Musimba renyika yangu, 6-35KV AC gidhi remagetsi rinoita basa rakakosha mukuona kuti kune magetsi akatsiga uye akavimbika kunzvimbo dzemaguta.Mukati meiyi sisitimu, mapoinzi asina kwaakarerekera anodzorwa kuburikidza neakasiyana nzira dzekumisa senge arc kudzvanya macoil, yakakwirira kumisa pasi, uye kushoma kudzika pasi.Nekudaro, imwe nzira inomira kunze kwekushanda kwayo ndeye kwayakarerekera point resistance grounding, iyo inosanganisira kushandiswa kwetransformer kwazvakarerekera point grounding resistance cabinet.
Mumagetsi emagetsi, kunyanya ayo ane tambo semitsetse yekufambisa huru, pasi capacitor ikozvino inogona kuva yakakosha, zvichiita kuti pave nekuitika kwe "intermittent" arc ground overvoltage pasi pemamiriro ezvinhu "anokosha" chaiwo.Apa ndipo panopinda nzira yekusarerekera point resistance grounding.Nokugadzira ivhu overvoltage uye kugadzira chiteshi chekuburitsa chesimba mugridi-kusvika-pasi capacitance, nzira iyi inopinza kushorwa ikozvino munzvimbo yekukanganisa, zvichiita kuti kutadza kwepasi kuitike.
Iyo yekupokana-capacitance pfuma yeyasina kwayakarerekera point resistance grounding nzira inoderedza chikamu chekona musiyano nevolti, nekudaro ichidzikisa mwero wekudzimisazve mushure mekunge chikanganiso chazvino chayambuka zero.Izvi zvinonyatso kutyora iyo "yakakosha" mamiriro earc overvoltage uye inodzika iyo overvoltage kune akati wandei echikamu voltage mukati me2.6.Pamusoro pezvo, iyi nzira inogonesa kuchengetedzwa kwepasi kwakadzikama uku uchinyatsoona uye kubvisa zvikanganiso zvekutanga uye zvechipiri zveanodyisa, nekudaro kuchengetedza kushanda kwakajairika kwehurongwa.
Iyo transformer isina kwayakarerekera poindi yekumisa kuramba kabati inoita basa rakakosha mukuita yekusarerekera point resistance yekumisa nzira.Inopa zvivakwa zvinodiwa kuti zvigadzirise uye kudzora kupikisa kwepasi, kuve nechokwadi chekuti hurongwa hwemagetsi hunoshanda nemazvo uye zvakachengeteka.Nekunzwisisa kukosha kwemidziyo iyi uye nzira yainofambisa, vashandi vemagetsi emagetsi vanogona kudzivirira zvinobudirira kubva pazvikanganiso zvepasi uye kuve nechokwadi chekupihwa kusingapindirwe kwemagetsi kunzvimbo dzemaguta.
Mukupedzisa, the transformer neutral point grounding resistance cabinet, pamwe chete ne neutral point resistance grounding method, chinhu chakakosha mukuchengetedza kugadzikana uye kuvimbika kwemasimba emagetsi.Basa rayo mukudzikisa kukanganisa kwepasi uye overvoltages yakakosha pakuona kuenderera uye kwakachengeteka kushanda kwemadhorobha emagetsi masisitimu.
Nguva yekutumira: May-27-2024