Topic:"Hearing Procedures" in M03715

NON-CONFIDENTIAL 1 Response IR-4: (cont'd) 2 3 If NSPI were to lose the most heavily loaded of the 3 transformers at 104H Kempt Road, NSPI 4 could do the following transfers of load: 5 6  transfer 20 MVA on a short-term basis onto the mob...

AI summary NSPI outlines contingency plans for handling transformer failures at the Kempt Road substation, detailing load transfers between transformers and mobile units. The response includes specific MVA redistribution strategies for single and dual transformer outages, ensuring continued service under emergency conditions.

CONFIDENTIAL (Attachment Only) 1 Request IR-24: 2 3 With reference to the response to IR-12, please provide a copy of the analysis (review) 4 mentioned in the response, as well as copies of any updated studies. 5 6 Response IR-24: 7 8 Plea...

AI summary NSPI responds to IR-24 by referencing Confidential Attachment 1, noting transformers removed from their system are marked with an 'X'. They are updating the report and anticipate filing it with the Board in April 2011.

IR-15: On page 4 of 20 of the submission it is stated that the two recent transformer failures occurred on July 5, 2009, and September 4, 2010. According to page 4 of 5 of the CI# 39723 submission, 104-T63 Transformer Refurbishment, this u...

AI summary The text requests clarification regarding discrepancies in dates related to transformer failures (July 2009, September 2010) and damage from a February 2010 storm, as noted in submission pages and CI# 39723.

IR-22: With reference to the response to IR-10: - a) NSPI states that the winding configuration of the spare transformer located in Onslow is such that it cannot be paralleled with the existing units without taking an outage. Please furthe...

AI summary IR-22 requests clarification from NSPI on the winding configuration of a spare transformer in Onslow, specifically why it cannot be paralleled without an outage and the required duration. It also asks if NSPI plans to acquire an additional mobile transformer, including availability and rating details.

IR-23: With reference to the response to IR-11, please explain why a spare transformer available for the Kempt Road Substation, as noted in the response to IR-10, is not a lower cost option than purchasing a new transformer?

AI summary The inquiry asks why a spare transformer at Kempt Road Substation, referenced in prior responses (IR-10 and IR-11), is not a lower-cost alternative to purchasing a new transformer. The analysis focuses on cost comparisons between utilizing existing equipment versus acquiring new infrastructure.

IR-24: With reference to the response to IR-12, please provide a copy of the analysis (review) mentioned in the response, as well as copies of any updated studies.

AI summary The text is a request under IR-24 for a copy of an analysis mentioned in the response to IR-12 and any updated studies. It references a prior response and seeks additional documentation.

IR-25: With reference to the response to IR-13, please identify this external company and explain any affiliation with NSPI.

AI summary The document requests identification of an external company referenced in response to IR-13 and clarification of its relationship with NSPI. It seeks to establish potential affiliations between the external entity and Nova Scotia Power Inc.