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Understanding Electrical Transformers
Electrical transformers play a crucial role in the power distribution system, facilitating the transfer of electrical energy between two or more circuits through electromagnetic induction. They are designed to either increase (step-up) or decrease (step-down) voltage levels, making them indispensable in both residential and industrial settings.
Transformers come in various designs and configurations, with ground mounted transformers being particularly popular for their ease of installation and maintenance. These transformers are typically installed directly on the ground, often in outdoor environments, making them ideal for utility companies and large-scale industrial applications.
Ground Mounted Transformers in China
China has emerged as a leading exporter of ground mounted transformers, catering to a diverse range of international markets. The country is home to numerous manufacturers that specialize in producing high-quality transformers equipped with advanced technology, ensuring reliability and efficiency in power distribution.
One of the key advantages of sourcing transformers from China is the affordability without compromising on quality. Many Chinese makers utilize cold rolled oriented silicon steel cores, which enhance the transformer’s efficiency and performance. This type of core material minimizes energy losses, allowing for better operational effectiveness, which is essential for meeting the growing energy demands globally.
| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load Current (%) | Short-circuit impedance (%) |
| SH15-M-30 | 30 | 6,6.3,10,10.5,11/0.4 | 33 | 630 | 1.50 | 4.0 |
| SH15-M-50 | 50 | 6,6.3,10,10.5,11/0.4 | 43 | 910 | 1.20 | 4.0 |
| SH15-M-63 | 63 | 6,6.3,10,10.5,11/0.4 | 50 | 1090 | 1.10 | 4.0 |
| SH15-M-80 | 80 | 6,6.3,10,10.5,11/0.4 | 60 | 1310 | 1.00 | 4.0 |
| SH15-M-100 | 100 | 6,6.3,10,10.5,11/0.4 | 75 | 1580 | 0.90 | 4.0 |
| SH15-M-125 | 125 | 6,6.3,10,10.5,11/0.4 | 85 | 1890 | 0.80 | 4.0 |
| SH15-M-160 | 160 | 6,6.3,10,10.5,11/0.4 | 100 | 2310 | 0.60 | 4.0 |
| SH15-M-200 | 200 | 6,6.3,10,10.5,11/0.4 | 120 | 2730 | 0.60 | 4.0 |
| SH15-M-250 | 250 | 6,6.3,10,10.5,11/0.4 | 140 | 3200 | 0.60 | 4.0 |
| SH15-M-315 | 315 | 6,6.3,10,10.5,11/0.4 | 170 | 3830 | 0.50 | 4.0 |
| SH15-M-400 | 400 | 6,6.3,10,10.5,11/0.4 | 200 | 4520 | 0.50 | 4.0 |
| SH15-M-500 | 500 | 6,6.3,10,10.5,11/0.4 | 240 | 5140 | 0.50 | 4.0 |
| SH15-M-630 | 630 | 6,6.3,10,10.5,11/0.4 | 320 | 6200 | 0.30 | 4.5 |
| SH15-M-800 | 800 | 6,6.3,10,10.5,11/0.4 | 380 | 7500 | 0.30 | 4.5 |
| SH15-M-1000 | 1000 | 6,6.3,10,10.5,11/0.4 | 450 | 10300 | 0.30 | 4.5 |
| SH15-M-1250 | 1250 | 6,6.3,10,10.5,11/0.4 | 530 | 12000 | 0.20 | 4.5 |
| SH15-M-1600 | 1600 | 6,6.3,10,10.5,11/0.4 | 630 | 14500 | 0.20 | 4.5 |
| SH15-M-2000 | 2000 | 6,6.3,10,10.5,11/0.4 | 750 | 18300 | 0.20 | 5.0 |
| SH15-M-2500 | 2500 | 6,6.3,10,10.5,11/0.4 | 900 | 21200 | 0.20 | 5.0 |
The Role of Cold Rolled Oriented Si Steel Cores
Cold rolled oriented silicon steel cores are a vital component in the construction of modern transformers. These cores have specific magnetic properties that significantly reduce hysteresis losses during operation, leading to improved energy efficiency. As a result, transformers equipped with these cores can operate at lower temperatures and consume less energy.

The use of high-quality silicon steel cores is especially important for ground mounted transformers, where space and efficiency are critical factors. Manufacturers in China have adopted advanced production techniques to ensure that their silicon steel cores meet international standards, thereby enhancing the overall performance of the transformers.
In addition to their technical benefits, videos showcasing the manufacturing process and real-world applications of these transformers are widely available online. These videos provide valuable insights into how ground mounted transformers are made and highlight their importance in modern electrical infrastructure, making them a great resource for engineers and industry professionals alike.

