Power Factor correction capacitors are normally rated in Kilovars. (kvar)
I assume this is a three phase installation. You say each motor has it's own capacitor bank. This could be three single phase capacitors or one three phase unit. They should be connected similar to the 3 phase example in the sketch below. (This is a very basic schematic with no protective or control devices shown.)

Tests -
Current should be equal in all three leads.
Measure the volts and amps and use the formula (in the sketch) to calculate the kvars. Should be as high or higher than the namplate rating.
To determine if the correct capacitor is installed is more complicated. For more information, see the sample calculation on my website at http://www.electric-ed.com/Samples.htm

Hope this helps,
Ed

[Linked Image from electric-ed.com]