Uzivimbela kanjani ngempumelelo izinkinga ze-overvoltage ngesikhathi sokusebenza kwesiteshi

Enkambweni yokusebenza kwe-transformer engekho-load, kuzoba nesenzakalo esingenakugwenywa somzimba, okungukuthi, ukusika.Inkinga yokusebenza ngokweqile kwe-overvoltage ngenxa yokunqanyulwa kwe-breaker circuit ingavinjelwa ngokuthatha lezi zinyathelo ezilandelayo:

1. Thuthukisa umnyombo wensimbi

Ukuthuthukisa i-iron core kunomphumela othile ekunciphiseni i-no-load current.Ngenxa yokuthi i-magnetizing yamanje kanye nokulahlekelwa kwensimbi yamanje ndawonye kwakha i-no-load yamanje, futhi i-magnetizing current izokhiqiza i-flux magnetic, futhi ukulahlekelwa kwe-iron core kuzobangela ukulahlekelwa kwensimbi yamanje, ngakho-ke umgogodla wensimbi we-transformer uyisici esibalulekile nciphisa i-no-load current.Ukuthuthukisa ngokwengeziwe isakhiwo esiwumgogodla kanye nokwenza ngcono ikhwalithi yomgogodla wensimbi yizinyathelo ezimbili eziyisisekelo.Izinhlamvu ezigoqiwe ezibandayo zingasetshenziswa esikhundleni samashidi ensimbi ye-silicon, ngoba uhlelo lokungena lukazibuthe lwezinhlamvu ezigoqelwe ngokubanda luphakeme kakhulu.Lapho i-transformer ishintshiwe, i-iron core kufanele ihlolwe futhi ihlolwe ngokuqinile ngokuvumelana nezindinganiso zekhwalithi ezifanele.

2. Ukuvunguza kwamukela uhlobo oluphithene

                                                               I-HV HIPOT GDB-P i-automatic transformer iphendulela umhloli wesilinganiso

I-transformer engu-220kV iyi-core transformer.Uma indlela yokuphefumula iphikisiwe, i-parasitic capacitance ye-transformer izokhula.I-winding ebambeneyo iwukufaka elinye ithuba lokuphenduka ngokuqondile phakathi kwamajika aseduze kagesi, ukuze amandla e-longitudinal ama-winging ande, futhi umehluko wangempela ongaba khona phakathi kwamajika aseduze uzokwanda nakakhulu, ukuze kuthi lapho kwenzeka kwesenzakalo se-overvoltage, i-voltage yokuqala ingasatshalaliswa ngokulinganayo phakathi kwamajika.

3. Sebenzisa iswishi ene-parallel resistor

Ngesikhathi sokunqanyulwa kwamanje, amandla kazibuthe ku-inductor azoguqulwa abe amandla kagesi ukuze ashaje i-capacitor.Ngalesi sikhathi, uma iswishi ixhunywe ngokuhambisana ne-resistor, amandla kazibuthe ku-inductor angakhululwa.Ngemuva kokuthi ukushintshwa okunokumelana okuhambisanayo kuvaliwe ngaphambi kokunqanyulwa kwamanje, ukumelana ne-switch parallel kufushane.Ngemva kokunqanyulwa kwamanje, iswishi ivalela i-R84Th N resistor ukuze yakhe i-current, ukuze kusetshenziswe amandla kazibuthe ku-inductor.