Welding Transformers TK-301, TK-302, TK-401, TK-501 for Resistance Welders
The welding transformers TK-301, TK-302, TK-401 and TK-501 are designed for use in resistance welders (welding units) as sources of welding current. The transformers are water-cooled. The enclosure variant is UHL4.Technical description:
| Specifications | TK-301 | TK-302 | TK-401 | TK-501 |
|---|---|---|---|---|
| Rated mains voltage at 50 Hz, V | 380 | 380 | 380 | 380 |
| Continuous current at single secondary loop, kA, at least | 2,80 | 3,20 | 3,55 | 4,55 |
| Continuous secondary current of the transformer with parallel connection of the loops, kA, at least | 5,60 | 6,40 | 7,10 | 9,1 |
| Power at 50% duty cycle at the maximum control step, kVA, at least | 40 | 63 | 100 | 180 |
| Rated voltage of the primary winding, V | 365 | 365 | 365 | 365 |
| Open-circuit secondary voltage by adjustment steps, V ±2.5%: | ||||
| 1 | 3,0 | 5,0 | 7,0 | 9,6 |
| 2 | 3,6 | 5,7 | 8,0 | 10,7 |
| 3 | 4.2 | 6,2 | 8,9 | 12,2 |
| 4 | 5,0 | 7,0 | 10,0 | 14,0 |
| Isolation class | F | F | F | F |
| Cooling water consumption, l/min, at least | 4 | 4 | 4 | 5 |
| Overall dimensions, mm: | ||||
| length | 184 | 184 | 184 | 240 |
| width | 470 | 560 | 695 | 790 |
| height | 235 | 235 | 235 | 320 |
| Weight, kg, below | 80 | 100 | 135 | 260 |
