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| Price | $5000-$10000 |
| MOQ | 1unit |
| Delivery Time | 30days |
| Brand | WINLEY |
| Place of Origin | CHINA |
| Certification | UL/cUL,CE,ISO |
| Model Number | ZGS-2550/12.87 |
| Packaging Details | Plywood case |
| Payment Terms | T/T |
| Supply Ability | 1000set/month |
| Place of Origin | CHINA | Packaging Details | Plywood case |
| Standard | ANSI C57.12.34 | Secondary Voltage | 480V |
| Model Number | ZGS-2550/12.87 | Supply Ability | 1000set/month |
| Certification | UL/cUL,CE,ISO | Brand Name | WINLEY |
| Payment Terms | T/T | Type | Pad mounted, Radial feed |
| Tapping range | 14400V, 13800V, 13200V, 12870V, 12470V, 12000V, 11500V | Vector group | YNd1 |
| Price | $5000-$10000 | Delivery Time | 30days |
| Capacity | 2550kVA | Minimum Order Quantity | 1unit |
| Cooling Class | ONAN; Self-Cooled | Primary Voltage | 12870V |
2550kVA Three Phase Pad Mounted Transformer Radial Feed 12.87KV To 480V ANSI C57 Standards UL Listed
This 2550 kVA three-phase pad-mounted step-down transformer is designed for radial feed distribution networks, widely applied in commercial, industrial and outdoor utility power supply projects. Built in compliance with ANSI C57.12.34 standard, it adopts ONAN cooling, aluminum windings and NEMA 3R enclosure, with complete standard accessories and stable electrical performance. As a certified manufacturer, Winley Electric holds UL certification, guaranteeing full safety compliance and reliable operation for North American market applications.
As a professional manufacturer with advanced production lines, Winley Electric boasts strong mass production capacity, enabling us to deliver high-quality transformers in large quantities while ensuring consistent product performance and on-time delivery. Our standardized production processes, strict quality control systems, and mature supply chain management allow us to meet the bulk order needs of global clients, reducing lead times and providing cost-effective solutions without compromising quality.
Main data
The transformer supports both radial and loop feed arrangements, with HV terminals available in dead and live front types. The HV BIL ranges from 45 – 150 kV for dead front and 200 kV for live front, while the LV BIL is 30 – 60 kV, fully meeting the insulation and voltage resistance requirements of different application scenarios. The control cabinet is divided into a high-voltage room and a low-voltage room, separated by a rigid steel partition for clear functional division and enhanced safety. It is equipped with a three-point latching system for the low-voltage door, and the high-voltage door can only be opened after the low-voltage door is opened, effectively ensuring operational safety.
| specification data | |||||
| No. | Particulars | Unit | Specification | Remark | |
| 1 | Type | ~ | pad mounted, radial feed | step down | |
| 2 | Rated capacity | kVA | 2550 | ||
| 3 | No. of Phase | ~ | 3 phases | ||
| 4 | Primary voltage | V | 12870 | Wye-N | |
| 5 | Secondary voltage | V | 480 | delta | |
| Secondary buhsing | ~ | (3) BIL30kV 10-hole NEMA spade | live front | ||
| 6 | Tapping type | ~ | off-circuit | ||
| 7 | Tapping range | V | 14400, 13800, 13200, 12870, 12470, 12000, 11500 | ||
| 8 | Cooling method | ~ | ONAN | ||
| 9 | Rated frequency | Hz | 60 | ||
| 10 | Vector group | ~ | YNd1 | ||
| 11 | Insulation class | ~ | A | ||
| 12 | Temperature rise | ℃ | 65 | ||
| 13 | Off-load loss | W | 2500 | ±10% tolerance | |
| 14 | On-load loss (85℃) | W | 24500 | ||
| 15 | Impedance | % | 5.75~6.75 | ||
| 16 | Winding material | ~ | Aluminum | ||
| 17 | Core material | ~ | silicon steel | ||
| 18 | Cooling material | ~ | Mineral oil | ||
| 19 | Tank&enclosure | ~ | NEMA 3R (green) | ||
| 20 | Dimension | inch | 75*93*75 | for reference only | |
| 21 | Weight | lbs | 12556 | ||
| 22 | Service condition | ~ | indoor or outdoor | ||
| 23 | Sea level | M | ≤1000 | ||
| 24 | Standard | ~ | ANSI C57.12.34 | ||
Technical drawings
1)The
transformer
part
and
the
control
cabinet
part
of
the
United
States
variation,
of
which
the
transformer
part
is
a
fully
sealed
structure,
and
the
insulating
oil
can
be
two
types
of
high
ignition
point
oil
or
ordinary
oil.
2)The
control
cabinet
is
divided
into
a
high-voltage
room
and
a
low-voltage
room.
3)The
high-voltage
room
is
equipped
with:
high-voltage
cable
plug,
lightning
arrester,
load
switch
operating
handle,
non-excitation
tap
switch
handle,
plug-in
fuse,
pressure
release
valve,
thermometer,
pressure
gauge,
oil
Position
gauges,
oil
filling
plugs,
oil
drain
valves,
etc.,
load
switches,
off-excitation
tap
changers,
plug-in
fuses,
etc.
are
all
immersed
in
transformer
oil
together
with
the
transformer
core.
The
high-voltage
cable
and
the
transformer
are
connected
by
elbow
cable
connectors.
4)The
low-voltage
side
can
be
installed
with
air
circuit
breakers,
current
transformers,
as
well
as
electric
energy
meters,
ammeters
and
voltmeters,
and
output
circuits
and
capacitance
compensation
devices
can
be
configured
according
to
user
needs.
Production process
Winley Electric’s three-phase pad-mounted transformer stands out for its reliable performance, standardized production, and customer-centric design. Backed by our strong mass production capabilities and strict quality assurance, we are committed to providing durable, efficient, and cost-effective power distribution solutions to support your projects.
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 24940GrdY/14400 1247Grdy/7200 4160GrdY/2400 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 | ||
| 3735KVA | 4125 | 37875 | 2680 | 2060 | 4080 | 14400 | 31746 |
Production process
FAQ
1. Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
2. Q: What is the lead time?
A: Mass production time 15-25 days.
3. Q: How long is the warranty?
A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.
4. Q: Is OEM/ODM available?
A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.
Customized services:
a. Customized color and special function.
b. Customized box.
c. Print customer's logo.
d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.
5. Q: How to control the products quality?
A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.
