Ukuqhekeka kwama-capacitor e-ceramic kagesi aphezulu ngokuvamile kungahlukaniswa ngezigaba ezintathu. Phakathi nokusetshenziswa kwalawa ma-capacitor, kungase kwenzeke ukuphuka, okuvame ukudida ochwepheshe abaningi. Lawa ma-capacitor ahlolelwe i-voltage, i-dissipation factor, ukukhipha ingxenye, kanye nokumelana nokufakwa kwe-insulation ngesikhathi sokuthenga, futhi wonke aphumelela izivivinyo. Kodwa-ke, ngemva kwezinyanga eziyisithupha noma unyaka wokusetshenziswa, amanye ama-ceramic capacitor anamandla kagesi aphezulu atholakala eqhekekile. Ingabe lokhu kuphuka kubangelwa ama-capacitor ngokwawo noma izici zemvelo zangaphandle?
Ngokuvamile, ukuqhekeka kwama-capacitor e-ceramic kagesi aphezulu kungabangelwa okulandelayo izinto ezintathu ezingenzeka:
Okokuqala kungenzeka ukubola okushisayo. Uma ama-capacitor engaphansi kwezimo ezisheshayo noma ezinde ze-high-frequency kanye nezimo zokusebenza zamanje, ama-capacitor e-ceramic angase akhiqize ukushisa. Nakuba izinga lokukhiqiza ukushisa lihamba kancane, izinga lokushisa likhuphuka ngokushesha, okuholela ekuboleni okushisayo emazingeni aphezulu okushisa.
Okwesibili kungenzeka ukuwohloka kwamakhemikhali. Kukhona izikhala phakathi kwama-molecule angaphakathi e-ceramic capacitors, futhi ukukhubazeka okufana nokuqhekeka kanye ne-voids kungase kwenzeke ngesikhathi senqubo yokukhiqiza i-capacitor (izingozi ezingaba khona ekukhiqizeni imikhiqizo ephansi). Ngokuhamba kwesikhathi, ukusabela kwamakhemikhali okuthile kungaveza amagesi afana ne-ozone nesikhutha. Lapho la magesi enqwabelana, angathinta ungqimba lwe-encapsulation yangaphandle futhi adale izikhala, okuholela ekuqhekekeni.
Okwesithathu kungenzeka ukuhlukana kwe-ion. Ama-capacitor e-ceramic kagesi aphezulu ancike kuma-ion anyakazayo ngaphansi kwethonya lenkambu kagesi. Lapho ama-ion efakwa endaweni kagesi ende, ukuhamba kwawo kuyanda. Endabeni yamanje ngokweqile, isendlalelo se-insulation singalimala, okuholela ekuqhekekeni.
Ngokuvamile, lokhu kwehluleka kwenzeka ngemva kwezinyanga eziyisithupha noma ngisho nonyaka. Nokho, imikhiqizo evela kubakhiqizi abanekhwalithi ephansi ingase yehluleke ngemva kwezinyanga ezintathu kuphela. Ngamanye amazwi, isikhathi sokuphila kwalawa ma-capacitor e-ceramic kagesi aphezulu yizinyanga ezintathu kuphela ukuya onyakeni owodwa! Ngakho-ke, lolu hlobo lwe-capacitor ngokuvamile alufaneleki imishini ebalulekile njengamagridi ahlakaniphile namajeneretha anamandla kagesi. Amakhasimende egridi ehlakaniphile ngokuvamile adinga ama-capacitor ukuthi ahlale iminyaka engu-20.
Ukwandisa isikhathi sokuphila sama-capacitor, iziphakamiso ezilandelayo zingacatshangwa:
1)Faka esikhundleni se-dielectric ye-capacitors. Isibonelo, amasekhethi ekuqaleni asebenzisa i-X5R, Y5T, Y5P, nezinye izitsha zobumba zeClass II zingathathelwa indawo ngamaceramics Ekilasi I njenge-N4700. Kodwa-ke, i-N4700 ine-dielectric constant encane, ngakho-ke ama-capacitor enziwe nge-N4700 azoba nobukhulu obukhulu be-voltage efanayo namandla. Izitsha zobumba zekilasi I ngokuvamile zinamanani okumelana nokufakwa okungaphezulu ngokuphindwe izikhathi eziyishumi kune-Ceramics Yekilasi II, enikeza amandla okufaka aqine kakhulu.
2)Khetha abakhiqizi be-capacitor abanezinqubo ezingcono ze-welding zangaphakathi. Lokhu kuhilela ukucaba nokungabi nasici kwamapuleti e-ceramic, ukujiya kocwecwe lwesiliva, ukugcwala konqenqema lwepuleti le-ceramic, ikhwalithi yokunamathisela ngomthofu noma amatheminali ensimbi, kanye nezinga le-epoxy coating encapsulation. Le mininingwane ihlobene nesakhiwo sangaphakathi kanye nekhwalithi yokubukeka kwama-capacitor. Ama-Capacitor anekhwalithi engcono yokubukeka ngokuvamile anokukhiqiza okungcono kwangaphakathi.
Sebenzisa ama-capacitor amabili ngokuhambisana esikhundleni se-capacitor eyodwa. Lokhu kuvumela i-voltage ekuqaleni ethwalwa yi-capacitor eyodwa ukuthi isatshalaliswe phakathi kwama-capacitor amabili, okwenza ngcono ukuqina kukonke kwama-capacitor. Nokho, le ndlela inyusa izindleko futhi idinga indawo eyengeziwe yokufaka ama-capacitor amabili.
3) Kuma-capacitor anamandla kagesi aphezulu kakhulu, afana no-50kV, 60kV, noma ngisho no-100kV, isakhiwo esihlanganisiwe sepuleti elilodwa le-ceramic elihlanganisiwe lingashintshwa ngochungechunge lwepuleti le-ceramic elinezingqimba ezimbili noma isakhiwo esihambisanayo. Lokhu kusebenzisa ama-capacitor e-ceramic anezendlalelo ezimbili ukuthuthukisa amandla okumelana nogesi. Lokhu kunikeza imajini kagesi ephezulu ngokwanele, futhi uma imajini kagesi ikhudlwana, iba yinde iminyaka yokuphila yama-capacitor. Njengamanje, yinkampani ye-HVC kuphela engafinyelela ukwakheka kwangaphakathi kwama-capacitor e-ceramic kagesi aphezulu isebenzisa amapuleti e-ceramic anezendlalelo ezimbili. Nokho, le ndlela iyabiza futhi inobunzima benqubo yokukhiqiza ephezulu. Ukuze uthole imininingwane ethile, sicela uthintane nethimba labadayisi nobunjiniyela lenkampani ye-HVC.
