Okufanayo kanye nomehluko phakathi kweRing Main Unit kanye neMetal Clad ekusetshenzisweni

Iyunithi Eyinhloko Yendandatho isetshenziswa ekuhlinzekweni kwamandla kwenethiwekhi yendandatho ukuxhuma imithombo emibili yamandla noma izingxenye zekhabhinethi yokushintsha. Umsebenzi oyinhloko ukuhlukanisa izingxenye ezimbili, ngomsebenzi owodwa nosayizi omncane. Ikhabhinethi ephakathi uhlobo lwekhabhinethi yokushintsha esetshenziswa abasebenzisi bokugcina, enemisebenzi egcwele kanye nomthamo omkhulu. Kunezinhlobo eziningi zamakhabhinethi aphakathi, angahlukaniswa ngamakhabhinethi okushintsha angenayo naphumayo, amakhabhinethi okulinganisa, amakhabhinethi okuguqula, kanye namakhabhinethi okuguqula asetshenzisiwe. Ama-switch kumakhabhinethi aphakathi angafakelwa amadivayisi okuvikela okuzenzakalelayo. Uma kwenzeka ingozi, idivayisi yokuvikela ithumela isignali yokwenza i-switch. Isenzo siyaphambuka futhi sinqamule ukunikezwa kwamandla. Iningi lama-VS1 vacuum circuit breakers asetshenziswa kukhabhinethi. Ngenxa yokusetshenziswa okuhlukile, isakhiwo kanye nokukhethwa kwezingxenye zalezi ezimbili kuhluke kakhulu.

Ohlelweni lokuphakelwa kwamandla nokusabalalisa, kufanele kunikezwe kuqala ukulinganisa okuphezulu kunokulinganisa okuphansi; ukulinganisa okuphansi kungacatshangelwa kuphela uma kungekho ndlela yokufaka ukulinganisa ohlangothini oluphezulu; ngalesi sikhathi, ikhabhinethi yokulinganisa ephansi kufanele ibekwe ohlangothini "lwangaphambili". , Okusho ukuthi, ingaphambili lomugqa ongenayo ophansi kanye nangemuva kwe-transformer, kodwa ikhabhinethi yokulinganisa ayikwazi ukuba ngaphansi kokuvikelwa kwekhabhinethi yomugqa ophansi ongenayo, ngakho-ke ngaphansi kwezimo ezijwayelekile, kufanele ibe ngaphansi kokuvikelwa kweswishi ephezulu ye-transformer. Kulokhu, ikhabhinethi yenethiwekhi yendandatho kanye nekhabhinethi ephakathi ingasetshenziswa.

Njengamanje, i-Ring Main Unit ayikwazi nje kuphela ukuhlonyiswa ngezinto zikagesi ezihlanganisiwe ze-load switch-fuse, kodwa futhi nama-circuit breaker, njenge-domestic XGN, i-Schneider's SM6, i-Siemens 8DJH, i-ABB's SAFE, njll., kanye nokuvikelwa kwesibili kungahlonyiswa ngedivayisi yokuvikela i-microcomputer. Kodwa-ke, i-circuit breaker efakwe ku-ring main unit inomkhawulo womthwalo, futhi imikhawulo ye-ring main unit yomkhiqizi ngamunye ihlukile. Njenge-Schneider RM6 Ring Main Unit, ukuvikelwa kwe-high-voltage switch ye-transformer kukhulu noma kulingana ne-2000KVA, kanye nokuvikelwa kwe-circuit breaker + VIP300 microcomputer kumele kusetshenziswe. Umthwalo emigqeni engenayo nephumayo yekhabhinethi ephakathi awunqunyelwe.

Vele, ngokuthuthukiswa kobuchwepheshe bamanje bokuphakelwa kwamandla, zombili izinhlobo zamakhabethe ziye zathuthuka kakhulu. Amakhabethe aphakathi aya ngokuya encipha; i-Ring Main Unit iya ngokuya isebenza; kodwa ngokuvamile, amakhabethe aphakathi asetshenziswa ku-. Umsebenzisi wokugcina yimishini yokulawula, kodwa intengo yayo iphakeme kakhulu; ikhabethe lenethiwekhi yendandatho ekuqaleni laklanywa ukuxazulula inkinga yokuphakelwa kwamandla kanye nokwethulwa, futhi umsebenzi walo ulula kakhulu, kodwa isakhiwo salo silula, ivolumu lincane, futhi intengo iphansi kakhulu. Muva nje, imisebenzi iye yandiswa ngokuqhubekayo, ikakhulukazi usayizi wayo omncane kulula ukuwufaka ngaphakathi "koshintsho lwebhokisi", ngakho-ke inentuthuko enhle kakhulu; njengamanje i-Ring Main Unit ayisetshenziswa nje kuphela njengekhabethe lokushintshana kokuxhumana, kodwa futhi ingasetshenziswa njenge-loop in and loop out switch Cabinet, metering cabinet, PT cabinet.
Ngakho-ke, uma sikhuluma ngqo, ukuthi lokhu kokubili kungashintshwana yini, ngenxa yokungahambisani kwemisebenzi nokusebenza kwemikhiqizo yabakhiqizi abahlukahlukene, akulula ukusho. Ngokuphathelene nokunciphisa izindleko, ikhabhinethi yenethiwekhi yendandatho inezinzuzo ezithile. Ngokuthuthuka kobuchwepheshe beyunithi yendandatho eyinhloko, ukusetshenziswa kweyunithi eyinhloko yendandatho kanye nekhabhinethi ephakathi kungahlangana ngezikhathi eziningi. Kodwa ohlelweni lokusabalalisa amandla olunamandla aphezulu olunezimpondo ezinkulu ezingaphezu kuka-1250A, ikhabhinethi eyinhloko yendandatho ayikwazi ukuthatha indawo yekhabhinethi ephakathi.