How to Select and Install Control Protection Switch Correctly for Different Scenarios

Intshayelelo

Kwiinkqubo zokusasazwa kwamandla aphantsi, ukuthelekisa izinto zokhuseleko ezifanelekileyo linyathelo lokuqala lokuthintela ukungasebenzi kakuhle kombane kunye neengozi zokhuseleko.Utshintsho loKhuseleko loLawulo, eyaziwa ngokuba yi-CPS kushishino, sisixhobo sombane esisebenza ngeendlela ezininzi esidibanisa ulawulo, ukhuseleko lokugqithisa kunye nokuchongwa kweempazamo kwiyunithi enye. Ngokungafaniyo neendlela zemveli ezisebenzisa ii-contactors ezahlukeneyo kunye nee-circuit breakers, i-CPS yenza kube lula ukufakelwa kweentambo kwaye inciphisa iindawo zokusilela kwiiluphu zokusasazwa kwamandla. Ukukhetha imodeli engahambelaniyo okanye iikona zokusika ngexesha lofakelo kudla ngokukhokelela ekukhubekeni rhoqo, umonakalo wezixhobo kunye neengozi zokutshayiswa kombane, ngoko ke ukukhetha kunye nokufakela okusemgangathweni akunakuxoxiswana ngako kuzo zonke iimeko zokusetyenziswa. Eli nqaku lishwankathela iindlela ezisebenzayo, eziqinisekisiweyo zokukhetha nokufaka i-CPS, ngokubhekiselele kwimigangatho esemthethweni yoshishino ukuqinisekisa ukusebenza kunye nokuthobela.

1. Imigaqo yoKhetho oluPhambili lweeMfuno zoMthwalo woMbane

Umthetho wokuqala wokusebenzisa i-CPS ngokuchanekileyo kukufanisaUtshintsho loKhuseleko loLawulokuhlobo lomthwalo wokwenyani kunye nendawo yokusebenza. Kwimithwalo eqhelekileyo yokumelana nombane efana nokukhanya kwangaphakathi kunye nezifudumezi zombane, iimodeli zeCPS eziqhelekileyo ezinemisebenzi yokhuseleko olusisiseko zanele; kwimithwalo yokungenisa efana neemoto zasefektri, iilifti kunye neempompo zamanzi, khetha iimodeli ezinokumelana nokunyuka okukhulu kunye nokunyamezelana kwesekethe emfutshane ukuze ziphathe umbane ophezulu ekuqaleni. Iiparameter eziphambili kufuneka zijongwe ngononophelo: umbane olinganisiweyo, ivolthi yokusebenza, amandla okuphuka kunye nenqanaba lokhuseleko lwe-IP zonke kufuneka zihambelane noqwalaselo lokwenyani losasazo lwamandla.

Kwimithwalo ebalulekileyo efana noomatshini bokuxhasa ubomi bezonyango kunye nezixhobo zombane zegumbi ledatha, khetha iimodeli zeCPS ezithembeke kakhulu nezizinzileyo. Zonke iimveliso ezifanelekileyo kufuneka zihlangabezane nemigangatho yombane ye-IEC 60947-6-2 kunye ne-GB 14048.9 ephantsi, eyimfuneko ukuqinisekisa umgangatho wemveliso kunye nokhuseleko kwindawo (IKomiti yokuMiselwa kweZixhobo zoMbane eziPhantsi kweVoliti, 2024).

2. Iinkqubo zoFakelo oluQhelekileyo kunye neMithetho yoKhuseleko

Ngaphambi kokufaka, yenza umsebenzi wokulungiselela osisiseko: jonga i-CPS ukuba ayonakalanga na iqokobhe, iiterminal ezikhululekileyo okanye iindawo ezingekhoyo, lungisa izixhobo zombane zobungcali, kwaye ucime onke amandla kwisekethe ukuze uthintele ukubetheka kombane. Lungisa isixhobo kwipleyiti eqinileyo, ethe tyaba yokusifaka, usigcine kude nemithombo enamandla yokungcangcazela, kwaye usifake iingcingo ngokungqongqo ngokweelebheli zeterminal kunye nolandelelwano lwesigaba - iingcingo ezibuyela umva kunye noqhagamshelo olukhululekileyo azivumelekanga ngokungqongqo.

Zigqume ngokupheleleyo zonke iindawo zokuxhuma iingcingo, kwaye uphelise iingozi ze-short-circuit ngaphambi kokuba ubuyisele umbane. Indawo yokufaka kufuneka yome kwaye ingabi naluthuli, ibe nobushushu obuphakathi kwe--5℃ kunye ne-40℃. I-CPS eqhelekileyo ayinakusetyenziswa kwiindawo ezimanzi, ezirhabaxa okanye eziqhumayo; kufuneka kusetyenziswe iimodeli ezikhethekileyo ezikhusela ukuqhuma okanye ezikhusela umswakama kwezi ndawo zinzima (iNational Electrical Engineering Installation Code, 2023).

3. Iindlela zokuHlanganisa eziSekelwe kwiMeko

Iimeko ezahlukeneyo zifuna uqwalaselo lwe-CPS olujolise ngqo. Iindawo zokusebenzela zoshishino kunye nemigca yemveliso zifuna i-CPS enzima enomthamo ophezulu wokuqhekeza, efanelekileyo ukuqala rhoqo kweemoto kunye nokusebenza ixesha elide. Izakhiwo zorhwebo ezifana nezakhiwo zeeofisi kunye neevenkile ezinkulu zingasebenzisa iimodeli ze-CPS ezincinci, ezigcina indawo kwaye zihlangabezana neemfuno zokhuseleko lwee-lifti, izibane ezingxamisekileyo kunye ne-air conditioning ephakathi. Ukusetyenziswa ekhaya, iimodeli ze-CPS ezincinci nezilula zingcono, zigxile ekukhuseleni ukuvuza kunye nokugqithisa ukuze kuqinisekiswe ukhuseleko lombane lwemihla ngemihla.

