Topic:"Emergency Response" in M03715

NON-CONFIDENTIAL 1 Request IR-4: 2 3 Please elaborate on the estimated load and the maximum contingency capacity of the 4 Kempt Road substation for the 2010/11 and 2011/12 winter peaks. 5 6 Response IR-4: 7 8 The load and contingency capac...

AI summary NSPI responds to a request for details on Kempt Road substation's 2010/11 and 2011/12 winter peak load and contingency capacity, stating minimal differences between the two periods made data aggregation unnecessary. Transformer loads for three Halifax Peninsula substations are provided in MVA.

NON-CONFIDENTIAL 1 Request IR-11: 2 3 Please describe the use of common spare transformers shared by multiple NSPI's 4 substations. 5 6 Response IR-11: 7 8 For power transformer failure response on NSPI's transmission system, a combination...

AI summary NSPI uses mobile and stationary spare transformers to manage power outages caused by transformer failures. Mobile units are temporarily installed for 15-30 days, replaced by permanent spares once repairs are complete. A specific project at Kempt Road aims to permanently install a spare transformer, though an outage would be required for installation.

NON-CONFIDENTIAL 1 Response IR-28: (cont'd) 2 3  transfer 7 MVA from 104H-T62 onto 104H-T61 4  transfer 10 MVA from 104H-T63 onto 1H Water St (T61 and T62) 5  pick up the remaining 14 MVA on 104H-T62. 6 7 Kempt Road Substation 8 104H-T6...

AI summary NSPI outlines contingency plans for transformer failures at Kempt Road and Water Street substations, detailing MVA load transfers between transformers and substations to maintain power reliability. The proposals address potential failures from February 2010 to September 2010, including short-term mobile transformer usage and redistribution of loads across multiple substations.

IR-1: On page 4 of 20, under "Why do this project now?", NSPI states this project is being advanced at this time to reduce the probability of loss of load due to a transformer failure. Please provide specific information to support the abo...

AI summary NSPI's project aims to reduce transformer failure risks by advancing the work now. The Board requests justification for submitting this as a U&U work order instead of the 2011 ACE Plan and details on the 2010-2011 work schedule. Additional queries focus on substation configurations and contingency capacity.