Samfura
Vacuum interrupter don MV VCB( yumbu harsashi, rated irin ƙarfin lantarki: 7.2kV-12kV)
Takaitaccen bayanin samfurin:
Yankewa na yanzu a cikin injin da'ira mai watsewa ya dogara da matsa lamba na tururi da kaddarorin fitar da lantarki na abun sadarwa.Matsayin sarewa kuma yana tasiri ta hanyar zafin zafin jiki-ƙananan yanayin zafin zafi, ƙananan shine matakin sara.
Yana yiwuwa a rage matakin da ake ciki a halin yanzu wanda tsinke ke faruwa ta hanyar zaɓar kayan haɗin da ke ba da isasshen tururi na ƙarfe don ba da damar halin yanzu ya zo zuwa mafi ƙarancin ƙima ko darajar sifili, amma wannan ba a cika yin hakan ba saboda yana rinjayar ƙarfin dielectric da mummunan rauni. .
Ƙarfin insulating: Idan aka kwatanta da sauran kafofin watsa labarai masu rufewa da ake amfani da su a cikin injin da'ira shine mafi girman matsakaicin dielectric.Ya fi duk sauran kafofin watsa labarai sai dai iska da SF6, waɗanda ke aiki da matsa lamba.
Lokacin da aka buɗe baka ta hanyar karkatar da lambobi a cikin sarari, katsewa yana faruwa a farkon sifilin yanzu.Tare da katsewar baka, ƙarfin dielectric ɗin su yana ƙaruwa har zuwa adadin dubbai idan aka kwatanta da sauran masu karyawa.
Kula
(1) Matakan hana wuce gona da iri.Vacuum circuit breaker yana da kyakkyawan aikin karyewa.Wani lokaci lokacin karya lodin inductive, ana haifar da babban wuce gona da iri a ƙarshen inductance saboda saurin canjin madauki na halin yanzu.Don haka, don masu canji irin busassun da sauran kayan aiki tare da ƙarancin ƙarfin ƙarfin ƙarfin ƙarfi, yana da kyau a shigar da na'urorin kariya na overvoltage, kamar masu kama ƙarfe oxide.
(2) Tsananin sarrafa nauyin halin yanzu.
Ƙarfin da ya wuce kima na injin da'ira ba shi da kyau.Tun lokacin da aka kafa rufin thermal tsakanin lamba da harsashi na injin kewayawa, zafi akan lambar sadarwa da sandar gudanarwa galibi ana watsa shi tare da sandar gudanarwa.Domin sanya zafin aiki na injin da'ira ba zai wuce ƙimar da aka yarda ba, aikin yanzu dole ne a iyakance shi sosai don zama ƙasa da ƙimar halin yanzu.
