ABSTRACT

Power factor correction capacitors can be installed at high voltage bus, distribution, or at the load [1-3]. The following power factor correction approaches are commonly used.

7.1.1 Group Capacitor Bank

A group capacitor bank installation is shown in Figure 7.1. In this approach, the power factor correction is applied to a group of loads at one location. This technique is suitable for utility or industrial customers with distributed load. If the entire load comes on or off together, then it is reasonable to switch the capacitor bank in this manner. If part of the load is switched on and off on a regular basis, then this type of reactive compensation is not appropriate. It is economical to have a large capacitor bank for reactive compensation rather than several smaller banks.