What types of capacitor banks are typically used in 500KV and 230KV receiving stations?

In high voltage substations, such as those operating at 500KV and 230KV, overhead capacitor banks are commonly utilized for power factor correction and voltage support. These capacitor banks are designed to be placed on structures that can withstand the high electrical stress and environmental conditions typical in high voltage applications. Overhead installations provide the advantage of ease of access for maintenance and better clearance with respect to ground and other structures.

The use of overhead capacitor banks allows for greater flexibility in the design and layout of a substation as well, facilitating expanded operational capacities and grid interconnection points. Additionally, being overhead minimizes the potential for space constraints that could impede the efficient operation of the electrical substation.