Molao-motheo oa ho itšehla thajana oa mekhahlelo e meraro o amohela molao-motheo oa ho kenella ka motlakase. Ho bolokehile ho sebelisa transformer ea ho itšehla thajana ea mekhahlelo e meraro, eo hangata e sebelisoang e le phepelo ea motlakase ea tlhokomelo. Transformer ea ho itšehla thajana hangata ke 1: 1 transformer, empa e na le litlhaloso tse fapaneng. Li-transformer tsa ho itšehla thajana tsa mekhahlelo e meraro li sebelisetsoa ho fetola motlakase, mabone, phepelo ea matla le ho lokisa phepelo ea motlakase, e sebelisoang haholo likhoebong tsa indasteri le tsa merafo, limela tsa motlakase, boema-fofane, meaho e phahameng, metro le libaka tse ling tse nang le litlhoko tse phahameng tsa polokeho ea mollo.