**Reason for updated solicitation: UPDATED pricing sheet**
Five (5) phase pad-mounted transformers shall have the following voltage ratings:
•112.5 KVA, 208Y/120, 12 kV
•150 KVA, 480Y/277, 12 kV
•300 KVA, 480Y/277, 12 kV
•500 KVA, 480Y/277, 12.47 kV
•750 KVA, 480Y/277, 12 kV
In addition, the five phase pad-mounted transformers shall meet VSFB electrical requirements below:
•All stainless-steel construction (includes tank, cabinet, base, radiators, fasteners, hinges, etc.),stainless-steel grade shall be 304L or 316L (if available).
•"Pentahead" cabinet locking mechanism/device.
•Dead-Front construction (HV-200A load break elbows with shield adapters).
•Externally clamped LV bushings with threaded copper stud for full load current below 2,100.amperes - NEMA spades shall be provided per ANSI hole requirements.
•Radial feed or Loop feed
•Frequency: 60Hz.
•Windings: HV/LV copper
•Mineral Oil-filled (Non-PCB): Type FR-3 Fluid.
•Standard impedance.
•Mild steel high-voltage/low-voltage compartment barriers.
•Cooling fins.
•Proper grounding provisions.
•Dial type gauges for oil temperature, liquid level and pressure/vacuum.
•Bay-O-Net fuses & current-limiting fuses: properly sized - additionally, the transformer shouldbe equipped with three spare fuses.
•Two-position "ON/OFF" load break primary switch
•5-position tap changer: (-5%, -2 ½ %, 0, +2 ½ %, +5%)
•Automatic pressure relief device mounted on the terminal compartment.
•Oil drain valve with sampling device, and an oil-fill/oil-level plug.
•Nameplate and NEMA safety labels: include a "UL Listed" symbol on ratings label andnameplate.
•Compliant with 2016 DOE Efficiency Standard.
•Four (4) lifting lugs.
•Entire exterior of the pad-mount transformer and terminal components shall be painted with aMunsell-Green, outdoor color-finish.
•Guaranteed to have an average coil winding temperature of 65°C rise over an average ambient airtemperature of 30°C when operated at rated voltage and load conditions.
•Provide DGA test to verify conformance to performance requirements as outlined in the latestrevisions of ANSI C57.12.00 and ANSI C57.12.90.
