Table of Contents
Overview of Distribution Transformers
Distribution transformers play a key role in electrical power distribution systems. They are designed to step down high voltage electricity from transmission lines to a lower voltage suitable for residential, commercial, and industrial use. The 630 kVA transformer is a popular choice among utilities and companies due to its balance of size, efficiency, and capacity.
A 630 kVA transformer can handle significant loads while maintaining high efficiency, making it ideal for various applications. These transformers are often utilized in urban areas where the demand for power is high, ensuring that businesses and homes receive a reliable electricity supply. The robust design of these transformers allows them to withstand harsh environmental conditions, contributing to their longevity and performance.
| Type | Rated power （KVA） | Voltage combination（KV） | Off-load losses（W） | Load losses（W） | Off-load current （%） | Short-circuit impedance （%） |
| SZ11-2000 | 2000 | 33,35/6.3,6.6,10.5,11 | 2300 | 19240 | 0.80 | 6.5 |
| SZ11-2500 | 2500 | 33,35/6.3,6.6,10.5,11 | 2720 | 20640 | 0.80 | 6.5 |
| SZ11-3150 | 3150 | 33,35/6.3,6.6,10.5,11 | 3230 | 24710 | 0.72 | 7.0 |
| SZ11-4000 | 4000 | 33,35/6.3,6.6,10.5,11 | 3870 | 29160 | 0.72 | 7.0 |
| SZ11-5000 | 5000 | 33,35/6.3,6.6,10.5,11 | 4640 | 34200 | 0.68 | 7.0 |
| SZ11-6300 | 6300 | 33,35/6.3,6.6,10.5,11 | 5630 | 36800 | 0.68 | 7.5 |
| SZ11-8000 | 8000 | 33,35/6.3,6.6,10.5,11 | 7870 | 40600 | 0.60 | 7.5 |
| SZ11-10000 | 10000 | 33,35/6.3,6.6,10.5,11 | 9280 | 48100 | 0.60 | 7.5 |
| SZ11-12500 | 12500 | 33,35/6.3,6.6,10.5,11 | 10940 | 56900 | 0.56 | 8.0 |
| SZ11-16000 | 16000 | 33,35/6.3,6.6,10.5,11 | 13170 | 70300 | 0.54 | 8.0 |
| SZ11-20000 | 20000 | 33,35/6.3,6.6,10.5,11 | 15570 | 82800 | 0.54 | 8.0 |
High-Quality Transformers from China
| Type | Rated power （KVA） | Voltage combination（KV） | Off-load losses（W） | Load losses（W） | Off-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 |
Chinese manufacturers have established themselves as leaders in the production of high-quality distribution transformers, including the 630 kVA model. With advancements in technology and manufacturing processes, these companies produce transformers that meet international standards for efficiency and safety.
Many Chinese companies focus on quality control and testing protocols to ensure that their transformers can operate effectively under various load conditions. This commitment to quality has made Chinese-made transformers highly sought after in both domestic and international markets. Customers can expect not only reliability but also competitive pricing when sourcing transformers from reputable Chinese manufacturers.
Selecting the Right Transformer for Your Needs
When selecting a distribution transformer, it is essential to consider factors such as load requirements, installation environment, and budget. The 630 kVA transformer is versatile enough for many applications, but understanding your specific needs will help you make an informed decision.
It’s also important to work with a trusted supplier who can provide guidance on the best options available. Many leading companies in China offer comprehensive support, including installation services and after-sales assistance. Ensuring that you have the right transformer installed correctly can prevent costly issues down the line, allowing for a more efficient energy distribution system.
Whether you are looking for a state-of-the-art transformer or a cost-effective solution, the options available from Chinese manufacturers will meet your expectations for high quality and performance.