Table of Contents
Understanding ONAN Transformers
ONAN transformers, or Oil Natural Air Natural transformers, are commonly used in various power distribution applications. These transformers utilize oil as a cooling medium while relying on natural air for ventilation. This design allows for efficient heat dissipation, making ONAN transformers ideal for environments with moderate temperature variations.
One of the primary advantages of ONAN transformers is their reliability. In regions where electricity demand is high, these transformers can provide stable performance over long periods. Their robust construction and effective cooling system ensure that they can handle the load without overheating, making them a favored choice among engineers and electrical contractors.
Exploring 100 kVA Transformers
A 100 kVA transformer is a specific size in the range of distribution transformers, typically used to step down voltage levels in various settings, from commercial buildings to industrial facilities. This capacity is often sufficient for medium-scale operations, allowing businesses to operate safely and efficiently.
| Type | Rated capacity （KVA） | No-load losses（W） | Voltage combination （KV） | Load losses（W） | No-load current （%） | Short-circuit impedance （%） |
| S11-M-30 | 30 | 100 | 6,6.3,10,10.5,11/0.4 | 600 | 2.3 | 4.0 |
| S11-M-50 | 50 | 130 | 6,6.3,10,10.5,11/0.4 | 870 | 2.0 | 4.0 |
| S11-M-63 | 63 | 150 | 6,6.3,10,10.5,11/0.4 | 1040 | 1.9 | 4.0 |
| S11-M-80 | 80 | 180 | 6,6.3,10,10.5,11/0.4 | 1250 | 1.9 | 4.0 |
| S11-M-100 | 100 | 200 | 6,6.3,10,10.5,11/0.4 | 1500 | 1.8 | 4.0 |
| S11-M-125 | 125 | 240 | 6,6.3,10,10.5,11/0.4 | 1800 | 1.7 | 4.0 |
| S11-M-160 | 160 | 280 | 6,6.3,10,10.5,11/0.4 | 2200 | 1.6 | 4.0 |
| S11-M-200 | 200 | 340 | 6,6.3,10,10.5,11/0.4 | 2600 | 1.5 | 4.0 |
| S11-M-250 | 250 | 400 | 6,6.3,10,10.5,11/0.4 | 3050 | 1.4 | 4.0 |
| S11-M-315 | 315 | 480 | 6,6.3,10,10.5,11/0.4 | 3650 | 1.4 | 4.0 |
| S11-M-400 | 400 | 570 | 6,6.3,10,10.5,11/0.4 | 4300 | 1.3 | 4.0 |
| S11-M-500 | 500 | 680 | 6,6.3,10,10.5,11/0.4 | 5100 | 1.2 | 4.0 |
| S11-M-630 | 630 | 810 | 6,6.3,10,10.5,11/0.4 | 6200 | 1.1 | 4.5 |
| S11-M-800 | 800 | 980 | 6,6.3,10,10.5,11/0.4 | 7500 | 1.0 | 4.5 |
| S11-M-1000 | 1000 | 1150 | 6,6.3,10,10.5,11/0.4 | 10300 | 1.0 | 4.5 |
| S11-M-1250 | 1250 | 1360 | 6,6.3,10,10.5,11/0.4 | 12800 | 0.9 | 4.5 |
| S11-M-1600 | 1600 | 1640 | 6,6.3,10,10.5,11/0.4 | 14500 | 0.8 | 4.5 |
| S11-M-2000 | 2000 | 2280 | 6,6.3,10,10.5,11/0.4 | 17820 | 0.6 | 5.0 |
| S11-M-2500 | 2500 | 2700 | 6,6.3,10,10.5,11/0.4 | 20700 | 0.6 | 5.0 |
| S11-M-30- | 30 | 90 | 20,22/0.4 | 660 | 2.1 | 5.5 |
| S11-M-50- | 50 | 130 | 20,22/0.4 | 960 | 2 | 5.5 |
| S11-M-63- | 63 | 150 | 20,22/0.4 | 1145 | 1.9 | 5.5 |
| S11-M-80- | 80 | 180 | 20,22/0.4 | 1370 | 1.8 | 5.5 |
| S11-M-100- | 100 | 200 | 20,22/0.4 | 1650 | 1.6 | 5.5 |
| S11-M-125- | 125 | 240 | 20,22/0.4 | 1980 | 1.5 | 5.5 |
| S11-M-160- | 160 | 290 | 20,22/0.4 | 2420 | 1.4 | 5.5 |
| S11-M-200- | 200 | 330 | 20,22/0.4 | 2860 | 1.3 | 5.5 |
| S11-M-250- | 250 | 400 | 20,22/0.4 | 3350 | 1.2 | 5.5 |
| S11-M-315- | 315 | 480 | 20,22/0.4 | 4010 | 1.1 | 5.5 |
| S11-M-400- | 400 | 570 | 20,22/0.4 | 4730 | 1 | 5.5 |
| S11-M-500 | 500 | 680 | 20,22/0.4 | 5660 | 1 | 5.5 |
| S11-M-630 | 630 | 810 | 20,22/0.4 | 6820 | 0.9 | 6 |
| S11-M-800 | 800 | 980 | 20,22/0.4 | 8250 | 1.8 | 6 |
| S11-M-1000 | 1000 | 1150 | 20,22/0.4 | 11330 | 0.7 | 6 |
| S11-M-1250 | 1250 | 1350 | 20,22/0.4 | 13200 | 0.7 | 6 |
| S11-M-1600 | 1600 | 1630 | 20,22/0.4 | 15950 | 0.6 | 6 |
When selecting a 100 kVA transformer, it is crucial to consider factors such as load requirements, efficiency ratings, and installation environment. High-quality models often feature advanced insulation and noise-reduction technologies, which make them more cost-effective over time due to reduced energy losses and maintenance needs.
Choosing a Cost-Effective China Supplier
China has emerged as a leading supplier of transformers, offering a wide range of options that cater to different needs and budgets. Many manufacturers in China provide competitive pricing without sacrificing quality, making it an attractive option for businesses seeking cost-effective solutions.
When evaluating suppliers, it is essential to consider their reputation, product certifications, and customer reviews. A reliable supplier not only ensures that you receive a high-quality transformer but also provides after-sales support and warranty services. This can significantly enhance your investment, ensuring that your transformer operates effectively over its lifespan.
