinhu pakarenda yangu.
Ndakaisawo alarm yekuchinjana kwemakore mashanu nekuti kunyange maSPD akanaka akura.
Sarudzo yeSPD yeZvishandiso Zvakasiyana: Zvekugara, Zvekutengeserana, uye Zvemaindasitiri
Ndinogara muimba ine simba remagetsi re120 V, ndine chitoro chine simba remagetsi re480 V, uye ndine fekitori ine simba remagetsi re22 kV.
Ini ndinotora 20 kA Type 3 yefiriji yangu, 100 kA Type 1+2 yechitoro changu, uye 160 kA Type 1+2+3 yefekitori; mhando imwe chete, tafura imwe chete yekutarisa, mutsara wakasiyana.
Dzimba dzekugara - Chengetedza Zviri Nyore uye Zvisingadhuri
Dzimba dzinoona 40 kA surges zvakanyanya.
Ini ndinoshandisa imwe Type 2 papaneru uye imwe Type 3 paTV.
Mutengo wose uri pasi pemadhora makumi matanhatu.
Ndichiri kurara kana dutu rasvika.
Zvekutengeserana - Vhara Mutoro Wakasanganiswa
Kambani yekutengesa ine marambi, HVAC, uye vanoverenga makadhi.
Ndakaisa Type 1 pabasa, Type 2 pa sub-panel imwe neimwe, uye Type 3 paPOS.
Ndinoramba ndiri mhuri imwe chete yeUp saka mafungu anokura, kwete kurwa.
Maindasitiri - Verenga Zvisungo neMota
Mota dzinodzosa 1,500 V mumutsetse padzinodzima.
Ndinowedzera RC snubber pamwe neSPD ine 200 V margin paUp.
Ini ndinoshandisawo mayuniti eDIN-rail kuitira kuti ndigone kuachinjana aripo; nguva yekuzorora inodhura kupfuura chikamu chacho.
Nzvimbo Dzakakosha - Dzine Ngozi uye Dzinorapa
Munzvimbo dzinoputika dzeZone 2 ndinosarudza maSPD asina spark akavharirwa.
Muzvipatara ndinoshandisa mafirita emhando yekurapa ane mvura inodonha pasi ine
Tafura yakafanana; chivakashure chete ndicho chinochinja.
Mhedziso
Saizi yeSPD ine nhamba ina: Uc, Imax, Iimp, Up.
Vhura matafura, zadza mabhokisi, sarudza mutsetse, uye hauzombofi wakatenga bhokisi risiri iro zvakare.
Nditumirei zita repaneru yenyu uye ndichakutumirai tsamba yakakodzera mangwana.