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Home > products > Oil Immersed Transformer >
Factory Direct Sale Three Phase Step Down High Voltage Transformers 400KVA 500KVA 630KVA

Factory Direct Sale Three Phase Step Down High Voltage Transformers 400KVA 500KVA 630KVA

400kva oil immersed transformer

400kva oil immersed electrical transformer

500kva oil immersed transformer

Place of Origin:

Hunan, China

Brand Name:

HENTG Power

Certification:

CE

Model Number:

S13

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Product Details
Frequency:
50Hz, 60Hz
Phase:
Three
Coil Number:
Multi Winding, Three Windings, Two Windings, Single Winding
Application:
Distribution System
Coil Structure:
Round Coil
Output Voltage:
415V, 220V, 380V, 400V , 440V
Input Voltage:
10.5kV, 3kV, 6.6kV, 6.3kV
Type:
Oil-Immersed Transformer, Oil Immersed
Winding Material:
100% Copper/Aluminum
Cooling Method:
ONAN
Capacity:
400KVA 500KVA 630KVA
Customized:
Accept
Vector Group:
Dyn11 / Yyn0
Customization:
Accept
Advantages:
Reducing The No-load Loss
Temperature Rise:
Less Than 65°C
Usage:
Power
Tapping:
± 5%, ± 2× 2.5%
Transformer Type:
Oil-immersed Transformer
Efficiency:
Up To 99%
Transformation Ratio:
10/0.4Kv
Material:
Copper / Aluminium
Number Of Phases:
Three Phases
Highlight:

400kva oil immersed transformer

,

400kva oil immersed electrical transformer

,

500kva oil immersed transformer

Payment & Shipping Terms
Minimum Order Quantity
2 sets
Price
CN¥17,806.25-24,928.75/units
Product Description
Factory Direct Sale Three Phase Step Down High Voltage Transformers 400KVA 500KVA 630KVA
Attribute Value
Frequency 50Hz, 60Hz
Phase Three
Coil Number Multi Winding, Three Windings, Two Windings, Single Winding
Application distribution system
Coil Structure round coil
Output Voltage 415V, 220V, 380V, 400V, 440V
Input Voltage 10.5kV, 3kV, 6.6kV, 6.3kV
Type Oil-Immersed Transformer, Oil Immersed
Winding Material 100% Copper/Aluminum
Cooling Method ONAN
Capacity 400KVA 500KVA 630KVA
Customized Accept
Vector Group Dyn11 / Yyn0
Customization Accept
Advantages Reducing the no-load loss
Temperature Rise Less than 65°C
Usage power
Tapping ± 5%, ± 2× 2.5%
Transformer Type Oil-immersed Transformer
Efficiency Up to 99%
Transformation Ratio 10/0.4Kv
Material Copper / Aluminium
Number Of Phases Three Phases
Product Description

Oil‑immersed transformers with optimized cooling channels using pressboard gaskets--supporting both ONAN and ONAF cooling for efficient heat management. Designed for low loss, high efficiency, and excellent cooling performance, our transformers are widely used in power grids, industrial zones, and renewable energy projects. Custom designs are available, fully compliant with IEC, ANSI, and other international standards.

Factory Direct Sale Three Phase Step Down High Voltage Transformers 400KVA 500KVA 630KVA 0
The Advantages of Type S13 Oil-Immersed Distribution Transformer

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:

  • Significantly reduces operational costs and energy consumption
  • Extended maintenance intervals with reduced upkeep costs
Product Parameters
Rated capacity (KVA) Vector Group Voltage Combination No-load loss Load loss No-load current Impedance
30 Yyn0 / Dyn11 10 6.3 6 80 630 1.5 4.0
50 100 910 1.3
63 110 1090 1.2
80 130 1310 1.2
100 150 1580 1.1
125 170 1890 1.1
160 200 2310 1.0
200 240 2730 1.0
250 290 3200 0.9
315 340 3830 0.9
400 410 4520 0.8
500 480 5410 0.8
630 570 6200 0.6 4.5
800 700 7500 0.6
1000 830 10300 0.6
1250 970 12000 0.5
1600 1170 14500 0.5
2000 1360 18300 0.4 5.0
2500 1600 21200 0.4
Consulting Process

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.

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.

WHY CHOOSE US?
  • In-house R&D & Manufacturing, Quality Assured
  • Fast Delivery & Quick Response
  • OEM / ODM Customization Available
  • Comprehensive After-Sales Support
  • Rich Export Experience Worldwide

Send your inquiry directly to us

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