Comparison Between Static Capacitors and Synchronous Condensers

The comparison between static capacitors and synchronous condensers can be made based on factors like power factor, overloading, kVAR, system stability, power loss, installation, change of rating, and failure, listed below the table.

S.no	Static Capacitors	Synchronous Condensers
1	Better control of the power factor is possible.	More than better control of the power factor is needed.
2	Overloading for a short time interval is possible.	Overloading is not possible.
3	Greater kVAR is supplied when there is a voltage drop.	Less kVAR is supplied when there is a voltage drop.
4	The stability of the system is improved due to the existence of inertia.	The stability of the system remains unchanged.
5	Power loss in the system is high.	Power loss in the system is low.
6	Installation can be at only one point.	It can be installed at any point in the system.
7	The rating cannot be changed.	The rating can be changed.
8	Difficulties exist in the installation.	Installation is easier.
9	Less failure rate of the system.	The high failure rate of the system.
10	Suitable and economical, where the requirement of kVAR is more than 10,000.	Suitable and economical where the requirement of kVAR is small.

The selection choice between static capacitors and synchronous condensers depends on specific system requirements, including the need for dynamic response, budget constraints and maintenance capabilities. Static capacitors are often favored for straightforward applications, while synchronous condensers are valuable for complex systems needing robust reactive power management.