without an overhead wire at Oslo Hospital. This allowed each of the pantographs to touch their current at the same time. All the trams had four motors, each running at 600 V. They were grouped in two pairs, each serial connected. 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 . Notes Sources Ekeberg Defunct railway companies of Norway Oslo Tramway operators Railway companies established in 1914 Railway companies disestablished in 1993 1993 disestablishments in Norway Norwegian companies established in 1914