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300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/120V ANSI/IEEE Standards Dd0 Oil Type Transformer
| Merknaam: | WINLEY |
| Modelnummer: | ZGS-300/15 |
| MOQ: | 1 eenheid |
| Prijs: | $5000-$150000 |
| Verpakking: | Multiplex behuizing |
| Betalingsvoorwaarden: | T/T |
Product Photo
Why choose us
WINLEY offers a full range of three-phase pad-mounted transformers with capacities from 45kVA to 5500kVA and voltages up to 34.5kV. Our products fully comply with and even exceed international standards including DOE 2016, IEEE/ANSI, CSA, IEC, and NEMA.
All WINLEY three-phase pad-mounted transformers are UL/cUL certified (Certificate No.: UL-US-2431836-0, UL-CA-2423202-0). We can also provide UL certification via partner authorization to meet your specific project requirements.
Our products are widely exported to North America, South America, the Philippines, and other regions. Backed by extensive design and manufacturing experience, professional after-sales support, and efficient production, we guarantee fast delivery within 7–35 days.
Main Data
| Transformer Type: | Pad Mounted, Compartmental-Type |
| Phase: | Three Phase |
| Capacity: | 300 kVA |
| Vector Group: | Dd0 |
| Primary Voltage: | 13200V |
| Primary BIL: | 125 KV |
|
Secondary Voltage: |
240V/120 |
| Secondary BIL | 30 KV |
| Frequency: | 60 Hz |
| Temperature Rise: | 65°C |
| Cooling Class: | ONAN; Self-Cooled |
| Efficiency Standard(s): | Meets DOE 2016 Standards, Meets ANSI/IEEE Standards |
| Winding Material: | Copper |
Technical Drawings
Specification
| Rated Power (KVA) |
High Voltage (KV) |
Low Voltage (V) |
No-load Loss (W) |
On-load Loss (W) |
Height (mm) |
Depth (mm) |
Width (mm) |
Weight (kg) |
Weight (Lbs) |
| 75KVA | 34.5KV 4.160KV 12.47KV 13.2KV 13.8KV 24.94GrdY/14.4 12.47Grdy/7.2 4.16GrdY/2.4 or others |
277V 347V 480V 600V 120/240V 208GrdY/120 415GrdY/240 480GrdY/277 600Y/347 |
180 | 1250 | 1430 | 910 | 1930 | 645 | 1422 |
| 150KVA | 280 | 2200 | 1530 | 980 | 1510 | 989 | 2180 | ||
| 300KVA | 480 | 3650 | 1680 | 1080 | 1660 | 1415 | 3119 | ||
| 500KVA | 680 | 5100 | 1790 | 1160 | 1810 | 1905 | 4200 | ||
| 750KVA | 980 | 7500 | 2030 | 1300 | 2030 | 2755 | 6074 | ||
| 1000KVA | 1150 | 10300 | 1854 | 1549 | 1651 | 3235 | 7132 | ||
| 1500KVA | 1640 | 14500 | 2150 | 1570 | 2210 | 5835 | 12864 | ||
| 2000KVA | 2160 | 20645 | 2220 | 1600 | 2380 | 6430 | 14175 | ||
| 2500KVA | 2680 | 23786 | 2330 | 1650 | 3070 | 8865 | 19544 | ||
| 3000KVA | 3300 | 30300 | 2460 | 1850 | 3260 | 11300 | 24912 | ||
| 3750KVA | 4125 | 37875 | 2680 | 2060 | 4080 | 14400 | 31746 |
Features
300kVA High-Capacity Dd0 Transformer
Three-phase pad-mounted design with Dd0 vector group, stepping down 13200V Delta primary to 240/120V Delta secondary with center tap, ideal for North American 120/240V dual-voltage distribution.
Full North American Compliance
UL/cUL certified, fully meeting ANSI/IEEE, DOE 2016 efficiency, and CSA standards for utility-grade safety and performance validation.
Robust Compartmental-Type Construction
Liquid-filled, loop-feed, dead-front pad-mounted design with NEMA 3R weatherproof rating, built to withstand harsh outdoor environments.
Reliable ONAN Self-Cooling System
ONAN (Oil Natural Air Natural) self-cooling eliminates external fans, reducing maintenance costs and operating noise for long-term outdoor use.
Precise Voltage Regulation
5-position de-energized tap changer (2.5% tap range) for easy on-site voltage adjustment, optimizing performance across varying load conditions.
Comprehensive Protection System
Factory-integrated 18kV surge arrestors and bayonet fuses provide reliable overcurrent and lightning protection for grid safety.
Premium Copper Windings
High-purity copper windings with Dd0 connection ensure low loss, high efficiency, and stable power transmission for heavy-load applications.
Non-PCB Mineral Oil Insulation
Environmentally friendly non-PCB mineral oil delivers excellent thermal stability, fire resistance, and long service life.
Application
This 300kVA three-phase pad-mounted transformer with Dd0 vector group is engineered for reliable outdoor power distribution in North American utility, commercial, and industrial systems. Typical applications include:
Residential & Multi-Family Developments: Suburban neighborhoods, apartment complexes, and housing communities requiring 120/240V dual-voltage power.
Commercial Facilities: Small retail centers, strip malls, office buildings, and restaurants with mixed 120V lighting and 240V equipment loads.
Industrial Operations: Light manufacturing, workshops, and processing facilities with 240V three-phase equipment and 120V auxiliary power needs.
Utility Distribution Networks: Loop-feed overhead/underground distribution systems, rural electrification projects, and grid modernization upgrades.
Specialized Infrastructure: Telecommunication sites, data centers, and remote power stations requiring stable 120/240V dual-voltage supply.
Renewable Energy Systems: Solar and wind energy microgrids, where Dd0 zero-phase-difference connection ensures seamless grid integration.
Production process
