This paper delineates replacing obsolescent 500-kV series-capacitor banks with metal-oxideprotected higher-current-rated capacitor banks. The new banks are the largest metal-oxide-protected capacitor banks in operation in the world.The method for selecting the metal-oxide-varistor rating is described and the system component designs-including a uniqug seismic-design platform--are presented along with definitive fault testing and operational data.
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