Oil-Immersed Transformers
Features:
- Possibility to be produced at all voltage levels up to 36 KV and 5 MVA capacity
- Possibility to be installed in high pollution and high humidity environments
- Three layers of color coating (zinc rich - epoxy – polyurethane)
- Color coating with the ability to resist corrosion in high-humidity weather conditions
- Design according to different weather conditions (based on customer needs)
- Possibility of installing all types of protective devices on this equipment
| Technical Specification for Oil Immersed Transformer (11/0.4KV) | ||||||||||||||
| Rated Power (KVA) | 50 | 100 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 | 1600 | 2000 |
| Rated HV/LV Voltage (KV) | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 | 11/0.4 |
| (%) Taps in HV | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 |
| Rated Frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Vector Group | Yzn5 | Yzn5 | Yzn5 | Yzn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 |
| (%) Short Circuit Voltage | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Max. Ambient Temp (oC) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Max.Altitude above sea level (m) | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Rated HV Current (A) | 2.62 | 5.25 | 8.4 | 10.5 | 13.12 | 16.5 | 21 | 26.24 | 33.06 | 41.99 | 52.49 | 65.61 | 83.98 | 104.97 |
| Rated LV Current (A) | 72.2 | 144.3 | 231 | 289 | 361 | 455 | 577 | 722 | 909 | 1155 | 1443 | 1804 | 2309 | 2887 |
| No-Load Losses (W) | 145 | 260 | 375 | 445 | 530 | 625 | 750 | 875 | 940 | 1150 | 1400 | 1730 | 2200 | 2645 |
| Short Circuit Losses in 75oC (W) | 1100 | 1750 | 2350 | 2760 | 3250 | 3850 | 4600 | 5450 | 6750 | 8500 | 10500 | 13200 | 16900 | 21200 |
| Applied Insulation Test Voltage (KV) | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 | 28/3 |
| Technical Specification for Oil Immersed Transformer (20/0.4KV) | ||||||||||||||
| Rated Power (KVA) | 50 | 100 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 | 1600 | 2000 |
| Rated HV/LV Voltage (KV) | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 | 20/0.4 |
| (%) Taps in HV | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 |
| Rated Frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Vector Group | Yzn5 | Yzn5 | Yzn5 | Yzn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 |
| (%) Short Circuit Voltage | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Max. Ambient Temp (oC) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Max. Altitude above sea level (m) | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Rated HV Current (A) | 1.44 | 2.89 | 4.7 | 5.77 | 7.22 | 9.09 | 11.55 | 14.43 | 18.2 | 23.09 | 28.87 | 36.1 | 46.2 | 57.7 |
| Rated LV Current (A) | 72.2 | 144.3 | 231 | 289 | 361 | 455 | 577 | 722 | 909 | 1155 | 1443 | 1804 | 2309 | 2887 |
| No-Load Losses (W) | 145 | 260 | 375 | 440 | 530 | 625 | 750 | 840 | 940 | 1155 | 1400 | 1760 | 2200 | 2800 |
| Short Circuit Losses in 75oC (W) | 1109 | 1776 | 2352 | 2794 | 3234 | 3859 | 4670 | 5455 | 6775 | 8580 | 10450 | 13100 | 16900 | 21300 |
| Applied Insulation Test Voltage (KV) | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 | 50/3 |
| Technical Specification for Oil Immersed Transformer (33/0.4KV) | ||||||||||||||
| Rated Power (KVA) | 50 | 100 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 | 1600 | 2000 |
| Rated HV/LV Voltage (KV) | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 | 33/0.4 |
| (%) Taps in HV | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 | ±2*2.5 |
| Rated Frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Vector Group | Yzn5 | Yzn5 | Yzn5 | Yzn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 | Dyn5 |
| (%) Short Circuit Voltage | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Max. Ambient Temp (oC) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Max.Altitude above sea level (m) | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Rated HV Current (A) | 0.87 | 1.74 | 2.8 | 3.5 | 4.37 | 5.5 | 7.1 | 8.75 | 11.02 | 13.99 | 17.5 | 21.87 | 28 | 35 |
| Rated LV Current (A) | 72.2 | 144.3 | 231 | 289 | 361 | 455 | 577 | 722 | 909 | 1155 | 1443 | 1804 | 2309 | 2887 |
| No-Load Losses (W) | 190 | 320 | 460 | 545 | 650 | 772 | 930 | 1090 | 1300 | 1500 | 1700 | 2100 | 2600 | 3150 |
| Short Circuit Losses in 75oC (W) | 1250 | 1950 | 2550 | 2970 | 3500 | 4105 | 4900 | 5590 | 6500 | 8400 | 10500 | 13500 | 16900 | 21000 |
| Applied Insulation Test Voltage (KV) | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 | 70/3 |
