The customers located far away from step down 20/0.4 kV transformer do not always receive qualitative electricity in the sense that voltage deviations and voltage dips are too great. In some cases, situation can be improved by increasing cross section area of phase conductors. When it is too expensive, the transfer voltage must be increased. To make deep input at 20 kV voltage, may appear to be unacceptable. In such a case, the possibility of engaging intermediate voltage 1 kV which still is assigned to low voltage class may prove efficient. When step down transformer has, besides secondary winding 0.4 kV, the winding 1 kV as well, one intermediate transformer 1/0.4 kV is needed, otherwise 0.4/1 kV and 1/0.4 ones are necessary. The options without and with intermediate transformer (s) are considered and compared.