Kuyafana kwaye umahluko phakathi kweRing Main Unit kunye neMetal Clad xa kusetyenziswa

IYunithi eyiRing Main isetyenziswa kumbane wenethiwekhi yeringi ukudibanisa imithombo emibini yamandla okanye iinxalenye zekhabhinethi yeswitshi. Umsebenzi oyintloko kukwahlulahlula la macandelo mabini, ngomsebenzi omnye kunye nobukhulu obuncinci. Ikhabhinethi esembindini luhlobo lwekhabhinethi yeswitshi esetyenziswa ngabasebenzisi bokugqibela, enemisebenzi epheleleyo kunye nomthamo omkhulu. Kukho iintlobo ezininzi zeekhabhinethi eziphakathi, ezinokwahlulwa zibe ziikhabhinethi zeswitshi ezingenayo neziphumayo, iikhabhinethi zokulinganisa, iikhabhinethi zetransformer, kunye neekhabhinethi zetransformer ezisetyenzisiweyo. Iiswitshi kwiikhabhinethi eziphakathi zinokuxhotyiswa ngezixhobo zokukhusela ngokuzenzekelayo. Kwimeko yengozi, isixhobo sokukhusela sithumela isignali yokwenza iswitshi. Isenzo siyaphambuka kwaye sinqumle umbane. Uninzi lwee-VS1 vacuum circuit breakers zisetyenziswa kwikhabhinethi. Ngenxa yokusetyenziswa okwahlukeneyo, ulwakhiwo kunye nokukhethwa kwamacandelo kwezi zimbini zahlukile kakhulu.

Kwinkqubo yokubonelela ngombane nokusasazwa, kufuneka kubekwe phambili ukulinganisa okuphezulu kunokulinganisa okuphantsi kwamandla; ukulinganisa okuphantsi kwamandla kunokuqwalaselwa kuphela xa kungekho ndlela yokufaka ukulinganisa kwicala eliphantsi kwamandla; ngeli xesha, ikhabhinethi yokulinganisa engaphantsi kwamandla kufuneka ibekwe kwicala "elingaphambili". Oko kukuthi, umphambili womgca ongenayo we-voltage ephantsi kunye nomva we-transformer, kodwa ikhabhinethi yokulinganisa ayinakukhuselwa yikhabhinethi yomgca ongenayo we-voltage ephantsi, ngoko ke phantsi kweemeko eziqhelekileyo, kufuneka ibe phantsi kokhuselo lweswitshi yombane ophezulu we-transformer. Kule meko, zombini ikhabhinethi yenethiwekhi yeringi kunye nekhabhinethi ephakathi zingasetyenziswa.

Okwangoku, iRing Main Unit ayinakuxhotyiswa kuphela ngezixhobo zombane ezidibeneyo zokutshintsha umthwalo kunye nefuse, kodwa kunye nee-circuit breakers, ezifana ne-domestic XGN, iSchneider's SM6, iSiemens 8DJH, i-ABB's SAFE, njl.njl., kwaye ukhuseleko lwesibini lunokuxhotyiswa ngesixhobo sokukhusela i-microcomputer. Nangona kunjalo, i-circuit breaker efakwe kwi-ring main unit inomda womthwalo, kwaye imida ye-ring main unit yomenzi ngamnye yahlukile. NjengeSchneider RM6 Ring Main Unit, ukhuseleko lwe-high-voltage switch ye-transformer inkulu kune-2000KVA okanye ilingana ne-2000KVA, kwaye ukhuseleko lwe-circuit breaker + VIP300 microcomputer kufuneka lusetyenziswe. Umthwalo kwimigca engenayo nephumayo yekhabhinethi ephakathi awuthintelwanga.

Kakade ke, ngophuhliso lwetekhnoloji yombane ekhoyo ngoku, zombini ezi ntlobo zeekhabhinethi ziye zaphuhliswa kakhulu. Iikhabhinethi eziphakathi ziya zincipha; iYunithi ephambili yeRingi iya isiba nkulu ngakumbi; kodwa ngokubanzi, iikhabhinethi eziphakathi ziyasetyenziswa. Umsebenzisi wokugqibela zizixhobo zokulawula, kodwa ixabiso lazo liphezulu kakhulu; ikhabhinethi yenethiwekhi yeringi yayilungiselelwe ukusombulula ingxaki yokunikezelwa kwamandla kunye nokungeniswa, kwaye umsebenzi wayo ulula kakhulu, kodwa ulwakhiwo lwayo lulula, umthamo uncinci, kwaye ixabiso liphantsi kakhulu. Kutshanje, imisebenzi iye yandiswa rhoqo, ngakumbi ubungakanani bayo obuncinci kulula ukuyifaka ngaphakathi "kwebhokisi yotshintsho", ngoko ke inophuhliso oluhle kakhulu; okwangoku iYunithi ephambili yeRingi ayisetyenziswa nje kuphela njengekhabhinethi yokutshintsha uqhagamshelwano, kodwa ingasetyenziswa njenge-loop in and loop out switch Cabinet, metering cabinet, PT cabinet.
Ngoko ke, ngokukodwa, ukuba ezi zimbini zinokutshintshiselwana, ngenxa yokungangqinelani kwemisebenzi kunye nokusebenza kweemveliso zabavelisi abahlukeneyo, akulula ukutsho. Ngokuphathelele ukunciphisa iindleko, ikhabhinethi yenethiwekhi yeringi ineenzuzo ezithile. Ngophuhliso lwetekhnoloji yeyunithi ephambili yeringi, ukusetyenziswa kweyunithi ephambili yeringi kunye nekhabhinethi ephakathi kunokudibana ngamaxesha amaninzi. Kodwa kwinkqubo yokusasazwa kwamandla aphezulu enemijelo emikhulu engaphezulu kwe-1250A, ikhabhinethi ephambili yeringi ayinakuyithatha indawo yekhabhinethi ephakathi.