400 KVA Air Insulated Dry Type Transformer
Primary Voltage Ratings:10kV 11kV 20kV 35kV or others
Secondary Voltage Ratings:0.4 kV or others
H.V Tap Range:±2x2.5% or others
Connection Type: Dyn1l/Yyn0 or others
Description
Technical Parameters
Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 400 kva air insulated dry type transformer in China, also supports customized service with low price. Welcome to buy discount 400 kva air insulated dry type transformer for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
product video
Product Description
The SC(B)11 series 10kV - class products are air insulated dry type transformers with no - load tap - changing. This type uses an F - class epoxy resin mixture with fillers. After vacuum degassing treatment, it is injected into coils with glass - fiber forming meshes on the surface for drying and molding. This type of product has significantly improved mechanical strength, electrical strength, and thermal strength. The insulating material is flame - retardant, explosion - proof, and pollution - free, eliminating the concerns of the users.
Technical data sheet
| Rated Capacity (KVA) |
Rated Voltage (KV) | Connection Method |
No-load Loss (W) |
Load Loss (W) |
No-load Current (%) |
Short Circuit Impedance (%) |
Sound Level DB(A) |
Size (MM) | Weight (KG) |
Low Voltage Terminal |
|||
| High Voltage |
Low Voltage |
Length | Width | Height | |||||||||
| 30 | 11 10.5 10 6.3 6 voltage regulation range+5% or +2x2.5% |
0.4 | Yyn0 Dyn11 |
190 | 710 | 2 | 4 | 42 | 880 | 460 | 862 | 440 | |
| 50 | 270 | 1000 | 2 | 42 | 950 | 750 | 915 | 575 | |||||
| 80 | 370 | 1380 | 1.2 | 42 | 1000 | 750 | 977 | 620 | |||||
| 100 | 400 | 1570 | 0.7 | 42 | 1030 | 750 | 1020 | 830 | (a) | ||||
| 125 | 470 | 1850 | 0.7 | 43 | 1050 | 750 | 1057 | 940 | |||||
| 160 | 540 | 2130 | 0.7 | 43 | 1080 | 750 | 1147 | 1100 | (a) | ||||
| 200 | 620 | 2530 | 0.7 | 43 | 1100 | 860 | 1185 | 1245 | (a) | ||||
| 250 | 720 | 2760 | 0.7 | 43 | 1120 | 960 | 1262 | 1415 | (a) | ||||
| 315 | 880 | 3470 | 0.7 | 45 | 1200 | 860 | 1362 | 1450 | (b) | ||||
| 400 | 980 | 3990 | 0.7 | 45 | 1240 | 860 | 1195 | 1655 | (b) | ||||
| 500 | 1160 | 4880 | 0.6 | 46 | 1255 | 860 | 1195 | 1945 | (c) | ||||
| 630 | 1340 | 5880 | 0.6 | 46 | 1406 | 860 | 1280 | 2440 | (c) | ||||
| 630 | 1300 | 5960 | 0.6 | 6 | 46 | 1405 | 860 | 1260 | 2475 | (c) | |||
| 800 | 1520 | 6960 | 0.5 | 48 | 1425 | 1020 | 1385 | 2990 | (d) | ||||
| 1000 | 1770 | 8130 | 0.4 | 48 | 1500 | 1270 | 1385 | 3395 | (d) | ||||
| 1250 | 2090 | 9690 | 0.4 | 49 | 1580 | 1270 | 1597 | 3520 | (e) | ||||
| 1600 | 2450 | 11700 | 0.3 | 49 | 1658 | 1270 | 1660 | 4165 | (f) | ||||
| 2000 | 3050 | 14400 | 0.3 | 50 | 1805 | 1270 | 1847 | 5545 | (g) | ||||
| 2500 | 3600 | 17100 | 0.3 | 50 | 1890 | 1270 | 2020 | 6670 | (g) | ||||
| 1600 | 2450 | 12900 | 0.3 | 8 | 49 | 1680 | 1270 | 1680 | 3720 | (f) | |||
| 2000 | 3050 | 15900 | 0.3 | 50 | 1885 | 1270 | 1850 | 4920 | (g) | ||||
| 2500 | 3600 | 18800 | 0.3 | 50 | 1910 | 1270 | 2080 | 5900 | (g) | ||||
400 kVA Air Insulated Dry Type Transformer Drawing
400 kVA transformer diagram drawing and size.
400 kVA Dry Type Transformer manufacturing
LV Winding
The LV windings are constructed using either premium foil conductors or 100% copper wire. This configuration achieves superior ampereturn balance and minimizes transverse magnetic flux leakage, thereby enhancing the 400 kVA air insulated dry type transformer's short-circuit withstand capability.
The oil passage structure is engineered to maximize heat dissipation, reducing the LV winding temperature rise and improving overload performance.
HV Windings
HV windings are fabricated from high-quality wire conductors with fiberglass insulation reinforcement.
Cast under vacuum and high pressure, the HV windings ensure complete resin penetration and extremely low partial discharge levels (≤5Pc for 11kV products).
The optimized HV winding structure improves the electric field distribution. Lightning impulse simulation was employed in the design process to enhance the air insulated dry type transformer's surge withstand capability.
What Are the Differences between Dry Type Transformer Aluminum Coils and Copper Coils?
Cast coil dry type transformer aluminum coils and copper coils differ in several aspects:
Electrical conductivity: Copper has higher conductivity, leading to lower resistive losses and higher efficiency than aluminum.
Mechanical properties: Copper is more ductile and has better resistance to mechanical stress, while aluminum is softer and more prone to deformation.
Thermal properties: Copper has better thermal conductivity, dissipating heat more effectively. Aluminum has a lower conductivity and may accumulate heat more easily.
Cost: Aluminum is generally less expensive than copper, making it a cost - effective option in some cases.
Corrosion resistance: Copper has good corrosion resistance in many environments, while aluminum may be more vulnerable to certain corrosive substances.
Size and weight: Aluminum coils are lighter, but require larger cross - sectional areas, which may lead to larger - sized coils compared to copper coils.
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