CORRECT PHASE MATCHING BETWEEN CHANNELSPhase matching of the system is another critical issue.The errors induced in the system at PF = 1 are minimal.A power factor of 0.5 with a phase error as little as0.5 degrees will cause a 1.5% error in the power mea-surement.
Hi guys and gals,I hooked up the front end of my ADC to my oscilloscope and measured something interesting. Specifically, there appears to be a variable phase lag between the transformer for the voltage signal (ERA 0.08VA) and the current transformer (CR Magnetics CR8348-2500-N) as a function of load. Voltage always is lagging current. The phase lag ranges from ~ 1.32ms at a 40W load to 0.722ms lag with a 1340W load. Both loads have unitary gain, i.e. a 40W light bulb and a toaster. Is this normal?
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16