We provided design of the electromechanical relay replacement 100MW black start diesel plant, including all AC and DC control schematics, and three line diagrams to house the new Beckwith and SEL differential relays. The existing differential relay replaced proved to be particularly challenging. We specified and procured the relays, FT-1s, and other components. The project was performed in a phased approach so that only one generator was taken down at a time. Our team provided three months of professional engineering services for onsite construction support for the retrofit.
Medium Voltage Substations and Relaying