Calculate current in a 120 VAC circuit with a series 10uF capacitor

[supak111]

Hi can someone tell me please how much current is passed though below circuit:

120 AC 60Hz mains power going through a 10uF 500v capacitor in series

 

[tech99]

Calculate the reactance of the capacitor at 60 Hz, using X = 1/ 2 pi f C. Of course, get the units correct, C expressed in Farads.
Next just use "Ohms Law for AC" to find the current. I = V/X

 

[Baluncore]

120 AC 60Hz mains power going through a 10uF 500v capacitor in series

You need to finish that sentence, or attach a circuit diagram.
Without knowing the impedance of the series load, the current computed will be a maximum.

 

[supak111]

Hi, maximum current was what I was after as I'm not yet sure what my load is going to be.

So capacitor impedance turn out is ~265 ohms, so my max current is ~0.45A (if I'm correct lol)

Thanks for the help

 

[berkeman]

Hi can someone tell me please how much current is passed though below circuit:

120 AC 60Hz mains power going through a 10uF 500v capacitor in series

Hi, maximum current was what I was after as I'm not yet sure what my load is going to be.

So capacitor impedance turn out is ~265 ohms, so my max current is ~0.45A (if I'm correct lol)

Thanks for the help

Um, based on your past posting history at PF, this might indicate that you are considering another dangerous project. Have you gotten any training or enlisted the help of a local Mentor in your AC mains projects since your previous posts? Just looking out for you...

 

[hutchphd]

Hi, maximum current was what I was after as I'm not yet sure what my load is going to be.

So capacitor impedance turn out is ~265 ohms, so my max current is ~0.45A (if I'm correct lol)

Thanks for the help

What are you trying to do ? This is a good resource..

 

[supak111]

It's a simple circuit I made (which actually works pretty damn good) to restore/desulfate old car lead acid batteries. I was just wondering what the max wattage the circuit was putting out.

 

[hutchphd]

OK

 

[berkeman]

It's a simple circuit I made (which actually works pretty damn good) to restore/desulfate old car lead acid batteries. I was just wondering what the max wattage the circuit was putting out.

You made a circuit to desulfate lead acid batteries using a 120V AC mains source with no fuse and only a 10uF capacitor in series...

 

[Tom.G]

You made a circuit to desulfate lead acid batteries using a 120V AC mains source with no fuse and only a 10uF capacitor in series...

Fine... UNTIL THE CAPACITOR SHORTS! Then you have an explosion of Battery Acid.

Please put a 1Amp fuse in the circuit. Specifically a fuse, they are more reliable than a circuit breaker.

Have fun, but be safe,
Tom

 

[supak111]

No there is more to the circuit... obviously a full bridge rectifier and a few other things but its not a complicated circuit.

I do have a fuse, thanks