Table of Contents
Overview of Dry Type Transformers
Dry type transformers are essential electrical devices used to step up or step down voltage levels in various applications. Unlike their oil-filled counterparts, dry type transformers use air as a cooling medium, making them safer and more environmentally friendly. Their construction primarily involves insulation materials, which allow these transformers to operate without the risk of leaks that can occur with oil-based systems.
In the realm of industrial operations, dry type transformers offer significant advantages. They are particularly suitable for indoor installations due to their reduced fire hazard compared to oil transformers. This characteristic ensures compliance with safety regulations, making them a preferred choice in many facilities such as factories and hospitals. Additionally, dry type transformers require less maintenance than traditional oil-filled versions, leading to lower overall operational costs over time.
Features of 750 kVA Transformers

The 750 kVA transformer is a robust device often utilized in commercial and industrial settings. It delivers a sufficient power supply for various applications, including machinery, HVAC systems, and lighting. Notably, its high capacity enables efficient voltage regulation, crucial for maintaining the stability of electrical systems in large facilities.
One of the key features of this transformer is its high cost performance. Many factories in China produce 750 kVA transformers, providing competitive pricing without compromising quality. These factories leverage advanced manufacturing technologies, resulting in products that not only meet but often exceed international standards. As a result, customers can expect a reliable product that offers excellent value for money, ensuring a wise investment in their energy needs.
Advantages of Sourcing from China Factories
China has emerged as a global leader in manufacturing electrical equipment, including dry type transformers like the 750 kVA model. The country’s factories benefit from an extensive supply chain and skilled labor, allowing them to deliver high-quality transformers at competitive prices. This advantage is particularly beneficial for businesses seeking to optimize their operational budgets while still requiring reliable equipment.
| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load current (%) | Short-circuit impedance (%) |
| S11-630 | 630 | 33,35/6.3,6.6,10.5,11 | 830 | 7870 | 1.10 | 6.5 |
| S11-800 | 800 | 33,35/6.3,6.6,10.5,11 | 980 | 9410 | 1.00 | 6.5 |
| S11-1000 | 1000 | 33,35/6.3,6.6,10.5,11 | 1150 | 11540 | 1.00 | 6.5 |
| S11-1250 | 1250 | 33,35/6.3,6.6,10.5,11 | 1410 | 13940 | 0.90 | 6.5 |
| S11-1600 | 1600 | 33,35/6.3,6.6,10.5,11 | 1700 | 16670 | 0.80 | 6.5 |
| S11-2000 | 2000 | 33,35/6.3,6.6,10.5,11 | 2180 | 18380 | 0.70 | 6.5 |
| S11-2500 | 2500 | 33,35/6.3,6.6,10.5,11 | 2560 | 19670 | 0.60 | 6.5 |
| S11-3150 | 3150 | 33,35/6.3,6.6,10.5,11 | 3040 | 23090 | 0.56 | 7.0 |
| S11-4000 | 4000 | 33,35/6.3,6.6,10.5,11 | 3620 | 27360 | 0.56 | 7.0 |
| S11-5000 | 5000 | 33,35/6.3,6.6,10.5,11 | 4320 | 31380 | 0.48 | 7.0 |
| S11-6300 | 6300 | 33,35/6.3,6.6,10.5,11 | 5250 | 35060 | 0.48 | 7.5 |
| S11-8000 | 8000 | 33,35/6.3,6.6,10.5,11 | 7200 | 38500 | 0.42 | 7.5 |
| S11-10000 | 10000 | 33,35/6.3,6.6,10.5,11 | 8700 | 45300 | 0.42 | 7.5 |
| S11-12500 | 12500 | 33,35/6.3,6.6,10.5,11 | 10080 | 53900 | 0.40 | 8.0 |
| S11-16000 | 16000 | 33,35/6.3,6.6,10.5,11 | 12160 | 65800 | 0.40 | 8.0 |
| S11-20000 | 20000 | 33,35/6.3,6.6,10.5,11 | 14400 | 79500 | 0.40 | 8.0 |
| S11-25000 | 25000 | 33,35/6.3,6.6,10.5,11 | 17020 | 94100 | 0.32 | 8.0 |
| S11-31500 | 31500 | 33,35/6.3,6.6,10.5,11 | 20220 | 112900 | 0.32 | 8.0 |
Moreover, partnering with Chinese manufacturers provides access to a vast range of customizable options tailored to specific needs. From voltage ratings to size and design, customers can request modifications to fit their unique requirements. With the right factory, it’s also possible to ensure compliance with international standards, further enhancing the product’s marketability in various regions, including North America and Europe.

