Series Resonant Circuit
For the series R-L-C circuit resonance will occur when the total impedance is purely resistance.
This occurs when XL = XC...
With this We Can Expand This
 and 
We Already Know, From the Earlier Discussions, that
 and 
 and 
And We Allow H to be a Multiple of "F," We Can Force (2) to Look Like this
 then changing this to
 
Reducing this We Get
 
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(3)
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H will be the harmonic multiple to the fundamental.
From an Earlier Paper We Showed the Following
From (3) We Can Come Up with the Systems Harmonic Resonance
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(4)
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Where
H = harmonic order...
MVAsc =  = available short circuit at the capacitor bank.
MVAR = capacitor bank size.
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