Measure the ohmic resistance R of the bulbs. The condition to fulfill is that the three reactances must be equal, so the reactive capacitance should be:
XC = R and Xc = 1 / (2. pi . f . C ) from which :
C = 1 / ( 2. pi . f . R)
with R in kohms, C in microfarads and f = 60 Hz , we have the capacitor's value:
C [uF] = 1 / ( 0.12 pi R ) = 2.65 / R [kohm]
Thanks, and see this attached circuit, here i am in confuse that what should be the wattage ratings of the resisters and voltage ratings of the capacitors.The frequency will probably not make any difference. The voltage might be important, though.
Can you post your circuit?
A proper portable phase indicator is actually a very small(tiny) three phase motor with a rotating disc attached to the shaft to indicate direction of rotation. They are small and very common and used extensively in power industry, for a good reason.thanks rm,
your suggestion will work but i need some portable phase sequence indicator.
by Aaron Carman
by Jake Hertz
by Duane Benson
by Jake Hertz