I-MCCB 250A/400A/630A Selection Logic – Isifundo seTyala soMbane wabantu i-RDM5 Series

I-250A, i-400A kunye ne-630A zezona zilinganiso zintathu zisetyenziswa kakhulu kwi-MCCBs (ii-molded case circuit breakers) ekusasazweni kwamandla emizi-mveliso, ukusasazwa kwesakhiwo esikhulu kunye nokukhuselwa kwezixhobo.I-RDM5 series ene-high-breaking-capacity MCCBNjengomzekelo osebenzayo, eli nqaku lichaza indlela ecacileyo nesebenzayo yokukhetha ukunceda iinjineli kunye nabathengi ukuba bakhawuleze bachonge imodeli efanelekileyo.

Imigaqo yoKhetho oluPhambili

1.Umlinganiselo wangoku (ngaphakathi):Khetha ngokwenani elipheleleyo lomthwalo ophindaphindwe nge-1.25, uthelekise amandla ezixhobo okanye iisekethe.

2.Umthamo wokuqhekeza (Icu/Ics):Khetha ngokusekelwe kumbane we-short-circuit ukuqinisekisa ukuba ukhubeka ngokuthembekileyo phantsi kweemeko zempazamo.

3.Inani leepali:I-2P yeesekethe zesigaba esinye, i-3P yezixhobo zesigaba sesithathu, i-4P yeenkqubo zeengcingo ezine zesigaba sesithathu ezinokhuseleko olungathathi cala.

4.Uhlobo lokhuseleko:Ukhuseleko lokusasazwa okanye ukhuseleko lwemoto, oluhambelana neejika ezahlukeneyo zokukhubeka.

5.Izixhobo:Uhambo lwe-shunt, ukukhululwa kwe-undervoltage, oonxibelelwano abancedisayo okanye alarm banokongezwa ukuze kulawulwe kude kwaye kubuyekezwe imeko.

Iimeko zokusetyenziswa zeRDM5 Series 250A/400A/630A

I-RDM5-250 (Isakhelo se-250A)

● Umlinganiselo wamandla: 100–250A

● Umthamo wokuqhekeza (AC400V): Icu 35–50kA, Ics 25–35kA

● Ukusetyenziswa okuqhelekileyo: Ukusasazwa kwamasebe kwiifektri ezincinci neziphakathi, iimoto ezinezigaba ezintathu (iifeni, iipompo, iicompressor zomoya), izitishi ezincinci zebhokisi ye-PV

● Iingcebiso zokukhetha: Ukubaluleka kwe-3P/4P enokukhululwa kwe-thermal-magnetic; uhlobo lokukhusela i-motor kwimithwalo ye-motor, kunye noqhagamshelwano oluncedisayo/lwe-alamu olukhethiweyo.

I-RDM5-400 (Isakhelo se-400A)

● Umlinganiselo wamandla: 200–400A

● Umthamo wokuqhekeza (AC400V): Icu 50–70kA, Ics 35–50kA; Icu 20–25kA kwi-AC690V

● Izicelo eziqhelekileyo: Ukusasazwa okuphambili kwiindawo zokusebenzela, amaziko edatha aphakathi, iiswitshi eziphambili kwizakhiwo zorhwebo

● Iingcebiso zokukhetha: I-3P/4P ecetyiswayo enohlobo lwe-M (ukuphuka okuphakathi); uhlobo lwe-H oluqhekeza kakhulu kwiinkqubo ezinkulu, olunokukhululwa kwe-shunt/undervoltage yokukhusela kude kunye nokungakhuphi amandla.

I-RDM5-630 (Isakhelo se-630A)

● Umlinganiselo wamandla: 400–630A

● Umthamo wokuqhekeza (AC400V): Icu 50–100kA, Ics 50–75kA; Icu 20–35kA kwi-AC690V

● Usetyenziso oluqhelekileyo: Ukungena kwezixhobo ezinkulu, ukuphuma kwezikhululo ezingaphantsi kwamandla ombane aphantsi, iisekethe zokudibanisa iibhasi zoshishino

● Iingcebiso zokukhetha: Ukubaluleka kwe-3P/4P enomthamo ophezulu wohlobo lwe-H; izixhobo zokuncedisa/i-alamu ezibalulekileyo kwiisekethe ezibalulekileyo, ezifumaneka kwiinguqulelo ezisisigxina nezitsalwayo.

Isishwankathelo soKhetho oluKhawulezayo

● 250A: Imithwalo emincinci nephakathi / ukusasazwa kwesebe → RDM5-250

● 400A: Ukusasazwa okuphakathi kwesiseko esiphambili / iswitshi ephambili yesakhiwo → RDM5-400

● 630A: Iisekethe eziphambili ezingenayo/ezibalulekileyo ezinombane ophezulu → RDM5-630

Ukhetho olupheleleyo noluhambelanayo lunokwenziwa ngamanyathelo amathathu:umlinganiselo olinganayo wangoku → qinisekisa amandla okuqhekeza → khetha iipali kunye nezixhobo.