What is the purpose of having to install a Power Factor Correction Capacitor locally at a pump? I have never seen one before. Pump is 7.5 HP / 460 volt/3 phase/60 / 10.1 FLA. This pump is within a typical plant feed from the Motor Control Center.
Improve voltage on starting may be one reason. A capciotr on a single 7.5 HP motor does seem a little odd, unless the cable run is a long ways or the plant voltage is low at the MCC.
PF correction at the source of the low PF is the best way to go, if it is possible/practical. That way, it switches on and off with the low PF load, and is being used only when it is needed (along with reducing current, and therefore I^2R losses, in the cables and distribution equipment supplying it).
Be sure to account for the capacitors when specifying / setting motor protection. They reduce the current seen by the protective device while the stator current stays the same.
Thanks for all the responses. I found some information in the electric motor spec indicating it's required in order to raise the motor power factor to approx. 95%.