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225kVA Three Phase Dry Type Transformer 4160V to 480Y/277V Outdoor NEMA 3R DOE2016 Efficiency
| Markenbezeichnung: | WINLEY |
| Modellnummer: | SG-225KVA |
| Mindestbestellmenge: | 1Einheit |
| Preis: | $1000-$100000 |
| Verpackungsdetails: | Sperrholzkiste |
| Zahlungsbedingungen: | T/T |
Product Overview
For commercial buildings, light industrial facilities, utility customer service points, and outdoor distribution systems, this 225kVA three-phase dry-type transformer is configured to convert 4160V to 480Y/277V for reliable low-voltage power distribution.
The transformer is designed as an outdoor dry-type unit with NEMA Type 3R heavy-duty ventilated enclosure, 60Hz operation, D/Y vector group, copper windings, AN air cooling, 150°C temperature rise, and 220°C insulation class. Its ±5% primary tap arrangement helps match site voltage conditions, while the 480Y/277V secondary output supports both three-phase power loads and 277V lighting or auxiliary circuits. This configuration makes the unit suitable for specification review, replacement projects, and new power distribution installations requiring a compact outdoor dry-type solution.
Product Photos
Main Data
| Item | Data |
|---|---|
| Product type | Three-phase dry-type transformer |
| Rated capacity | 225kVA |
| Phase | 3 Phase |
| Primary voltage | 4160V |
| Secondary voltage | 480Y/277V |
| Frequency | 60Hz |
| Vector group | D/Y |
| Cooling method | AN |
| Winding material | Copper |
| Insulation class | 220°C / Class C |
| Temperature rise | 150°C |
| Impedance | 4.02% |
| Dimensions | 51.18 × 29.53 × 62.99 in |
| Weight | 2046 lbs |
Technical drawings
Standard Features
-
NEMA Type 3R Heavy Duty Ventilated Enclosure
Supports outdoor installation while allowing natural ventilation for dry-type transformer heat dissipation. -
H1, H2, H3 Primary Terminals
Provide clear primary-side connection points for the 4160V input, helping installers complete wiring and inspection more efficiently. -
X1, X2, X3, X0 Secondary Terminals
Support 480Y/277V secondary output connection, including neutral point access for distribution systems requiring 277V line-to-neutral loads. -
Primary Tap Terminals: +5%, +2.5%, Nominal, -2.5%, -5%
Allow the transformer to match site voltage conditions through 4160V tap adjustment, supporting more flexible project commissioning. -
PE Terminal
Provides a dedicated protective earth connection point for safer installation and grounding arrangement. -
M10 Grounding Bolt
Offers a mechanical grounding connection point for bonding the transformer frame/enclosure to the site grounding system. -
Copper Windings
Support stable current carrying performance, good conductivity, and mechanical strength for long-term distribution operation. -
Nameplate with Ratings and Wiring Information
Displays key data such as 225kVA capacity, 4160V to 480Y/277V voltage, impedance, frequency, insulation class, tap positions, and wiring diagram for specification verification.
| Sector | Suitable applications |
|---|---|
| Commercial power supply | Office buildings, retail centers, warehouses, schools |
| Light industrial facilities | Small manufacturing plants, workshops, process support loads |
| Utility customer service points | Customer-owned distribution points, service entrance power conversion |
| Outdoor distribution networks | Outdoor enclosed transformer installations |
| Infrastructure auxiliary power | Pump stations, facility auxiliary systems, site power panels |
| Model (kVA) | Primary Voltage | Secondary Voltage | Coupling Group | Shape Dimension | Mounting Dimension | Box Dimension |
|---|---|---|---|---|---|---|
| SG-10KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 360×180×305 | 215×140 | 450×360×480 |
| SG-15KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 360×200×335 | 215×155 | 450×360×480 |
| SG-20KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 420×210×350 | 250×170 | 490×400×540 |
| SG-30KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 420×230×380 | 250×190 | 490×400×540 |
| SG-50KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 680×350×550 | 420×220 | 800×510×840 |
| SG-80KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 750×400×620 | 480×250 | 850×510×840 |
| SG-100KVA | 660/400/380/200 | 380/220/110/36 | Yyn0/Y/d/D/y/D/d | 780×420×650 | 500×250 | 900×550×890 |
