Mercury Arc Rectifier
1920s to 1990s
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 Arc Rectifiers were used mainly to provide DC power for Edmonton's street cars and trolley buses.
Note: the photo the bulbs on the right were taken at Fort Edmonton Park 2012-09-13 at 5:36 PM
they last ran in Oct of 2012