Ukusebenza kweDropout Fuse Cutout

Ukulungiselela ukhuseleko:

Xa ekhupha i-fuse yohlobo lwe-drop, umqhubi kufuneka asebenzise intonga yokukhusela ene-voltage efanelekileyo aze aphumelele uvavanyo, anxibe izihlangu zokukhusela, iiglavu zokukhusela, isiciko sokukhusela kunye neeglasi zokukhusela, okanye eme kwiqonga lomthi elomileyo, aze ajongwe ukuze kukhuselwe ukhuseleko lomntu.

Amanqaku:

Xa umqhubi eqala okanye ephelisa i-fuse yokutsala okanye yokuvala, akuyi kubakho mpembelelo. Impembelelo iya konakalisa i-fuse, njengokutsala nokuqhekeza i-insulator, ukujika umlomo wedada, ukutsala nokuphula iringi yokusebenza, njl. Abasebenzi akufuneki basebenzise amandla amaninzi ngexesha lokusebenza kwe-fuse yohlobo lwe-drop, ukuze kuthintelwe ukonakala kwe-fuse, kwaye ukwahlukana nokuvala kufuneka kube kwindawo.

Amandla enkqubo yefuse ayacotha (qala)- ngokukhawuleza (xa uqhagamshelwano oluhambayo lukufutshane noqhagamshelwano olungashukumiyo)- kancinci (xa uqhagamshelwano oluhambayo lusondele ekupheleni kokuvala). Inkqubo yokutsala ifuse iyacotha (qala)- ngokukhawuleza (xa unxibelelwano oluhambayo lukufutshane noqhagamshelwano olungashukumiyo)- kancinci (xa unxibelelwano oluhambayo lusondele ekupheleni kokutsala). Ukukhawuleza kukuthintela umbane omfutshane kunye nokutshisa unxibelelwano olubangelwa yi-arc, kancinci kukuthintela ukusebenza kwamandla okuchaphazela, okubangela umonakalo woomatshini kwifuse.

Thumela iodolo

Ulandelelwano lokusebenza lokumisa umbane we-transformer yosasazo lulandelayo: Kwiimeko eziqhelekileyo, kufuneka kutsalwe kuqala iswitshi ye-voltage ephantsi kwicala lomthwalo, emva koko kutsalwe i-fuse ye-voltage ephezulu kwicala lombane.

Kwimeko yombane omninzi, ngokwendlela echazwe ngasentla yokucinywa kombane, kunokuthintela ukudluliselwa kombane emva kwetransformer, kwimeko yokusilela, ukhuseleko lunokwala ukuhamba, longeze ixesha lokususa iimpazamo, lwenze ingozi yande. Ukusebenza kokudluliselwa kwenyathelo ngenyathelo kwicala lombane kunokunciphisa impembelelo yokuqala komsinga (umthwalo), kunciphise ukuguquguquka kombane, kwaye kuqinisekise ukusebenza okukhuselekileyo kwezixhobo. Kwimeko yokusilela, inokukhubeka okanye iyeke ukusebenza ngoko nangoko, kulula ukuyijonga, ukuyigweba kunye nokujongana nayo ngokwenqanaba lombane. Kwimeko yokusilela kombane, yeka icala lomthwalo kuqala. Kwindlela yokusebenza yokusilela kombane inyathelo ngenyathelo ukusuka kwi-voltage ephantsi ukuya kwi-voltage ephezulu, iswitshi inokukuphepha ukucima ukuhamba kombane omkhulu kwaye inciphise ubukhulu kunye nokuphindaphinda kokusebenza phezu kombane.

Xa usebenza, zama ukuphepha ukutsala nokuwisa iifusi ezinomthwalo. Ukuba kufunyaniswe ukuba iifusi ezinomthwalo azilungelelananga ngexesha lokusebenza, nokuba iifusi azilungelelananga okanye kwenzeka i-arc, akuvumelekanga ukuvula iifusi kwakhona. Ukuba kwenzeka i-fuse engalunganga enomthwalo, xa i-contact ehambayo ishiya nje i-contact esisigxina, kuya kwenzeka i-arc. Ngeli xesha, kufuneka ivalwe ngoko nangoko ukuze kususwe i-arc kwaye kuthintelwe ukwanda kwengozi. Nangona kunjalo, ukuba zonke iifusi zitsaliwe zivuliwe, akuvumelekanga ukuvala kwakhona iifusi ezitsalwe ngempazamo. Kwii-transformers zokusasaza ezinomthamo we-200 kva okanye ngaphantsi, iifusi ezikwicala le-voltage ephezulu zivunyelwe ukuba zahlukane kwaye zidibanise umsinga womthwalo.

