Nheyo yekushanda yakangofanana neye transformer, uye iyo yakakosha chimiro zvakare isimbi yesimbi uye yekutanga uye yechipiri windings. Chimiro ndechekuti kugona kwacho kudiki uye kwakangofanana, uye iri padyo neasina-mutoro mamiriro panguva yakajairika kushanda.
Iyo impedance yevoltage transformer pachayo idiki kwazvo. Kana chikamu chechipiri chikapfupika-chinotenderera, ikozvino ichawedzera zvakanyanya uye coil ichapiswa. Nechikonzero ichi, divi rekutanga revoltage transformer rakabatana nefuse, uye chikamu chechipiri chakadzikwa zvakavimbika kudzivirira tsaona yemunhu neyemidziyo kuti isaitike kana iyo yekutanga neyechipiri yedivi insulation yakuvadzwa uye chikamu chechipiri chine mukana wakakura wekuita. pasi.
Magetsi emagetsi ekuyera kuyera anowanzo kugadzirwa e-single-phase kaviri-coil chimiro, uye yekutanga voltage ndiyo voltage inoyerwa (senge tambo yemagetsi emagetsi system), inogona kushandiswa muchikamu chimwe chete, kana maviri anogona. kuve yakabatana muVV chimiro chetatu-chikamu. use. Iwo magetsi emagetsi anoshandiswa murabhoritari anowanzo kupfava akawanda padivi rekutanga kuti asangane nezvinodiwa zvekuyera ma voltages akasiyana. Iyo voltage transformer yekudzivirira ivhu zvakare ine yechitatu coil, iyo inonzi matatu-coil voltage transformer
Iyo yechitatu-chikamu chetatu coil yakabatana mune yakavhurika yetatu, uye maviri anotungamira magumo eakavhurika matatu akabatana nevoltage coil yegrounding protection relay.
Panguva yekushanda kwakajairika, ma-voltages matatu-chikamu chesimba remagetsi akaenzana, uye huwandu hwematatu-chikamu akakonzeresa magetsi emagetsi pacoil yechitatu zero. Kamwe chete-chikamu kudzika kwaitika, iyo isina kwayakarerekera poindi ichabviswa, uye zero-sequence voltage inozoonekwa pakati pematerminal eakavhurika matatu matatu kuita relay kuita, nekudaro kudzivirira iyo simba system.
Kana zero-sequence voltage ichioneka mucoil, zero-sequence magineti flux inozoonekwa mune inoenderana iron core. Kuti izvi zviitike, iyi matatu-phase voltage transformer inotora rutivi rwejoko musimboti (kana 10KV uye pazasi) kana matatu single-phase voltage transformers. Kune rudzi urwu rwetransformer, kurongeka kwekoiri yechitatu hakuna kukwirira, asi kunoda humwe hunhu hwekuwedzeredza (kureva kuti, kana iyo yekutanga voltage ichiwedzera, iyo magineti flux density musimbi core inowedzerawo neinoenderana yakawanda isina kukuvara).
Basa reiyo voltage transformer: kushandura iyo yakakwira voltage kuita yakajairwa yechipiri voltage ye100V kana kudzika maererano nekushandiswa kwekudzivirira, metering uye zvishandiso zvekushandisa. Panguva imwecheteyo, kushandiswa kwevashanduri vemagetsi kunogona kuparadzanisa kukwirira kwepamusoro kubva kune vashandi vemagetsi. Kunyangwe iyo voltage transformer iri zvakare mudziyo unoshanda zvinoenderana nemusimboti wemagetsi induction, hukama hwayo hwemagetsi emagetsi hwakapesana chaizvo neiyo yezvino transformer. Chikamu chechipiri chevheji yemagetsi ndeyepamusoro-impedance circuit, uye ukuru hwechipiri chemazuva ano hunotaridzirwa ne impedance yedunhu.
Kana iyo yechipiri mutoro impedance yadzikira, yechipiri ikozvino inowedzera, kuitira kuti yekutanga ikozvino inongowedzera nechikamu kugutsa hukama hwemagetsi emagetsi pakati pekutanga uye yechipiri mativi. Zvinogona kutaurwa kuti iyo voltage transformer ishanduko yakakosha ine dhizaini chimiro uye fomu yekushandisa. Zvichitaurwa zviri nyore, ndiyo "detection element".
Nguva yekutumira: May-04-2022