Topic:"Distribution" in M03415

Why do this project? The load on the 69kV system in the Annapolis Valley has increased to a level where a loss of selected elements (138kV line or 138-69kV transformer) in the area, under peak load conditions, causes the voltage on the 69k...

AI summary The project is necessary due to increased load on the 69kV system in the Annapolis Valley, which risks voltage drops below acceptable levels during peak conditions. The solution involves adding a new 138kV line and a 138kV-69kV autotransformer at the 51 V-Tremont Substation to ensure reliability.

Why do this project now? The 2010/11 peak load on the 69kV system in the Annapolis Valley is forecasted to reach levels such that failure of some source elements (138kV line or 138-69kV transformer) during peak load conditions causes the v...

AI summary The 2010/11 peak load on the 69kV system in the Annapolis Valley is expected to reach levels where the failure of certain components could lead to voltage drops and potential outages.

Primary Equipment RFP Evaluation - Air Switches DDP Includes preassembly @ $400/switch 145kV only, Insulators SUZHOU, includes 2% discount for complete purchase 7 Years (84 mos from DDP or 78 mos from end of commissioning date) 85% upon de...

AI summary The document presents an evaluation of primary equipment requests for proposals (RFP) for air switches, including details on delivery terms, warranties, payment conditions, quality assurance, and site supervision. It includes specifications such as current and voltage ratings, locations, and quantities for various switch types.

NON-CONFIDENTIAL 1 Request IR-2: 14 40 MVA rating is the 55 degree Celsius rating of the transformer with some fans 15 operating. The 50 MVA rating of the transformer is the 55 degree Celsius rating of the 16 transformer with all fans oper...

AI summary The text discusses transformer ratings and overload conditions for two transformers at Canaan Road during a contingency scenario. It outlines the ratings under different operating conditions and provides the MVA ratings of the transformers involved in the 2010 peak period.

Issued at Halifax, Nova Scotia, this 8th day of November, 2010. 1 following The for IRs are CI#38819 - 51V Tremont Circuit Breaker and Bus IR-1:

AI summary The document is a regulatory proceeding from Nova Scotia issued on November 8, 2010. It includes a table with technical details related to a circuit breaker and bus, and references a document labeled 'CI#38819'.

IR-5: - Reference Response to ACE Plan IR-T2, Attachment 1, page 4 of 35 - a) NSPI proposes to establish a 138 KV ring bus? What is the incremental cost to establish a ring bus? - b) Please describe more fully the reasons for establishing...

AI summary The document contains a series of questions posed by the regulatory body regarding proposed electrical infrastructure changes by NSPI, including the establishment of a 138 KV ring bus, reconfiguration of a 69 KV bus, and an alternative transmission route, focusing on costs and reliability impacts.