Table of Contents
Step Down Transformer
Step down transformers are electrical devices that convert high voltage electricity to a lower voltage. This is essential for applications where the voltage needs to be reduced for safe use in homes and industries. By using electromagnetic induction, these transformers efficiently transfer energy between two circuits while minimizing energy loss.

The construction of a step down transformer involves primary and secondary windings wrapped around a magnetic core. The number of turns in the primary coil is greater than that in the secondary coil, which results in a decrease in voltage. These transformers are commonly used in various applications, including power supplies, electric vehicles, and renewable energy systems.
In addition to their functional benefits, step down transformers also offer improved safety. Lowering the voltage reduces the risk of electric shock and equipment damage. This makes them an integral part of modern electrical systems, ensuring reliable and safe operation across different environments.
Three Phase Transformer
Three phase transformers are designed to handle three-phase electrical systems, which are widely used in industrial and commercial applications. These transformers are capable of delivering more power efficiently than single-phase transformers. They consist of three sets of primary and secondary windings, allowing for balanced load distribution and improved performance.
| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load current (%) | Short-circuit impedance (%) |
| SCH15-30 | 30 | 6,6.3,6.6,10,11/0.4 | 70 | 710 | 1.6 | 4.0 |
| SCH15-50 | 50 | 6,6.3,6.6,10,11/0.4 | 90 | 1000 | 1.4 | 4.0 |
| SCH15-80 | 80 | 6,6.3,6.6,10,11/0.4 | 120 | 1380 | 1.3 | 4.0 |
| SCH15-100 | 100 | 6,6.3,6.6,10,11/0.4 | 130 | 1570 | 1.2 | 4.0 |
| SCH15-125 | 125 | 6,6.3,6.6,10,11/0.4 | 150 | 1850 | 1.1 | 4.0 |
| SC(B)H15-160 | 160 | 6,6.3,6.6,10,11/0.4 | 170 | 2130 | 1.1 | 4.0 |
| SC(B)H15-200 | 200 | 6,6.3,6.6,10,11/0.4 | 200 | 2530 | 1.0 | 4.0 |
| SC(B)H15-250 | 250 | 6,6.3,6.6,10,11/0.4 | 230 | 2760 | 1.0 | 4.0 |
| SC(B)H15-315 | 315 | 6,6.3,6.6,10,11/0.4 | 280 | 3470 | 0.9 | 4.0 |
| SC(B)H15-400 | 400 | 6,6.3,6.6,10,11/0.4 | 310 | 3990 | 0.8 | 4.0 |
| SC(B)H15-500 | 500 | 6,6.3,6.6,10,11/0.4 | 360 | 4880 | 0.8 | 4.0 |
| SC(B)H15-630 | 630 | 6,6.3,6.6,10,11/0.4 | 420 | 5880 | 0.7 | 4.0 |
| SC(B)H15-630 | 630 | 6,6.3,6.6,10,11/0.4 | 410 | 5960 | 0.7 | 6.0 |
| SC(B)H15-800 | 800 | 6,6.3,6.6,10,11/0.4 | 480 | 6960 | 0.7 | 6.0 |
| SC(B)H15-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 550 | 8130 | 0.6 | 6.0 |
| SC(B)H15-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 650 | 9690 | 0.6 | 6.0 |
| SC(B)H15-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 780 | 11730 | 0.6 | 6.0 |
| SC(B)H15-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 1000 | 14450 | 0.5 | 6.0 |
| SC(B)H15-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 1200 | 17170 | 0.5 | 6.0 |
One significant advantage of three phase transformers is their ability to supply power to large motors and heavy machinery. This is particularly important in manufacturing environments where high power demands are common. Their design helps to reduce losses and improve voltage stability, making them a preferred choice in many industrial settings.
Moreover, three phase transformers can be configured in different ways, such as delta or wye connections, depending on the requirements of the electrical system. This versatility allows engineers to optimize the performance of electrical networks while ensuring effective power delivery to various loads.
China Factory and ISO 9001
China has become a global hub for manufacturing, producing a wide range of electrical components, including transformers. Factories in China often adhere to international standards to enhance product quality and customer satisfaction. One of the most recognized standards is ISO 9001, which focuses on quality management systems.
ISO 9001 certification indicates that a factory follows rigorous processes to ensure consistent quality in its products. For transformer manufacturers, this means implementing effective quality control measures at every stage of production. By achieving ISO 9001 certification, Chinese factories can compete effectively in the global market, attracting clients who prioritize quality.
<pAdditionally, the adoption of ISO 9001 helps in building trust with customers, as it provides assurance that the products meet specified quality criteria. This is crucial in industries that rely heavily on electrical equipment, as any failure could lead to significant safety hazards or operational disruptions. Investing in quality management not only improves product reliability but also enhances a factory's reputation in the competitive landscape.
