| 20kV dry-type distribution transformer SC(B)12-NX3 energy efficiency level 3 |
| Capacity(kVA) | Voltage Combination | Vector group | No load loss(W)(W) | Full Load Loss (W) | Short Circuit Impedance (%) |
| HV(kV) | H.V. Tapping Range | LV(kV) | F(120℃) | H(145℃) |
| 50 | 20 22 24 | ±5%/ ±2×2.5% | 0.4 | Dyn11 Yyn0 | 272 | 1110 | 1180 | 6 |
| 100 | 432 | 1790 | 1920 |
| 160 | 536 | 2220 | 2380 |
| 200 | 584 | 2650 | 2830 |
| 250 | 672 | 3080 | 3290 |
| 315 | 776 | 3670 | 3920 |
| 400 | 920 | 4360 | 4660 |
| 500 | 1080 | 5210 | 5570 |
| 630 | 1220 | 6160 | 6590 |
| 800 | 1400 | 7430 | 7960 |
| 1000 | 1660 | 8800 | 9360 |
| 1250 | 1900 | 10400 | 11100 |
| 1600 | 2230 | 12400 | 13300 |
| 2000 | 2590 | 14700 | 15800 |
| 2500 | 3100 | 17400 | 18600 |
| 2000 | 2590 | 16000 | 17200 | 8 |
| 2500 | 3100 | 19100 | 20400 |
* Above specification may be changed to improve performance.
* Transformer of other specification than listed above can be made to order.
Product Overview 
Company Profile
Guanggao Transformer is a professional transformer manufacturer. We produce single-phase, three-phase, dry-type, distribution, and high-voltage transers (110 kV and above). We meet IEEE/ANSI/UL/CSA and IEC standards. Guanggao Transformer has nearly 25 years of transformer export experience. The company has modern laboratory construction, such as high-voltage test hall, within which there is a 3000kV lightning impulsforme testing device, and some advanced testing equipment, such as CA-21 moisture analyzer from Mitsubishi, American Fluke Ti30 infrared image detector, American RM-3WE three dimensional vibration. And it was identified as the national power transformer energy efficiency testing laboratories in 2011.
The company has undertaken the National Olympic Security Power Project, the National 851 project, the whole construction of the Guangzhou Asian Games, Guangzhou BRT and other important security power projects. The products used in the above projects are highly safe and in a reliable operation throughout the country. Also, these products are exported to Myanmar, Madagascar, Malaysia,other countries. Enjoying a good reputation on the electromechanical market, "Guanggao Brand"was identified as Guangdong famous brand, the product was identified as the National Energy Efficiency Star Products and Brand-Name Products in Guangdong Province.If you have transformer needs, please contact us.
