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Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Specifications
Place of Origin :
Hunan, China
Brand Name :
HENTG Power
Model Number :
S13
Price :
CN¥12,820.50-14,957.25/sets
Certification :
CE
Frequency :
50Hz, 60Hz
Phase :
Three
Coil Number :
Two Windings, Multi Winding, Three Windings, Single Winding
application :
power transformer
Coil Structure :
Shell-Type Coil, layer coil, fully sealed construction, Disc Coil, round coil
Output Voltage :
220V, 380V
Input Voltage :
11kV, 10.5kV, 3kV, 12.47kV, 6.6kV
Type :
Oil-Immersed Transformer, AUTOTRANSFORMER, Oil Filled Type
Winding Material :
100% Copper/Aluminum
Cooling Method :
ONAN ONAF
Customized :
Accept
Capacity :
250KVA 315KVA
Vector Group :
Dyn11 / Yyn0
Usage :
Power Transformer
Efficiency :
≥98%
Rating Capacity :
30-1600KVA
Installation :
Indoor/Outdoor
Application :
Power transmission
Poles :
3
Second Voktage :
0.4kv
Number Of Phases :
Three Phases
Transformer Type :
S11 Oil-immersed Transformer
Rated Voltage :
6kV-500kV
Installation Method :
Outdoor/Indoor
Noise Level :
≤65dB
MOQ :
2 sets
Description

HENTG POWER Three Phase Outdoor 250KVA 315KVA Oil Tester Step Down Power Distribution Transformer

Our oil-immersed distribution transformers range from 30kVA to 2500kVA, with voltage levels up to 35kV. They are widely used in power utilities, renewable energy, industrial facilities, railway systems, and urban infrastructure. Designed to IEC and ANSI standards, our transformers offer high efficiency, low losses, and long service life, suitable for both indoor and outdoor environments.
PRODUCTS DESCRIPTION

Type S13 oil-immersed distribution transformer is based on the original S11 distribution transformer, through the research and application of new materials and new technologies and the combination of independent innovation and technology introduction, through the optimization and innovative design of the core and coil structure, to reduce the no-load loss and noise purposes. Compared with the current national standard JB/T10088-2004, the noise level decreased by 20% on average, and the product performance level reached the domestic advanced level.
Ideal distribution equipment for urban and rural distribution network centers.
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
OUR ADVANTAGES

The Type S13 oil-immersed distribution transformer widely used in residential areas, commercial centers, industrial parks, and rural electrification projects.. Compared to S9 or S11, the S13 offers several improvements. Here are the key advantages : 1. Higher Energy Efficiency Lower no-load loss: The S13 series uses high-quality silicon steel sheets and optimized magnetic circuit designs, reducing no-load losses by 20–30% compared to S11 models. Lower load loss: Improved winding structure and materials reduce resistance and load losses, improving overall efficiency. 2. Improved Temperature Rise Performance Enhanced oil circulation and cooling systems help maintain stable operation under load.Better thermal management leads to longer insulation life . 3. Reduced Noise Levels Use of high-permeability silicon steel and precision manufacturing lowers magnetostriction, resulting in quieter operation.
4. Robust Mechanical Design Improved short-circuit resistance due to optimized winding structure and clamping. Core and coil assembly is more stable, reducing vibration and mechanical stress. 5. Longer Service Life Better materials and structural improvements lead to extended service life, often reaching 20–30 years under proper conditions.

PRODUCT PARAMENTERS
Rated capacity (KVA)
Vector Group
Voltage Combination


No-load loss
Load loss

No-load current
lmpedance


HV
Tapping range
LV

Dy
Yy


30









Yyn0 / Dyn11








10
6.3
6








±5%

±2X2.5%










0.4
80
630
600
1.5
4.0
50




100
910
870
1.3

63




110
1090
1040
1.2

80




130
1310
1250
1.2

100




150
1580
1500
1.1

125




170
1890
1800
1.1

160




200
2310
2200
1.0

200




240
2730
2600
1.0

250




290
3200
3050
0.9

315




340
3830
3650
0.9

400




410
4520
4300
0.8

500




480
5410
5150
0.8

630




570
6200
6200
0.6
4.5
800




700
7500
7500
0.6

1000




830
10300
10300
0.6

1250




970
12000
12000
0.5

1600




1170
14500
14500
0.5

2000




1360
18300
18300
0.4
5.0
2500




1600
21200
21200
0.4



Step 1:
We will respond to your inquiry within 1 hour and recommend suitable transformer according to your needs. At the same time, we will provide you with reasonable quotations and payment terms.
We have a professional and independent drawing team and technical team, and we will confirm all the contents on the drawing with you within 7 days after payment. The drawing usually contains technical data, weight and parts list. If you have any questions, please click here to consult.
Step 2:
After designing the production drawing, the factory will prepare the stock, produce, and conduct quality inspection before shipment. If you have special accessory requirements, we can provide you with accessories. Our raw materials are strictly screened. In the quality inspection stage, we will provide you with the dual guarantee of QC report and test report to escort your products.
Step 3:
We have a professional team to guide the installation, and also support on-site installation. We will provide you with more than 2 years of warranty service. Welcome to join us and create a win-win situation. Click here to start our business now.

If you have any questions, welcome to click here for discussion !!!
WHY CHOOSE US?
✅ Own Factory, Direct Manufacturer
✅ 24h Quick Quotation
✅ Customization Available
✅ Over 60 Countries Exported
✅ Engineering Support Available

HENTG Power is an ISO9001 certified transformer manufacturer specializing in reliable, high-performance solutions for global power systems since 2011.

With an 100,000 m² factory, over 250 skilled workers, more than 30 senior engineers, and 10+ professional testing engineers, HENTG Power is dedicated to delivering high-quality transformer solutions with strong production capacity 20000 units/year.

Application Scenarios
⚡️Power Distribution Networks
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Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase

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Product Detail
Place of Origin :
Hunan, China
Brand Name :
HENTG Power
Model Number :
S13
Price :
CN¥12,820.50-14,957.25/sets
Certification :
CE
Frequency :
50Hz, 60Hz
Contact Supplier
video
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase
Oil Immersed Type Power Distribution Transformer Outdoor 250KVA 315KVA Three Phase

Hunan Hentg Power Electric Technology Co., Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 2011
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
Oil Immersed Transformer, Dry Type Transformer, Compact Substation Transformer
Total Annual :
50000000-100000000
Employee Number :
200~250
Certification Level :
Verified Supplier
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