Medium Voltage Dry type transformer Overview
| Type | Rated capacity （KVA） | Voltage combination（KV） | No-load losses（W） | Load losses（W） | No-load current （%） | Short-circuit impedance （%） |
| SC12-30 | 30 | 6,6.3,6.6,10,11/0.4 | 150 | 710 | 2.0 | 4.0 |
| SC12-50 | 50 | 6,6.3,6.6,10,11/0.4 | 215 | 1000 | 2.0 | 4.0 |
| SC12-80 | 80 | 6,6.3,6.6,10,11/0.4 | 295 | 1380 | 1.5 | 4.0 |
| SC12-100 | 100 | 6,6.3,6.6,10,11/0.4 | 320 | 1570 | 1.5 | 4.0 |
| SC12-125 | 125 | 6,6.3,6.6,10,11/0.4 | 375 | 1850 | 1.3 | 4.0 |
| SCB12-160 | 160 | 6,6.3,6.6,10,11/0.4 | 430 | 2130 | 1.3 | 4.0 |
| SCB12-200 | 200 | 6,6.3,6.6,10,11/0.4 | 495 | 2530 | 1.1 | 4.0 |
| SCB12-250 | 250 | 6,6.3,6.6,10,11/0.4 | 575 | 2760 | 1.1 | 4.0 |
| SCB12-315 | 315 | 6,6.3,6.6,10,11/0.4 | 705 | 3470 | 1.0 | 4.0 |
| SCB12-400 | 400 | 6,6.3,6.6,10,11/0.4 | 785 | 3990 | 1.0 | 4.0 |
| SCB12-500 | 500 | 6,6.3,6.6,10,11/0.4 | 930 | 4880 | 1.0 | 4.0 |
| SCB12-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1070 | 5880 | 0.85 | 4.0 |
| SCB12-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1040 | 5960 | 0.85 | 6.0 |
| SCB12-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1210 | 6960 | 0.85 | 6.0 |
| SCB12-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1410 | 8130 | 0.85 | 6.0 |
| SCB12-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 1670 | 9690 | 0.85 | 6.0 |
| SCB12-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 1960 | 11700 | 0.85 | 6.0 |
| SCB12-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 2440 | 14400 | 0.7 | 6.0 |
| SCB12-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 2880 | 17100 | 0.7 | 6.0 |
Medium voltage dry type transformers are essential components in electrical distribution systems, providing reliable voltage transformation without the use of liquid insulation. These transformers are designed to operate at voltages typically ranging from 1kV to 36kV and are widely used in commercial, industrial, and utility applications where safety and environmental considerations are paramount.
One of the key advantages of dry type transformers is their maintenance-free nature and enhanced fire safety compared to oil-filled transformers. They employ air as the cooling medium and use insulation materials that are resistant to moisture and contaminants, making them suitable for indoor installations and areas with strict environmental regulations.
Electrical Silicon Steel Core Features
The core of a medium voltage Dry type transformer is usually made from electrical silicon steel, which plays a critical role in the transformer’s efficiency and performance. Electrical silicon steel is specially processed to reduce hysteresis and eddy current losses, enabling transformers to operate with lower energy dissipation and improved magnetic properties.
This type of silicon steel is manufactured with high purity and precise grain orientation, which enhances magnetic flux conduction and reduces noise during operation. The quality of the silicon steel core directly impacts the transformer’s thermal stability, efficiency, and overall lifespan, making it a crucial factor in transformer design and production.
China Manufacturer Advantages
China has become a leading manufacturer of medium voltage dry type transformers, offering competitive pricing and high-quality products to meet global demand. Chinese manufacturers utilize advanced production technologies and strict quality control processes to ensure their transformers comply with international standards such as IEC and ANSI.
Additionally, many Chinese manufacturers provide customization options to cater to specific client requirements, including various voltage ratings, insulation classes, and installation environments. This flexibility, combined with efficient supply chains and experienced engineering teams, positions China as a preferred source for reliable and cost-effective medium voltage dry type transformers.