Ulandelelwano lokusebenza

Ulandelelwano lokusebenza kwezigaba ezintathu zefusi yokuwisa i-voltage ephezulu.

Ukusebenza kokusilela kombane, kufuneka kuqala kutsalwe isigaba esiphakathi, emva koko kutsalwe amacala omabini esigaba.

Isizathu esiphambili sokutsala isigaba esiphakathi kuqala kukuqwalasela ukuba umbane xa isigaba esiphakathi sinqunyulwe ungaphantsi kwesigaba esisecaleni (inxalenye yomthwalo wesekethe ithwalwa zizigaba ezibini), ngoko ke i-arc incinci, kwaye akukho bungozi kumacala omabini esigaba. Xa i-fuse yohlobo lwe-drop phase yesibini (isigaba esisecaleni) isebenza, umbane mkhulu, ngelixa isigaba esiphakathi sitsaliwe sivuliwe, kwaye ezinye ii-fuse ezimbini zohlobo lwe-drop zikude kakhulu, nto leyo enokuthintela umjikelo omfutshane phakathi kwezigaba ezibangelwa yi-arc ende. Xa kukho umoya onamandla, kufuneka siqale sitsale isigaba esiphakathi, size sitsale isigaba se-lee, kwaye ekugqibeleni sitsale isigaba esijikelezayo ngokolandelelwano lokusilela kombane.

Xa uthumela umbane, amacala omabini esigaba sokuqala, emva kwesigaba esiphakathi.

Xa amandla edluliselwa, isigaba sokuqala somoya, emva koko sibuyele kwisigaba se-phoenix, kwaye ekugqibeleni isigaba esiphakathi, ukuze kuthintelwe i-short circuit ebangelwa yi-wind arc.

Inqaku lokufakela

Amanyathelo okukhusela xa kufakelwa i-fuse yokulahla umbane ophezulu

1, ukufakelwa kufuneka kube kukuxinana kokunyibilika (ukunyibilika malunga noxinzelelo lwe-24.5N), kungenjalo kulula ukubangela ubushushu beenwele ezichukunyiswayo.

2, i-fuse efakwe kwi-cross arm (ifreyimu) kufuneka iqine kwaye ithembeke, ayinakuba nayo nayiphi na into yokungcangcazela okanye yokungcangcazela.

3. Umbhobho wokunyibilikisa kufuneka ube ne-Angle ye-dip ye-25°±2°, ukuze umbhobho wokunyibilikisa ukwazi ukuwa ngokukhawuleza ngobunzima bawo xa ukunyibilikisa kudityaniswe.

4. I-fuse kufuneka ifakwe kwingalo enqamlezileyo (isakhelo) umgama othe nkqo ongaphantsi kwe-4m ukusuka emhlabeni. Ukuba ifakwe ngaphezulu kwe-transformer yokusasaza, kufuneka igcine umgama othe tye ongaphezulu kwe-0.5m ukusuka kumda we-contour engaphandle ye-transformer yokusasaza, xa kukho ezinye iingozi ezibangelwa kukuwa kwemibhobho enyibilikisiweyo.

5. Ubude bombhobho wokunyibilikisa kufuneka bulungiswe ngokufanelekileyo. Kufuneka ukuba ulwimi lomlomo wedada lukwazi ukubopha ngaphezulu kwesibini kwisithathu sobude bombhobho emva kokuvala, ukuze kuthintelwe isenzo esingalunganga sokuwa ngokwaso ngexesha lokusebenza.

6. Ukunyibilika okusetyenzisiweyo kufuneka kube yimveliso eqhelekileyo yomenzi oqhelekileyo, kwaye kube namandla athile oomatshini. Ngokubanzi, ukunyibilika kunokumelana namandla okuxinana angaphezu kwe-147N ubuncinci.

7. I-fuse yohlobo lwe-drop ye-10kV ifakwe ngaphandle, kwaye umgama phakathi kwezigaba ungaphezulu kwe-70cm.