Iindawo ezinobungozi ezifana nezityalo zeekhemikhali, iigaraji ezingaphantsi komhlaba kunye nemigodi zifuna i-CPS evaliweyo, engangeni kumswakama kwaye engaqhumiyo ukuze ikwazi ukumelana neemeko zokusebenza ezimbi.

4. Uvavanyo Emva Kokufakelwa kunye Nokugcinwa Kwemihla Ngemihla

Emva kokufakela, qala ngokwenza uvavanyo lokungalayishi ukuze ujonge ukusebenza kweswitshi kunye nezibane zesikhombisi, uze wenze uvavanyo lomthwalo phantsi kwamandla alinganiselweyo ukuqinisekisa ukusebenza okuzinzileyo. Ulondolozo lwemihla ngemihla lulula: jonga ukuba akukho zintambo zikhululekile, ubushushu obugqithisileyo kunye nengxolo engaqhelekanga rhoqo emva kweenyanga ezintathu, kwaye wenze uvavanyo olupheleleyo lomsebenzi kanye ngonyaka. Gcina iirekhodi zolondolozo ukuze ulandelele imeko yesixhobo kwaye ulungise iingxaki ezifihlakeleyo ngexesha.

5. Iimpazamo eziqhelekileyo zoFakelo kunye nokusombulula iingxaki

Uninzi lweempazamo ze-CPS zibangelwa kukufakelwa okungafanelekanga: ukufakelwa kwentambo ngasemva, useto olungalunganga lweeparameter kunye nendawo embi yokufakela zezona ngxaki zixhaphakileyo, nto leyo ekhokelela ekusileleni kokutshintsha okanye ukukhubeka okungachanekanga rhoqo. Iimpazamo eziqhelekileyo ziquka isenzo esingaphenduliyo, ukukhubeka kokhuseleko rhoqo kunye nokubhuza okungaqhelekanga. Xa ulungisa ingxaki, jonga intambo kuqala, uze uqinisekise iiparameter, kwaye uhlole iindawo zangaphakathi ukuba kuyimfuneko; zonke izilungiso kufuneka zenziwe ngoosombane abaqinisekisiweyo. Iimpazamo ezininzi zinokuthintelwa ngokulandela imithetho yokufakela ngokungqongqo.

Isiphelo

Ukukhetha ngokuchanekileyo kunye nokufakelaUtshintsho loKhuseleko loLawulozisisiseko sokusebenza ngokukhuselekileyo nangokuzinzileyo kwiinkqubo zokusasazwa kwamandla aphantsi, ezifuna ukuqwalaselwa ngokupheleleyo kweempawu zomthwalo, iimeko zokusetyenziswa kunye nokuthobela imithetho eqhelekileyo. Ukulandela amanyathelo amiselweyo okukhetha, ukufakela kunye nokugcina izixhobo kunokwandisa ubomi bezixhobo, kunciphise ukusilela kwaye kuphelise iingozi zombane. Kwiimeko zamandla zoshishino kunye nezoluntu, ezi zikhokelo zisebenzayo zibalulekile ekusebenzeni kwamandla ngokukhuselekileyo nangokufanelekileyo.

Iireferensi

1. I-IEC 60947-6-2 kunye ne-GB 14048.9, IKomiti yoKumisa iMigangatho yeZixhobo zoMbane eziPhantsi kweVolthi, 2024

2. Iinkcukacha zoFakelo kunye noLwakhiwo loBunjineli boMbane beSizwe, 2023

FAQ

Q: Ngaba i-CPS eqhelekileyo ingafakwa kwigumbi elingaphantsi okanye kwigumbi lokuhlambela elifumileyo?A: Hayi, i-CPS eqhelekileyo ayinayo i-CPS enokuxhathisa ukufuma okanye ukungenwa ngamanzi. Sebenzisa i-CPS ekhethekileyo enokuxhathisa ukufuma okanye ukuqhushumba kwiindawo ezifumileyo, ezirhabaxa nezinomswakama ophezulu.
Q: Ungawufumanisa njani umlinganiselo wamandla we-CPS?A: Kwimithwalo eqhelekileyo, khetha umbane olinganisiweyo ophindwe ka-1.1-1.2 kunombane osebenzayo olinganisiweyo; yongeza umda we-20%-30% kwiimoto kunye nemithwalo yokungenisa ukuze uthwale ukunyuka okukhulu kwemisebenzi.
Q: Ndingafaka i-CPS ngaphandle kwesatifikethi sombane?A: Hayi, ukufakwa kwe-CPS kubandakanya ukufakelwa kweengcingo zobungcali kunye nokusebenza ngqo, kufuneka kuzaliswe ziingcali zombane eziqinisekisiweyo ukuze kuthintelwe iingozi zokhuseleko.
Q: I-CPS kufuneka ihlolwe kangaphi?A: Ukuhlolwa okubonakalayo rhoqo emva kweenyanga ezi-3, uvavanyo olupheleleyo lomsebenzi kunye nokusebenza kanye ngonyaka ukuqinisekisa ukusebenza okuzinzileyo.

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