Tsawg voltage DOL (ncaj-pib) ultra npaum peb-theem mus tas li hlau nplaum synchronous lub cev muaj zog rau cov khoom siv hauv kev lag luam tshuaj

Tom qab ntau tshaj li ob xyoos ntawm kev siv tiag tiag, tus nqi txuag hluav taws xob yog 11.5%