Topic:"Planned Outage" in M12516

1 Recommendation number 1 is closed. 1 & Labrador. NS Power continues to work with NLH to finalize the associated protocols. 30 were outstanding with Hitachi were closed. 1 Monopole connectivity was maintained throughout the planned outage...

AI summary The document outlines the status of various projects and operations, including the closure of recommendation 1, the maintenance of monopole connectivity during an outage, engagement with an Independent Engineer for the NSPML Maritime Link, and updates on the Muskrat Falls Assets and Labrador Island Link.

f) Forced Outages: • Pole 1 reactor hall emergency exit door limit switch was triggered, resulting in a pole trip. Although the door was closed and latched, it had buckled due to exposure to intense sunlight. Pole 1 was deblocked after the...

AI summary A pole trip occurred at Pole 1 due to a triggered emergency exit door limit switch, which buckled from intense sunlight exposure. The door was closed and latched, but a permanent corrective solution is still pending after the limit switch was readjusted and Pole 1 was deblocked.

5. IE COMMENTS All sites are fully operational and in good order. Planned maintenance activities have been completed, with no reported safety or environmental issues. The 2025 Maintenance Plan is active, and maintenance outages have been s...

AI summary The document highlights the operational status of sites, completion of maintenance activities, and ongoing initiatives related to system performance and infrastructure management. It also mentions the need for vegetation clearance for drone inspections and the issue of corroded ground wires requiring further investigation.

Key accomplishments in 2024 include: - Total ENL exposure hours for staff and contractor were 58,645. Strong safety and environmental performance continued in 2024 with no Significant Injury or Fatality (SIF), lost time safety incidents or...

AI summary Key accomplishments in 2024 include strong safety and environmental performance with no significant incidents, completion of overhead transmission line inspections, execution of HVDC maintenance outages, introduction of a new emergency response policy, and selection of a new PPE vendor.

Maritime Link 2024 Active Power Availability: Monopole: 99.99% Pole 1: 96.97% (3.0% were planned outages, 0.0% forced outages) Pole 2: 97.23% (2.8% were planned outages, 0.01% forced outages) Bi- pole: 94.22%

AI summary The document provides availability percentages for the Maritime Link 2024, including monopole, pole 1, pole 2, and bi-pole, with details on planned and forced outages for each.

2024 Forced Outages and Remedial Actions : • On May 22, 2024, Pole 1 was offline for opportunistic warranty work as NLH transfers were not scheduled. Bi- pole outage occurred during 'Neutral Isolate' switching sequence that was required to...

AI summary On May 22, 2024, Pole 1 was taken offline for warranty work, leading to a bi-pole outage during a 'Neutral Isolate' switching sequence. The outage was caused by a timing algorithm in the switching sequence logic, which triggered a protection trip to both poles. A software change was implemented and tested on May 27, 2024.

Summary Within the framework of ENL maintenance program over 1805 planned maintenance (PM) activities were completed on the HVDC system and over 2600 Transmission Line inspections were carried out. Key activities in 2024 included: - The an...

AI summary In 2024, over 1805 planned maintenance activities were completed on the HVDC system, and over 2600 Transmission Line inspections were carried out. Key activities included the annual HVDC System shutdown in September, completion of overhead and subsea inspections, and maintenance at several AC Substations.

4.8 2025 Planned Maintenance Outages Annual Planned Maintenance Outage Scope: - IGBT inspections and replacement - Annual transformer maintenance - Fire Protection testing/ maintenance - Valve cooling maintenance - Valve cooling pump motor...

AI summary Section 4.8 outlines the scope of 2025 planned maintenance outages, including IGBT inspections, transformer maintenance, fire protection testing, and other equipment maintenance activities.

reported that several outages occurred on the Labrador Island Link between September and October 2025, including an unplanned outage caused by a failed switch at an electrode site on October 7, 2025. The Board notes that the Regulation Ser...

AI summary The Board acknowledges several outages on the Labrador Island Link and warns NSPML of potential disallowances if delays caused unnecessary costs or losses. The Board also highlights the delayed completion of the Regulation Service Agreement and land rights resolution and requests NSPML to detail outstanding legal and land matters in its next report.