CONVERT PHASOR VALUES TO RMS VALUES

[Redskinsdb21]

if I have a phasor value of voltage = 120@ 120 degrees and say current = 10@-45 degrees lagging...how can I convert these to rms values....is it just add -30 or 150 degrees to each angle?

 

[Flyer_PE]

Typically, if the voltage is given to you as a phasor, the amplitude is the RMS value. The only time you will be making a conversion to or from RMS is if you are concerned with determining the peak voltage..

 

[Wildsoldier PE]

Also usually peak values are given if the voltage is given as a function like V=160sin(b+30) by looking at that voltage 160 is the peak value and needs to be converted to RMS. I havent use the formula in a long time but i think to convert the 160V to rms you only need to divide 160 by square root of 2. Dont remember. Can anyone confirm?

 

[bobadrew]

Yes, RMS voltage is peak to peak divided by the square root of 2.