The 11 kV voltage level and 33 kV is used mainly with cable distance is very short, and the voltage level that is higher than the distance of a transmission line that far up.
For high-voltage 11 kV and 33 kV are mostly used with very short distances and at higher voltage levels are applied to the distance of the transmission line further.
For the voltage level and 11 kV 33 kV is mainly used to line distances very short and the higher voltage is used with the distance of transmission lines that far.