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Rectifier Efficiency

dc output data
Current =    amps
Voltage =    volts
ac input data
input current & voltage method
watthourmeter method
Current =    amps Seconds/Revolution =   
Voltage =    volts Meter Constant =   
Rectifier Efficiency =     percent
input current & voltage method watthourmeter method
Formula Used: Formula Used:

NOTE: According to Peabody, this method will not be strictly accurate, but will give a reasonable approximation.
Where  
r = secs/revolution
k = meter constant

The same method should always be used for subsequent efficiency measurements in order to detect any deterioration of rectifier efficiency.