Nws tuaj yeem ntsuas qhov sib piv, pawg thiab theem kaum sab xis, uas yog tsim rau txhua hom kev hloov pauv xws li Z hom transformers, rectifier transformers, hluav taws xob rauv transformers, theem-hloov transformers, traction transformers, scott thiab invert-scott transformers.