Explain the function and maintenance of a capacitor bank used for power factor correction in a substation.

A capacitor bank is a group of capacitors connected together in series, parallel, or a combination of both. Capacitor banks are installed in substations for power factor correction. Power factor is a measure of how effectively electrical power is being used. A low power factor indicates that a significant portion of the current is reactive, meaning it does not contribute to doing useful work. This reactive current increases losses in the system, reduces voltage stability, and limits the amount of power that can be delivered. A capacitor bank corrects power factor by providing reactive power to offset the reactive power demand of inductive lo....