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300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer
Подробная информация
Место происхождения:
Китай
Сертификация:
UL/cUL,CE,ISO
Тип:
На подставке, отсекового типа
Конфигурация:
Наполненная жидкостью подушка установлена
№ фазы:
Трехфазный
Первичное напряжение:
12470 В
вторичное напряжение:
480Y/277
Класс охлаждения:
КНАН; Самоохлаждающийся
Эффективность:
99,00%
Материал:
Медь
Стандарты:
Соответствует стандартам DOE 2016, соответствует стандартам CSA. Соответствует стандартам ANSI/IEEE.
Первичный BIL:
95 кВ
Вторичный BIL:
30 KV
Частота:
60 Гц
Время доставки:
30 дней
Поставка способности:
1000 комплектов/месяц
Описание продукта

300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards UL/cUL Listed


Winley Electric 300kVA three-phase pad-mounted transformer is UL/cUL certified, engineered to meet ANSI/IEEE and DOE 2016 efficiency standards for reliable commercial and industrial power distribution in North America.

This liquid-filled, compartmental-type unit steps down 12470V delta primary voltage to 480Y/277V wye-N secondary power, featuring a 5-position tap changer, KNAN self-cooling, and high-purity copper windings. Equipped with integrated 18kV surge arrestors and non-PCB mineral oil insulation, it delivers durable, low-maintenance performance for heavy-load applications.



Product Photo


300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 0

300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 1

300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 2  300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 3

300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 4

300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 5


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.

300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 6

Main Data


Transformer Type: Pad Mounted, Compartmental-Type
Phase: Three Phase
Capacity: 300 MVA 
Vector Group: Dyn1
Primary Voltage: 12470 V
Primary BIL: 95 KV

Secondary Voltage:

 480Y/277
Secondary BIL 30 KV
Frequency: 60 Hz
Temperature Rise: 65°C
Cooling Class: KNAN; Self-Cooled
Efficiency Standard(s): Meets DOE 2016 Standards, Meets CSA Standards Meets ANSI/IEEE Standards
Winding Material: Copper
Efficiency %: 99%
No Load Loss (in watts)): +/- 500W
Full Load Loss (in watts) at 100%: +/- 3,000W


Technical Drawings


300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 7


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 Power Distribution

Three-phase pad-mounted design steps down 12470V Delta primary to 480Y/277V Wye-N secondary, ideal for medium-to-heavy commercial and industrial applications.

Full North American Compliance

UL/cUL certified, fully meeting ANSI/IEEE standards, DOE 2016 efficiency, and NEMA 3R weatherproof requirements for utility-grade safety.

Robust Compartmental-Type Construction

Liquid-filled, dead-front pad-mounted design with radial feed capability, built to withstand harsh outdoor environmental conditions.

Efficient KNAN Self-Cooling

KNAN (Self-Cooled) cooling system eliminates the need for external fans, reducing maintenance costs and operating noise in industrial environments.

Precise Voltage Regulation

5-position tap changer (2.5% tap range) with external operating handle for easy field adjustment, optimizing voltage across varying load conditions.

Superior Surge Protection

Factory-fitted 18kV Class surge arrestors provide reliable protection against lightning strikes and voltage surges in overhead grid systems.

High-Efficiency Copper Windings

High-purity copper windings with Dyn11 vector group guarantee low no-load loss, high efficiency, and stable power transmission.

Reliable Insulation System

Non-PCB mineral oil insulation ensures excellent thermal stability, fire resistance, and long-term service life in demanding outdoor applications.


Application


This 300kVA three-phase pad-mounted transformer is specifically designed for reliable outdoor power distribution in North American commercial, industrial, and utility sectors. Typical applications include:
  • Commercial Buildings: Shopping malls, department stores, office complexes, hotels, and large retail centers.
  • Industrial Facilities: Manufacturing plants, automotive assembly lines, food processing warehouses, and data centers.
  • Utility Infrastructure: Substations, underground distribution networks, and large-scale land development projects.
  • Municipal Projects: Schools, hospitals, government facilities, street lighting systems, and public utility installations.
  • High-Load Construction: Temporary power supplies for large construction sites and permanent electrical systems for mid-rise buildings.



Production process


300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 8


300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 9



300kVA Three Phase Pad Mounted Transformer 12470V Delta To 480Y/277V ANSI/IEEE Standards Oil Type Transformer 10