Small-Sized Welding Transformers TK-20, TK-25, TK-32
The transformers are designed for incorporation into gun-type welders of robots and manipulators already being used for resistance welding. They are manufactured in the UHL climatic variant of the 4th placement category according to GOST 15150-69.The transformers are water-cooled and have winding overheating protection. Depending on the transformer power and flexible busbar connection location the following variants of the transformers are available: 6YUR.172.108, 6YUR.172.108-01, 6YUR.172.108-02, 6YUR.172.108-03, 6YUR.172.108-04 and 6YUR.172.108-05. The 108, 108-01 and 108-02 variants have lateral apertures for busbar connections, while the other variants have end apertures.
The transformers can be connected laterally to the welding equipment from either side.
Technical description:
| Parameters | Standard value | ||
|---|---|---|---|
| 6BR.172.108. 6YUR. 172.108-03 | 6YUR.172 108-01 6YUR 172.108-04 | 6YUR.172.108-02 6YUR 172 108-05 | |
| TK-20 | TK-25 | TK-32 | |
| Rated mains voltage, V | 380 | 380 | 380 |
| Rated supply frequency, Hz | 50 | 50 | 50 |
| Rated power at 50% duty cycle, kVA | 20 | 25 | 32 |
| Rated open-circuit voltage of the secondary winding, V | 3,6 | 4,5 | 5,6 |
| Continuous secondary current, kA | 4,0 | 4.0 | 4.0 |
| Isolation class | F | F | F |
| Cooling water consumption at input pressure 1.47x105 Pa (1.5 kgf/cm2), l/min, at least | 4,0 | 4,0 | 4,0 |
| Overall dimensions, mm, not exceeding | 112x150x225 | 112x150x250 | 112x150x275 |
| Weight, kg, below | 17 | 20 | 22 |
