New Brunswick Opportunities Network #050126M150

NB Power procurement of two 72.5 kV dead-tank vacuum circuit breakers

New Brunswick Power Corporation is seeking two high-voltage circuit breakers for its Fredericton transmission operations. - Government buyer: New Brunswick Power Corporation (NB Power / Énergie NB), Transmission. - Procurement: Two outdoor, three-pole, 72.5 kV dead-tank vacuum circuit breakers, rated 2,000 A continuous current and 31.5 kA short-circuit breaking current. - NB Power material number: 00082844; required standard support frames are specified in STDT-51530-3001-001-TS-A. - Approved-source options named in the RFQ: Siemens Canada Limited (part number 3AV1 BLUE) and Composite Power Group Inc. (part number MAS 7232). - Included equipment and deliverables: Support structures, accessories, integral current transformers, controls, dry-air insulation system, dry air for filling and testing, testing, manuals, and drawings. - Notable requirements: Dry-air insulation and vacuum interrupters; outdoor operation from -40°C to +40°C without tank heaters or capacitors; 60 Hz operation; minimum 60-month warranty from delivery or 66 months after energization, whichever occurs first. - Delivery: One-time delivery to the specified Fredericton location on a DDP basis under Incoterms 2020.

Description

NB Power is seeking quotes for the supply and delivery of outdoor 72.5 kV dead-tank vacuum circuit breakers for transmission in Fredericton, New Brunswick. The listed breaker requirements include 2,000 A continuous current and 31.5 kA short-circuit breaking current, with associated support structures, manuals, drawings, and testing. Bids are due November 23, 2026, at 1:30 PM Atlantic Time and must be emailed to AllTenders@nbpower.com. Amendment 1 adds specification STDT-51530-3001-001-TS-A-01 to the attachments.

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