Capacitance Calculation

This web page can be used to calculate the capacitance of a single phase single or double bushing capacitor commonly used on medium and high voltage capacitor banks. Use Table one when the capacitor frequency and capacitive reactance is known.  Use table two when the capacitor frequency, kvar, and voltage rating are known. 

Table 1 - Calculation of Capacitance

Known Variables: Capacitor Frequency and Capacitive Reactance at frequency "f"  





Input capacitor frequency (Hertz)
Input Capacitor Reactance (Ohms)
Calculated Capacitance (Micro-Farads)

Table 2 - Calculation of Capacitance 

Known Variables: Capacitor Voltage, kvar, and frequency rating  




Input capacitor voltage rating (kv)
Input capacitor kvar rating (kvar)
Input Capacitor Frequency Rating (Hertz)
Calculated Capacitance (Micro-Farads)

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