Phase directional overcurrent supervisory element (67) associated – with current-based, Elements that schemes connect the GSU where the scheme is transformer(s) to the capable of tripping Transmission system for loss of that are used communications exclusively to export directional toward energy directly from the Transmission The overcurrent element shall be set greater than 130% of the a BES generating unit system installed on 1.0 per unit of the line nominal calculated current derived from the maximum aggregate or generating plant. 19 the high-side of the voltage nameplate MVA output at rated power factor (including the Elements may also GSU transformer or Mvar output of any static or dynamic reactive power devices) supply generating Phase directional plant loads. time overcurrent to relay (67) installed – asynchronous on the high-side of generators only the GSU (including transformer based installations) If the relay is installed on the generator-side of the GSU transformer use Option 12 End of Table 1
Elements that connect the GSU transformer(s) to the Transmission system that are used exclusively to export energy directly from a BES generating unit or generating plant. Elements may also supply generating plant loads. to asynchronous generators only (including installations) Phase directional overcurrent supervisory element (67) – associated with current-based, schemes where the scheme is capable of tripping for loss of communications directional toward the Transmission system installed on the high-side of the GSU transformer or Phase directional time overcurrent relay (67) – installed on the high-side of the GSU transformer If the relay is installed on the generator-side of the GSU transformer use Option 12 19 1.0 per unit of the line nominal voltage The overcurrent element shall be set greater than 130% of the calculated current derived from the maximum aggregate nameplate MVA output at rated power factor (including the Mvar output of any static or dynamic reactive power devices) End of Table 1 based