Toroidal transformers muaj ob lub tshuab hluav taws xob rwb thaiv tsev, cov kev xav tau yog: qib rwb thaiv tsev ntawm tooj liab hlau thiab qib rwb thaiv tsev ntawm insulating nplaum daim kab xev. Cov qib rwb thaiv tsev ntawm tooj liab hlau muab faib ua: Chav A: 105 degrees; Qib E: 120 degree; Qib B: 130 degree; Chav Kawm F: 155 degrees; H qib: 180 degrees, qib rwb thaiv tsev ntawm insulating nplaum daim kab xev muab faib ua qhov zoo tib yam thiab kub tsis kam. Cov no tuaj yeem hloov kho rau qhov ntsuas hluav taws xob ntawm toroidal transformer raws li ib puag ncig koj siv.