1. Zama ukukhetha ilahleko ephantsi, i-transformer ephezulu yokugcina amandla

2. Khetha i-transformer enomthamo ofanelekileyo ngokomthwalo

3. Umyinge womthwalo we-avareji ye-transformer iya kuba mkhulu kune-70%

4. Xa umyinge womthwalo oqhelekileyo uhlala ungaphantsi kwe-30%, i-transformer umthamo omncinci kufuneka utshintshwe ngokufanelekileyo

5. Ukuphucula amandla omthwalo womthwalo wokuphucula amandla e-transformer ukuhambisa amandla asebenzayo

6. Ukwabela umthwalo ngokufanelekileyo ukunciphisa inani leenguqu ezisebenzayo