Musiyano uripo pakati peZinc oxide Arrester neEndbow Arrester

Musiyano uripo pakatichinodzivirira zinc oxideuyechinhu chinobata gokora

1. (1) Nheyo yekushanda kwechinhu chinobata vharuvhu:
Kana sisitimu yacho yagara iri yakajairika, spark gap inoparadzanisa resistance ye valvu kubva mubhazi riri kushanda, kuitira kuti isapise resistance ye valvu nekuda kwemagetsi anowanikwa mu resistance ye valvu ne working voltage.
Kana voltage iri mubhazi riri kushanda yadarika kukosha kwayo kwevoltage yekupwanyika, spark gap ichapwanyika uye inotungamira magetsi emagetsi kuti apinde muvhu kuburikidza nekudzivirira kwevharuvhu. Panguva ino, kukosha kwekudzivirira kwekudzivirira kwevharuvhu kuchadzikira otomatiki kuderedza kusimba pamativi ayo maviri. Kumanikidzwa kwasara kunoumbwa.
Mushure mekunge mheni yanyangarika, voltage inoshanda pakudzivirira kwevharuvhu ndiro simba remagetsi. Panguva ino, simba rekudzivirira rekudzivirira kwevharuvhu richawedzera otomatiki, zvichideredza simba remagetsi rinotenderera kuti arc idzimwe nekukurumidza uye nenzira yakavimbika.

(2) Chinovhara vharuvhu chine mipata yakawanda yespark uye zvinodzivirira mavharuvhu zvakatevedzana.
Daro riri pakati penzvimbo ine spark gap diki, nzvimbo yemagetsi yakafanana nenzvimbo yemagetsi yakafanana, hunhu hwevolt-second hwakati sandara, uye kurongeka kweinsulation kuri nyore kuona. Pamusoro pezvo, nzvimbo dzakawanda dzinoita kuti arc ipatsanurwe kana simba richiramba richiyerera. Kana tichienzanisa nenzvimbo refu, nzvimbo pfupi iri nyore kucheka, uye kugona kudzoreredza simba reinsulation yenzvimbo kunovandudzwa.
Kuvapo kwekudzivirira kwevharuvhu kunodzivisa mafungu anocheka asingade kuputira. Kusaenderana kwayo kunoita kuti iratidze kusimba kwakaderera painodarika magetsi emagetsi kuti ideredze voltage yasara yeanobata uye ivandudze mashandiro ekudzivirira; painodarika frequency yemagetsi, inoratidza kusimba kwakakwirira uye voltage inogara iripo kuti ideredze frequency yemagetsi uye ivandudze mashandiro ekudzima arc.

2. (1) Nheyo yekushanda kwechinhu chinomisa zinc oxide:
Pasi pekushanda kwevoltage yekushanda, magetsi ari kuyerera nepavharuvhu yeZnO ari pasi pe1mA (chikamu chikuru i capacitive current), iyo yakaenzana ne insulator uye haizopisi vharuvhu, saka voltage yekushanda inogona kuparadzaniswa pasina gap rakatevedzana.
Kana voltage inoshandiswa kuvharuvhu yeZnO ikadarika kukosha kwakati (voltage yekutanga yekushanda U1mA), "on" inozoitika. Mushure me "on", resistance yevharuvhu yeZnO ishoma kwazvo, uye voltage yakasara ine chekuita nemagetsi ari kuyerera nepakati payo. Hazvina basa zvachose.
Kana voltage inoshandiswa yadzikira pasi pevoltage yekushandisa, "on" yeZnO valve plate inogumiswa, izvo zvakaenzana neinsulator, saka hapana power frequency freewheeling.
Ichi ndicho chikonzero nei MOA ichigona kuita kuti magetsi afambe zvakanaka pasina kutenderera. (Mheni inova chinhu chinodzivirira magetsi kare, saka mheni inongopfuura nepakati pevharuvhu yeZnO)
Kana tichienzanisa nemavharuvhu eSiC esilicon carbide, mavharuvhu eZnO ane hunhu hwakanaka hwe volt-ampere husina kurongeka.

(2) Kana tichienzanisa nechinhu chinobata chinoshandiswa neSiC valve disc uye series gap, chinodzivirira ...
①Chimiro chiri nyore, chakakodzera kugadzirwa otomatiki kwakakura, saizi diki, huremu hwakareruka uye mutengo wakaderera.
② Kushanda kwekudzivirira kwepamusoro. Nekuti vharuvhu yeZnO ine hunhu hwakanaka hwevolt-ampere, voltage yakasara yakaderera; inogona kuburitsa simba munguva yese ye overvoltage, uye hapana spark, saka hapana kunonoka kwekuburitsa, uye ine hunhu hwakanaka hwe steep wave response, kunyanya yakakodzera GIS Protection ye gas insulated substations uye DC systems.
③Kukwanisa kwakasimba kutsungirira zviito zvinodzokororwa, kunongotora simba remagetsi akawandisa, hapana chikonzero chekutora simba rinotenderera.
④Kukwanisa kuyerera kukuru. Kukwanisa kuyerera kwemvura pachikamu chimwe nechimwe chevharuvhu yeZnO kwakapetwa ka4 kusvika ka5 pane vharuvhu yeSiC. Inogona kushandiswa sedziviriro yekuchengetedza yekudzivirira kukwira kwemhepo mukati.
⑤Kudzivirira mavara zvakanaka. Sezvo pasina mukaha wezvikamu, dambudziko remagetsi asingagadziki ekubuda kwechikamu chezvipenyu nekuda kwekusvibiswa kusina kuenzana pamusoro pechipenyu cheporcelain rinogona kudzivirirwa, uye zviri nyore kugadzira zvinodzivirira kusvibiswa uye zvinochenesa zviri nyore. (Hazvikanganisirwi nekusvibiswa pamusoro)