24-516 Replace Transformer Specs.pdf

These project specifications detail requirements for replacing a primary transformer at the Canandaigua Veterans Affairs Medical Center (VAMC) in New York. The document provides comprehensive technical specifications for pad-mounted, liquid-filled, medium-voltage transformers, covering aspects such as manufacturer qualifications, factory testing, installation procedures, grounding, accessories, and performance standards. Key technical requirements include three-phase, liquid-immersed transformers with specific energy efficiency ratings, compartment design, surge arresters, and compliance with multiple industry standards including ANSI, IEEE, NEMA, and NFPA.

The specifications outline detailed requirements for transformer construction, including core and coil assemblies, winding configurations, tap changers, accessories like pressure relief valves and liquid level gauges, and minimum energy efficiency values across various transformer sizes ranging from 75 to 2500 kVA. Installation instructions mandate outdoor mounting on a reinforced concrete slab, proper grounding, cable terminations, and comprehensive acceptance checks and tests. The contractor must also provide maintenance instruction for personnel and deliver specified spare parts, with the overall project objective of replacing a damaged 5 MVA transformer while maintaining electrical system integrity and operational continuity at the VA medical center.