The combination of a compact enclosure and economic price make this an ideal rectifier for urban distribution companies. The F-Type rectifier is a variable transformer adjusted to provided constant voltage output control. This rectifier is typically supplied as an Air-Cooled unit but is optionally available as Oil-Cooled as well.
Incoming AC power is stepped down and isolated, controlled by the variable transformer and rectified to a controlled DC output. Input overload and short circuit protection are provided by a combination fuse/switch and output protection by means of a one-time fuse in the transformer secondary. Primary AC/DC surge protection and secondary surge protection is provided by disk-style metal oxide varistors (MOVs).