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# Harmonic Filter Calculation

1. ## Harmonic Filter Calculation

Which order harmonic would be effectively removed from a power system by applying a single-tuned filter with a 0.55 μF capacitor and a 500 mH inductor?

How do you calculate this?

2. Originally Posted by ElectricalTestTech
Which order harmonic would be effectively removed from a power system by applying a single-tuned filter with a 0.55 μF capacitor and a 500 mH inductor?

How do you calculate this?
I believe the formula is 1/(2PI*SQRT(LC))

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Originally Posted by Wanderer20001us
I believe the formula is 1/(2PI*SQRT(LC))
Can you walk us through this calculation? I have tried doing it several times and haven't come up with what they say is the correct answer yet.

4. Originally Posted by kchenoweth
Can you walk us through this calculation? I have tried doing it several times and haven't come up with what they say is the correct answer yet.
L*C =0.5*0.00000055=0.000000275
sqrt(0.000000275)=0.0005244
2pi*0.0005244=0.003294
1/0.003294=303.49hz
303.5hz/60hz=5.058 or 5th Harmonic

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