Generator Fault Tolerance and Grid Codes

In large interconnected power grids, it is incumbent on each generating plant to do its fair share in maintaining the security and reliability of the grid. The ability of a power plant to continue operation after a grid disturbance is governed by 1) the ability of its generator to recover voltage and remain in synchronism with the power grid after the disturbance (i.e., transient stability) 2) the ability of its turbine generator and auxiliary systems to remain in operation during and after the disturbance (i.e., fault ride-through capability).