The two groups were connected so they were either serial or parallel connected, so each motor would either receive 300 V or 600 V. However, they were not connected to they would receive the same current in the city as on the hill section, thus the trams had only half the power when running on the 600 V section, with each motor either running at 150 V or 300 V. However, peak power was not needed, as the city was flat and had a maximum speed limit of 40 kmph .