Tim Reynolds will follow up with Dean Spratt to know the results of the analysis done for Peer Review process. The HPWG will look at the event to see if there are best practices or lessons learned about coordinating protection between generation and substation. STATUS: 12/06/2017 Information was shared at the meeting that this was a timing – issues where generation personnel changed the relay drawings and failed to notify those in the project in charge of relay coordination before the commissioning. As a preventative measure, the company is putting into place a step to review and verify all future settings match the prints before commissioning. In addition, they will also add an extra step that final prints will be reviewed again for relay settings before it goes live. STATUS: 1/10/2018 The HPWG will continue analyzing the event for potential – lessons learned. October 23, 2017 Category 1a – A high side breaker failed to trip in the required time and generated a bus lockout on a 115-kV bus, causing all breakers connected to the bus to trip and open ending of four 115-kV lines, one reactor, and the connection for a 230-115-kV transformer. AI Regarding the Oct 23, 2017 Category 1a event, EPAS members will follow up with – – the following action item: Tim Reynolds will ask the following questions: Was the incident a miss-step or a flaw in the breaker (slow tripping breaker)? Are there any follow-up actions that are going to take place or procedures that need to be corrected? STATUS: 2/7/2018 The entity is working on education and HPI tools for the – future, but they are not regulatory and not part of any corrective action plan. Have the test procedures been used successfully in the past? What does position mean for this breaker? What does position “test” “test” do to the breaker? STATUS: 2/7/2018 The breaker can be put in a position to actuate the – ‘test’ breaker without closing the breaker into the bus. Is there a standardized troubleshooting procedure? STATUS: 2/7/2018 There is no standard troubleshooting procedure. – Troubleshooting is varied and dependent on the issue one is working on.
Tim Reynolds will follow up with Dean Spratt to know the results of the analysis done for Peer Review process. The HPWG will look at the event to see if there are best practices or lessons learned about coordinating protection between generation and substation. STATUS: 12/06/2017 – Information was shared at the meeting that this was a timing issues where generation personnel changed the relay drawings and failed to notify those in the project in charge of relay coordination before the commissioning. As a preventative measure, the company is putting into place a step to review and verify all future settings match the prints before commissioning. In addition, they will also add an extra step that final prints will be reviewed again for relay settings before it goes live. STATUS: 1/10/2018 – The HPWG will continue analyzing the event for potential lessons learned. October 23, 2017 – Category 1a A high side breaker failed to trip in the required time and generated a bus lockout on a 115-kV bus, causing all breakers connected to the bus to trip and open ending of four 115-kV lines, one reactor, and the connection for a 230-115-kV transformer. AI – Regarding the Oct 23, 2017 – Category 1a event, EPAS members will follow up with the following action item: Tim Reynolds will ask the following questions: Was the incident a miss-step or a flaw in the breaker (slow tripping breaker)? Are there any follow-up actions that are going to take place or procedures that need to be corrected? STATUS: 2/7/2018 – The entity is working on education and HPI tools for the future, but they are not regulatory and not part of any corrective action plan. Have the test procedures been used successfully in the past? What does “test” position mean for this breaker? What does “test” position do to the breaker? STATUS: 2/7/2018 – The breaker can be put in a ‘test’ position to actuate the breaker without closing the breaker into the bus. Is there a standardized troubleshooting procedure? STATUS: 2/7/2018 – There is no standard troubleshooting procedure. Troubleshooting is varied and dependent on the issue one is working on.
2018-02%20EPAS%20Closed%20Door%20Meeting%20Minutes.docx