Table of Contents
Understanding Step Down Transformers
Step down transformers are essential electrical devices that reduce voltage levels from a higher voltage to a lower voltage. They play a crucial role in various industries, enabling the safe and efficient operation of electrical equipment. By converting high voltage electricity into lower voltage, these transformers help protect sensitive machinery and ensure reliable power supply.

In applications where equipment requires specific voltage ratings, step down transformers provide the necessary adjustments. They are commonly used in residential settings, commercial buildings, and industrial plants. The ability to tailor voltage levels to meet the needs of different systems makes them indispensable in modern electrical infrastructure.
The Significance of a 250 kVA Transformer
| Type | Rated power (KVA) | Voltage combination(KV) | Off-load losses(W) | Load losses(W) | Off-load current (%) | Short-circuit impedance (%) |
| SC10-800 | 800 | 33,35,38/6,6.3,6.6,10,11 | 2200 | 9400 | 1.1 | 6.0 |
| SC10-1000 | 1000 | Voltage combination(KV) | 2610 | 10800 | 1.1 | 6.0 |
| SC10-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 3060 | 11900 | 1.0 | 6.0 |
| SC10-1500 | 1500 | Voltage combination(KV) | 3600 | 15400 | 1.0 | 6.0 |
| SC10-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 4130 | 18200 | 0.9 | 7.0 |
| SC10-2500 | 2500 | Voltage combination(KV) | 4750 | 21800 | 0.9 | 7.0 |
| SC10-3150 | 3150 | 6,6.3,6.6,10,11/0.4 | 5880 | 24500 | 0.8 | 8.0 |
| SC10-4000 | 4000 | Voltage combination(KV) | 6860 | 29400 | 0.8 | 8.0 |
| SC10-5000 | 5000 | 6,6.3,6.6,10,11/0.4 | 8180 | 34960 | 0.7 | 8.0 |
| SC10-6300 | 6300 | Voltage combination(KV) | 9680 | 40800 | 0.7 | 8.0 |
| SC10-8000 | 8000 | 6,6.3,6.6,10,11/0.4 | 11000 | 46060 | 0.6 | 9.0 |
| SC10-10000 | 10000 | Voltage combination(KV) | 12660 | 56500 | 0.6 | 9.0 |
| SC10-12500 | 12500 | 6,6.3,6.6,10,11/0.4 | 15400 | 64600 | 0.5 | 9.0 |
| SC10-16000 | 16000 | Voltage combination(KV) | 18900 | 76000 | 0.5 | 9.0 |
| SC10-20000 | 20000 | 6,6.3,6.6,10,11/0.4 | 22400 | 85500 | 0.4 | 10.0 |
A 250 kVA transformer is a robust and versatile option for various power distribution needs. This type of transformer can handle significant loads, making it suitable for medium-sized enterprises and industrial applications. Its capacity allows it to efficiently convert voltage levels while maintaining performance integrity, which is essential in preventing overloading and ensuring system stability.
In China, suppliers offer a range of 250 kVA transformers that cater to diverse requirements. The availability of these transformers at competitive prices has made them a popular choice among businesses seeking high cost performance. When selecting a supplier, it is vital to consider factors such as product quality, reliability, and after-sales support to achieve the best value for investment.
Choosing a Reliable Supplier in China
When looking for a step down transformer supplier in China, it is important to evaluate their reputation and track record. A reliable supplier will not only provide high-quality products but also offer excellent customer service. Reviews and testimonials from previous customers can serve as valuable insights when making your decision.

Cost performance is another critical factor when selecting a transformer supplier. Many Chinese suppliers are known for offering affordable pricing without compromising on quality. This balance between cost and performance is particularly attractive for businesses that need to maximize their operating budgets while ensuring equipment efficiency. Additionally, it is advisable to check for certifications and compliance with international standards to ensure the product’s reliability and safety.
| Dry transfo | Rated power (KVA) | Voltage combination(KV) | Off-load losses(W) | Load losses(W) | Off-load current (%) | Short-circuit impedance (%) |
| SC10-30 | 30 | 6,6.3,6.6,10,11/0.4 | 190 | 710 | 2.4 | 4.0 |
| SC10-50 | 50 | 6,6.3,6.6,10,11/0.4 | 270 | 1000 | 2.4 | 4.0 |
| SC10-80 | 80 | 6,6.3,6.6,10,11/0.4 | 370 | 1380 | 1.8 | 4.0 |
| SC10-100 | 100 | 6,6.3,6.6,10,11/0.4 | 400 | 1570 | 1.8 | 4.0 |
| SC10-125 | 125 | 6,6.3,6.6,10,11/0.4 | 470 | 1850 | 1.6 | 4.0 |
| SCB10-160 | 160 | 6,6.3,6.6,10,11/0.4 | 550 | 2130 | 1.6 | 4.0 |
| SCB10-200 | 200 | 6,6.3,6.6,10,11/0.4 | 630 | 2530 | 1.4 | 4.0 |
| SCB10-250 | 250 | 6,6.3,6.6,10,11/0.4 | 720 | 2760 | 1.4 | 4.0 |
| SCB10-315 | 315 | 6,6.3,6.6,10,11/0.4 | 880 | 3470 | 1.2 | 4.0 |
| SCB10-400 | 400 | 6,6.3,6.6,10,11/0.4 | 980 | 3990 | 1.2 | 4.0 |
| SCB10-500 | 500 | 6,6.3,6.6,10,11/0.4 | 1160 | 4880 | 1.2 | 4.0 |
| SCB10-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1350 | 5880 | 1.0 | 4.0 |
| SCB10-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1300 | 5960 | 1.0 | 6.0 |
| SCB10-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1520 | 6960 | 1.0 | 6.0 |
| SCB10-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1770 | 8130 | 1.0 | 6.0 |
| SCB10-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 2090 | 9690 | 1.0 | 6.0 |
| SCB10-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 2450 | 11730 | 1.0 | 6.0 |
| SCB10-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 3050 | 14450 | 0.8 | 6.0 |
| SCB10-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 3600 | 17170 | 0.8 | 6.0 |

