EEMC manufactures three-phase open-type transformers:
– Open-type transformer, immersed in oil, adjustable at voltage 35 / 0.4; 22 / 0.4; 35/22 / 0.4; 10 / 0.4kV.
– Tested to standards.
– Products have been supplied to electricity units put into operation safely on the grid.
A transformer is an electrical device that changes the voltage of the alternating current from one level to another. Open-type transformers (with oil separators) are distributed with 35kV, 22kV, 10kV voltage, 0.4kV voltage, soaked in standard insulating oil.
Products manufactured by the Corporation, tested according to TCVN 6306-1: 2015 (IEC 60076-1: 2011) and TCVN 8525: 2015. The main raw materials are composed of: Korea; Silent wires / coated paper from copper M1; Insulating oils from Sweden, India, Malaysia. Voltage regulation from Italy. Insulating paper: Germany, Sweden. Cross-cut and cut-off circuits on G7; Wiring is performed on specialized equipment; The vacuum washer.
Photo:
Diagram:
| TT | Capacity (kVA) |
No load loss Po (W) |
Short circuit loss Pk (W) |
No load current Io (%) |
Short circuit voltage Uk (%) |
Energy efficiency E50% |
| 1 | 50 | 120 | 715 | 2 | 4-6 | 98.820 |
| 2 | 75 | 165 | 985 | 2 | 4-6 | 98.920 |
| 3 | 100 | 205 | 1250 | 2 | 4-6 | 98.980 |
| 4 | 160 | 280 | 1940 | 2 | 4-6 | 99.050 |
| 5 | 180 | 295 | 2090 | 2 | 4-6 | 99.100 |
| 6 | 250 | 340 | 2600 | 2 | 4-6 | 99.210 |
| 7 | 320 | 385 | 3170 | 2 | 4-6 | 99.270 |
| 8 | 400 | 433 | 3820 | 2 | 4-6 | 99.310 |
| 9 | 500 | 525 | 4440 | 2 | 4-6 | 99.350 |
| 10 | 560 | 580 | 4810 | 2 | 4-6 | 99.370 |
| 11 | 630 | 780 | 5570 | 2 | 4-6 | 99.320 |
| 12 | 750 | 845 | 6540 | 2 | 4-6 | 99.340 |
| 13 | 800 | 872 | 6942 | 2 | 4-6 | 99.350 |
| 14 | 1000 | 980 | 8550 | 2 | 4-6 | 99.380 |
| 15 | 1250 | 1115 | 10690 | 2 | 4-6 | 99.400 |
| 16 | 1500 | 1250 | 12880 | 1.5 | 4-6 | 99.410 |
| 17 | 1600 | 1305 | 13680 | 1.5 | 4-6 | 99.410 |
| 18 | 1800 | 1400 | 15400 | 1 | 5-7 | 99.420 |
| 19 | 2000 | 1500 | 17100 | 1 | 5-7 | 99.430 |
| 20 | 2500 | 1850 | 21000 | 1 | 5-7 | 99.440 |
