Watt-hour-meter performance with power rectifiers

This paper gives the results of tests made principally to determine the effect of 6- and 12-phase mercury-arc power-rectifier loads on the performance of typical polyphase watt-hour meters. Schematic diagrams of the connections used and oscillograms of the rectifier voltage and current waves are included. The results indicate that the effect to be expected will be well within one per cent.