View a Video of an Operating Rectifier Mercury Arc Rectifiers were used to convert Alternating Current (AC) power to Direct Current (DC) power. They were used by Edmonton Power starting in the 1920s until they were phased out in the 1990s. Mercury ...

The Synchronous Converter was typically used to provide Direct Current (DC) for electrolysis in smelting, for traction motors in mine lifts and for street railway systems. The unit pictured had an Alternating Current (AC) input of 834 amps and a DC current ...

Used to Convert Alternating Current to Direct Current From the Edmonton 360 Sub 104 St. x 104 Ave. Supplied DC power for the operation of Edmonton's trolley Buses

Used to Convert Alternating Current to Direct Current From the Edmonton Transit system Supplied DC power for the operation of Edmonton's trolley Buses. Came from Man and His World  Montreal Expo 67 Installed in 1978-9 at the Westwood bus barn ...

Check out a video of a Mercury Arc Rectifier in operation. go to LINKS and click You Tube Our Photo Gallery has a new section on DC related items       

The panel pictured on the left is from one of the Direct Current (DC) motor generators installed at Rossdale Power Plant before 1915. In the 1960s it was used to control DC power from a motor generator set, which was a back up for the generator exciters ...