Generator or synchronous condenser step-up affected the affected the transformer changes. coordination. coordination. R1. R1. Each Generator Owner that has generator N/A N/A N/A The Generator Owner PRC-024-2 frequency protective relaying activated to trip that has frequency its applicable generating unit(s) shall set its protection activated to protective relaying such that the generator trip a generating unit, frequency protective relaying does not trip the failed to set its applicable generating unit(s) within the trip generator frequency “no of PRC-024 Attachment 1, subject to the protective relaying so zone” following exceptions: that it does not trip within the criteria listed Generating unit(s) may trip if the protective • in Requirement R1 functions (such as out-of-step functions or unless there is a functions) operate due to an impending documented and or actual loss of synchronism or, for communicated asynchronous generating units, due to regulatory or instability in power conversion control equipment limitation equipment. per Requirement R3. Generating unit(s) may trip if clearing a system • fault necessitates disconnecting (a) generating unit(s). Generating unit(s) may trip within a portion of the trip of PRC-024 Attachment 1 for “no zone” documented and communicated regulatory or equipment limitations in accordance with Requirement R3. R2. Each Generator Owner that has generator N/A N/A N/A The Generator Owner PRC-024-2 voltage protective relayingError! Bookmark with voltage protective not defined. activated to trip its applicable relaying activated to generating unit(s) shall set its protective trip a generating unit, relaying such that the generator voltage failed to set its voltage protective relaying does not trip the applicable protective relaying so generating unit(s) as a result of a voltage that it does not trip as a excursion (at the point of interconnection) result of a voltage caused by an event on the transmission system excursion at the point external to the generating plant that remains of interconnection, within the trip of PRC-024 caused by an event “no zone”
Generator or synchronous condenser step-up transformer changes. affected the coordination. affected the coordination. PRC-024-2 R1. R1. Each Generator Owner that has generator frequency protective relaying activated to trip its applicable generating unit(s) shall set its protective relaying such that the generator frequency protective relaying does not trip the applicable generating unit(s) within the “no trip zone” of PRC-024 Attachment 1, subject to the following exceptions: • Generating unit(s) may trip if the protective functions (such as out-of-step functions or functions) operate due to an impending or actual loss of synchronism or, for asynchronous generating units, due to instability in power conversion control equipment. • Generating unit(s) may trip if clearing a system fault necessitates disconnecting (a) generating unit(s). Generating unit(s) may trip within a portion of the “no trip zone” of PRC-024 Attachment 1 for documented and communicated regulatory or equipment limitations in accordance with Requirement R3. N/A N/A N/A The Generator Owner that has frequency protection activated to trip a generating unit, failed to set its generator frequency protective relaying so that it does not trip within the criteria listed in Requirement R1 unless there is a documented and communicated regulatory or equipment limitation per Requirement R3. PRC-024-2 R2. Each Generator Owner that has generator voltage protective relayingError! Bookmark not defined. activated to trip its applicable generating unit(s) shall set its protective relaying such that the generator voltage protective relaying does not trip the applicable generating unit(s) as a result of a voltage excursion (at the point of interconnection) caused by an event on the transmission system external to the generating plant that remains within the “no trip zone” of PRC-024 N/A N/A N/A The Generator Owner with voltage protective relaying activated to trip a generating unit, failed to set its voltage protective relaying so that it does not trip as a result of a voltage excursion at the point of interconnection, caused by an event
VSL_Matrix_Complete_2016_01_01.docx