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Re: simple reactance calculations



Original poster: Mddeming@xxxxxxx In a message dated 4/29/06 1:21:19 P.M. Eastern Daylight Time, tesla@xxxxxxxxxx writes:
Original poster: "Langer Giv'r" <transworldsnowboarding19@xxxxxxxxxxx>

Hello, I am having some trouble finding the capacitive reactance for
a capacitive current limiter.  Im sure the problem is a small error
that i am frequently overseeing but still I am stumped.  I want to
get about 5 ohms reactance from a capacitor, but i do not know what
capacitance to use

with 0.95uF, and using the reactance formula, it says i get 2792 ohms
of reactance, which is obviously wrong.  1 / ((2)(pi)(f)(Capacitance))

Does anyone have a solution for this?  and also, is it true that
capacitive reactance increases as capacitance is decreased?

thanks

Hi Langer,

Reactance is a function of frequency. What frequency are you using? Your calculation seems correct for f = 60 Hz, and yes Xc Is inversely proportional to 1/C.
Matt D.