Vacuum interrupter(VI) yecontactor inonyanya kushandiswa kugaro batanidza uye kucheka yakajairika kushanda ikozvino.Iyi nhevedzano yevacuum interruper inotora ceramic insulating envelope uye Cu(W+WC) yekubata zvinhu zvine kukosha kwakaderera.Ichi chigadzirwa chine maitiro ekuita kwakavimbika, hupenyu hurefu, uye hukuru hudiki, etc. Contactor inofananidzwa nayo ine zvakanakira kugadzirisa nyore, hapana njodzi yekuputika, hapana kusvibiswa uye yakaderera ruzha, nezvimwewo, uye inogona kushandiswa zvakanyanya musimba remagetsi, mechanical, metallurgical, chemical and mine department, etc., kudzora kutapurirana uye kugovera system.Inonyanya kukodzera kushanda nguva nenguva yekucheka inductive mutoro uye inoshandiswa munzvimbo dzaanoshanda kazhinji.