Imibandela yokulinganisa isilinganiso sokumuncwa
Isilinganiso sokumuncwa kanye nenkomba ye-polarization ye-transformer enesigaba se-voltage engu-10kv kanye nomthamo we-transformer yenethiwekhi yokusabalalisa ngaphansi kuka-4000kvA ayikwazi ukulinganiswa.
Uma izinga lamandla kagesi we-transformer lingu-220kv noma ngaphezulu futhi umthamo ungaphezulu kuka-120MVA, isihloli sokumelana nokufakwa kwe-5000V kufanele sisetshenziswe ukukala isilinganiso sokumunca.Isilinganiso sokumuncwa akufanele sibe ngaphansi kuka-1.5 ekamelweni lokushisa.Uma inani lokumelana nokufakwa lingaphezu kuka-10000MΩ ku-R60min, inkomba ye-polarization ayidingeki.
I-GD3126A (GD3126B) I-Insulation Resistance Tester 5kV/10TΩ (10kV/20TΩ)
Izinkinga ezilandelayo kufanele zinakwe ekulinganiseni inkomba ye-polarization yesilinganiso sokumuncwa
(1) Isilinganiso ngasinye kufanele sikhethe isihloli sokumelana nokufakwa kwezinga le-voltage efanayo, abakhiqizi abahlukene abanawo umthelela;
(2) Ngesikhathi sokulinganisa, ulayini wokuphuma kwamandla kagesi aphezulu kufanele ukhethwe njengomugqa okhethekile wokuvikela amandla kagesi aphezulu, futhi umugqa ophumayo L no-N awukwazi ukushintshaniswa, ulayini wokuhlola akufanele ulimele futhi umiswe ngangokunokwenzeka;
(3) Ukuvimbela inkokhiso esele ekuthinteni imiphumela yokuhlolwa, into ehloliwe kufanele ikhishwe ngokugcwele ngaphambi kokuhlolwa;
(4) Ngaphambi kokuhlolwa, susa ucingo lokuhlola, sula inhlanganisela yokuhlola futhi uqiniseke ukuthi umhlabathi uthembekile;
(5) Ukuze uvimbele ithonya surface ukuvuza wamanje ngangokunokwenzeka emoyeni umswakama ukuhlolwa encane, lapho kudingekile ukuxhuma indandatho isihlangu;
Okungenhla yizinkinga okufanele zinakwe lapho kulinganiswa inkomba ye-polarization ye-absorption ratio.Kuyadingeka ukunaka ukukhethwa kwe-voltage yemishini yamandla.Kufanele ihambisane nemininingwane yokuhlola.
Isikhathi sokuthumela: Jan-10-2023