Table of Contents
Types of Transformers: Dry Type and Liquid Filled
Transformers play a crucial role in electrical systems, and they come in various types. Two prominent types are dry type and liquid filled transformers. Dry type transformers utilize air as their cooling medium, making them suitable for indoor applications where fire safety is a concern. They are often used in commercial buildings and industrial facilities, providing reliable power distribution without the risk of oil leaks.
On the other hand, liquid filled transformers use insulating oil to cool the core and windings. This type is commonly found in outdoor settings, such as substations and pole-mounted installations. The oil not only aids in cooling but also acts as an insulator, enhancing the transformer’s efficiency. However, it is important to consider the environmental implications of using liquid filled transformers, especially regarding potential leaks and spills.
Pole Mounted Transformers: A Popular Choice
Pole mounted transformers are widely used in electrical distribution networks, particularly in rural and suburban areas. These transformers are installed on utility poles to provide power to homes and businesses. Their elevated position helps protect them from flooding and other ground-level hazards, making them a practical choice for many regions.
| 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 |
The design of pole mounted transformers allows for easy access for maintenance and inspection, which is essential for ensuring their longevity. Additionally, these transformers can be equipped with advanced monitoring technology to enhance operational efficiency. This adaptability is particularly important in the rapidly evolving energy landscape, where smart grid solutions are becoming increasingly common.
China Manufacturers and Environmental Considerations
China is home to numerous manufacturers producing both dry type and liquid filled transformers. These companies play a significant role in the global market, offering a wide range of products to meet diverse energy needs. With advancements in technology, many Chinese manufacturers are focusing on producing environmentally friendly transformers that minimize ecological impact while maintaining performance.
When selecting a transformer, it’s essential to consider the environmental regulations and standards applicable in your region. Some manufacturers have adopted more sustainable practices, such as using recyclable materials and implementing eco-friendly production processes. This commitment to sustainability not only helps protect the environment but also aligns with global efforts to reduce carbon footprints.
For those interested in learning more about these transformers, various videos are available online. These visual resources can provide insights into their construction, operation, and application in real-world scenarios. Watching these videos can enhance understanding, especially for those new to the field or looking to make informed decisions regarding transformer selection.
