Lus piav qhia luv luv:

Qhov no transformer yog epoxy resin cased nrog tag nrho-pob cov qauv thiab tag nrho cov rwb thaiv tsev.Nws yog tsim los siv rau kev ntsuas ntawm voltage, hluav taws xob hluav taws xob thiab relay tiv thaiv nyob rau hauv lub hwj chim system nrog rated zaus 50Hz - 60Hz thiab nyob voltage 3,6, 10 kV los yog hauv qab no. Me me, lub teeb hnyav tuaj yeem ntsia tau rau ntawm txhua txoj haujlwm.