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Space-Saver 3™ is a three-phase pad-mounted transformer housed in a minimum profile enclosure. It is designed for applications requiring three-phase service in a small, unobtrusive package and is the ideal choice for small commercial loads. The design is easier to handle, install and maintain. Its removable flip-up hood allows easy access to the terminal compartment.
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| Ratings |
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• KVA Ratings (65° Rise, ONAN)
30, 45, 75, 112.5, 150
• High-Voltage Ratings (Delta or Wye)
2400 through 34500 (through 150 kV BIL)
• Low-Voltage Ratings (Delta or Wye)
120 through 480 (through 30 kV BIL)
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| Standard Features |
• Meets or exceeds current ANSI standards except for certain
dimensional characteristics
• Full compliance with ANSI C57.12.28 enclosure integrity standards
• Externally clamped universal high-voltage bushing wells for
dead front applications (three for radial feed operation
or six for loop feed operation)
• Externally clamped low-voltage bushings with threaded stud for full-load
current through 1400 Amps, or externally clamped one-piece
NEMA spade bushings for full-load current above 1400 Amps
• Front panel accessory mounting brackets
• Removable neutral ground strap in low-voltage compartment
(for wye connected low-voltage ratings only)
• Lifting provisions
• Removable hood with stainless steel hinge pins and barrels
• Removable sill with stainless steel fasteners
• Recessed hood latching system with captive pentahead security bolt,
floating nut and interlocking padlock provision
• Tank ground provisions
• Mild steel tank and terminal compartment
• Insulated high-voltage/low-voltage compartment barrier
• Domed top surfaces on tank and terminal compartment to prevent water retention
• Recessed tank compartment bottom
• Electrostatically applied powder paint finish with olive-green
polyurethane top coat (Munsell 7GY 3.29/1.5) provides
excellent resistance to chipping, fading, abrasion, and corrosion
• Oil fill/oil level plug
• Automatic pressure relief device mounted in terminal compartment
• Electrical grade mineral oil insulation fluid with oxidation inhibitor
• Laser engraved anodized aluminum nameplate
• Decal bushing designations
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| Optional Features |
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• Loadbreak high-voltage bushing inserts or externally clamped integral
(one piece) high-voltage bushings
• Low-voltage connectors, including various screw-on or slip-on types
• Externally operable non-loadbreak high-voltage tap switch with one
of the following tap ranges: four 2.5% taps above normal;
or four 2.5% taps below normal;
or two 2.5% taps above and two 2.5% taps below normal;
or taps at 13800/13200/12870/ 12540 for transformers with a nominal
high-voltage rating of 14400 (not available in combination with
dual high-voltage switch)
• Externally operable dual high-voltage switch (not available in
combination with high-voltage tap switch)
• Fault indicators or fault indicator mounting provisions only
• Internal expulsion fuses, alone or in combination with internal
backup current limiting fuses
• Draw-out expulsion fuses with isolation links, alone or in
combination with internal backup current limiting fuses
• MOV surge arresters, including under-oil or elbow types
• Drip shields for use with draw-out expulsion fuses
• Externally operable two-position or four-position high-voltage loadbreak switch
• Drain valve with sampling device
• Total stainless steel or hybrid (mild steel/ stainless steel) construction
• Temporary access service provision (conduit hole)
• Hexhead security bolt (pentahead standard)
• Beta, Silicone or seedbased vegetable oil insulation fluid
• Tank ground connectors
• Laser engraved stainless steel nameplate (aluminum standard)
• Custom stenciling or labeling
• NEMA safety labels
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