Xiamen Winley Electric Co.,Ltd
| Supply Ability | 500set/month |
| Standard | ANSI/IEEE |
| Type | Dry type, Cast Resin Transformer |
| Phase | Three Phase |
| Delivery Time | 30days |
| Secondary Voltage | 480Y/277V |
| Payment Terms | T/T |
| Temperature Rise | 80K |
| Cooling Class | AN |
| Capacity | 500kVA |
| Primary Voltage | 12470Y/7200V |
| Packaging Details | Plywood case |
| Brand Name | WINLEY |
| Model Number | SCB-500/12.47 |
| Certification | CE ISO |
| Place of Origin | CHINA |
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Product Specification
| Supply Ability | 500set/month | Standard | ANSI/IEEE |
| Type | Dry type, Cast Resin Transformer | Phase | Three Phase |
| Delivery Time | 30days | Secondary Voltage | 480Y/277V |
| Payment Terms | T/T | Temperature Rise | 80K |
| Cooling Class | AN | Capacity | 500kVA |
| Primary Voltage | 12470Y/7200V | Packaging Details | Plywood case |
| Brand Name | WINLEY | Model Number | SCB-500/12.47 |
| Certification | CE ISO | Place of Origin | CHINA |
| High Light | 500kVA cast resin dry type transformer ，NEMA 3R distribution transformer ，ANSI/IEEE standard cast coil transformer | ||
Product Overview
This 500kVA dry type distribution transformer is suitable for commercial buildings, utility distribution points, industrial service entrances, and outdoor electrical equipment areas requiring 480Y/277V power from a 12.47kV distribution feeder. It is configured as a cast resin dry-type transformer with 12470Y/7200V primary voltage to 480Y/277V secondary voltage, three-phase YNyn0 connection, AN cooling, and pad/floor mounting inside a NEMA 3R weatherproof coated steel enclosure.
The 95kV HV BIL, 30kV LV BIL, Class F insulation, 80°C temperature rise, 5-position HV tap adjustment, terminal lug connections, space heaters with humidistat control, and electronic temperature monitoring system help match common North American project specifications. For inquiry or specification review, buyers can confirm site voltage, kVA, enclosure requirement, tap range, standards, accessories, and destination port.
Why Choose US
1. Winley Electric manufactures cast resin transformers up to 10 MVA and 35 kV, designed in accordance with applicable ANSI/IEEE, AS 60076, IEC 60076 and related dry-type transformer standards.
2. Winley Electric cast resin transformers are engineered for demanding applications, offering high overload capability, low maintenance needs, strong mechanical strength, and reliable short-circuit withstand performance.
3. Winley Electric has extensive experience in cast resin transformer projects and can tailor product designs for solar PV, data centers, and other applications, including dual-split winding designs, multi-tap designs, and other customized electrical configurations.
Product Photos
Main Data
| Item | Data |
|---|---|
| Product type | Cast Resin Dry Type Distribution Transformer |
| Rated capacity | 500kVA |
| Phase | 3 Phase |
| Primary voltage | 12470Y/7200V |
| Secondary voltage | 480Y/277V |
| Frequency | 60Hz |
| Vector group | YNyn0 |
| Cooling method | AN |
| Insulation class | Class F, 155°C |
| Temperature rise | 80°C |
| Winding material | Aluminum |
| Impedance | 7.65% |
| No-load loss | 913W |
| Load loss | 4951W 120°C |
| Efficiency | 99.10% |
| Ambient temperature rating | 40°C |
| Sound level | 56 dBA |
| Elevation rating | 3300ft / 1000m above sea level |
| Dimensions | 75L × 59W × 83H in |
| Weight | 5070 lbs |
Technical drawings
Electronic temperature controller
Equipped with a BWD-3K130A dry transformer microcomputer controller for winding temperature monitoring, fan control interface, alarm indication, over-temperature indication, fault signal, and power cut signal.
Winding temperature sensors
Temperature sensor wiring is provided for monitoring transformer winding temperature and supporting alarm or trip signal output through the controller.
Humidity and temperature sensors inside the enclosure
The enclosure includes humidity and temperature sensors to support environmental monitoring inside the cabinet, especially for outdoor or variable-humidity installation conditions.
Space heater with humidity/temperature control
An aluminum alloy space heater is installed inside the enclosure and works with humidity/temperature control to help reduce internal moisture accumulation.
240V auxiliary transformer
A 240V auxiliary transformer is included to support internal control power supply requirements for enclosure accessories and monitoring devices.
Alarm light for operating status indication
A red alarm indicator light is installed inside the enclosure, supporting visible status indication for alarm, over-temperature, or control-related signals.
Door-open signal interface
The controller wiring area includes a door-open signal interface, supporting cabinet status monitoring when required by the project.
Alarm, fault, fan and power cut terminals
The temperature controller provides terminals for alarm, fault, fan, and power cut functions, allowing integration with transformer protection or monitoring circuits.
| Sector | Suitable applications |
|---|---|
| Utility distribution | Local distribution points, service transformers, 12.47kV feeder step-down points |
| Commercial buildings | Office buildings, retail centers, schools, campuses, facility service rooms |
| Light industrial facilities | Workshops, process support areas, equipment panels, auxiliary power systems |
| Outdoor electrical equipment areas | Pad-mounted or floor-mounted transformer installations in protected outdoor equipment zones |
| Infrastructure projects | Water treatment sites, pumping stations, municipal facilities, transportation support power |
| Renewable or energy support facilities | Site auxiliary power, control buildings, monitoring systems, balance-of-plant loads |
|
Rated capacity |
High Voltage |
Low |
Connection Symbol |
No-Load Loss |
On-Load Loss |
No Load Current |
Weight |
Dimension L*W*H(mm)
|
|
100 |
6 6.3 10 10.5 11 |
0.4 |
Dyn11 |
540 |
1990 |
2.4 |
520 |
1600*1300*2200 |
|
315 |
970 |
4080 |
1.8 |
1085 |
1800*1350*2200 |
|||
|
500 |
1350 |
5790 |
1.8 |
1520 |
2000*1400*2200 |
|||
|
630 |
1530 |
6840 |
1.6 |
1820 |
2000*1400*2200 |
|||
|
1000 |
2070 |
9780 |
1.4 |
2550 |
2450*1450*2200 |
|||
|
1250 |
2380 |
11500 |
1.4 |
2900 |
2300*1500*2200 |
|||
|
1600 |
2790 |
13800 |
1.4 |
3490 |
2400*1550*2200 |
|||
|
2000 |
3240 |
16300 |
1.2 |
4220 |
2600*1600*2200 |
|||
|
2500 |
3870 |
19300 |
1.2 |
4955 |
2600*1600*2200 |
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2007
Total Annual:
$45M-$60M
Employee Number:
150~210
Ecer Certification：
Verified Supplier
R&D and production capabilities Winley Electric boasts a team of dozens of experienced senior engineers who are well-versed in transformer standards of different countries including ANSI, IEEE, CSA, DOE2016, NEMA and IEC60076, and who can tailor cost-effective transformer solutions ... R&D and production capabilities Winley Electric boasts a team of dozens of experienced senior engineers who are well-versed in transformer standards of different countries including ANSI, IEEE, CSA, DOE2016, NEMA and IEC60076, and who can tailor cost-effective transformer solutions ...
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