Here is all I know-
Capacitors in parallel is equal to the sum of their individual capacitances.
Capacitors in parallel give you something called the harmonic mien (sp?). I don't know what that means.
This is a bit of a long winded bump to see if anyone will chime in.
You bumped, but I just wobbled a little.
A three phase capacitor for Power Factor correction will usually be specified by nominal voltage and kVar energy capability. But they can also be specified by capacitance. In the latter case, the number would be the value of each of the three identical capacitors in the three-terminal, three phase unit.
They are meant to be used in a delta configuration to correct the power factor of a three phase motor or transmission line, whether that three phase load is wired as wye or delta.
PS: The term "harmonic mean" is used to describe a form of average value that uses the same calculation as resistance values in parallel, only multiplied by the number of resistors or capacitors in parallel. If two capacitances are equal, their harmonic mean is the same as that common number.
If they are unequal, it is weighted in favor of the smaller value.
1/2 ohm and 1 ohm resistors have a numeric average of .75 ohms. And you could also call that their average resistance when put in series. 1/2 + 1 =1.5, 1.5/2 = .75. Two .75 ohm resistor in series will have the same resistance as the original two in series.
1/2 ohm and 1 ohm resistors in parallel have a total resistance of 1/(2/1 +1/1) = 1/3 ohm. And the harmonic mean value would be twice that, 2/3 ohm. That is the value of two equal resistors which when put in parallel have the same total resistance as the original two in parallel.)
Anyway, two capacitors in series have a capacitance which is 1/2 of the harmonic mean, just as two resistors in parallel have resistance which it twice the harmonic mean.
If you have a three phase delta capacitor, there is no way that you can connect all three capacitors in parallel unless the unit has six terminals. If it did, you would get 3 x 96, not 2 x 96. But since you have only three terminals, by putting two of them in parallel you short out the third one and the result is just 192.