 Inroduction:
It is designed to meet the needs of heavy type of jobs like: Rolling Mills, Sugar Mills. Shipyards, Maintenance of Machinery and all type of heavy fabricaion.
The set consists of a Heavy Duty transformer housed and secured by means of nuts and bolts in a heavy gauge steel plate tank with heavily wounded Primary and Secondary coils submerged in oil to provide cooling. The current is controlled by means of Air Gap between Primary & Secondary Coil.
The Sterco Arc welding transformers are manufactured in accordance with IS : 1851 (1997) specifications and mounted on three Cast Iron / Rubber wheels with front wheel swiveling and steerable by means of draw bar.
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| Technical Specifications |
| Model |
SRT - 1 |
SRT - 2 |
SRT - 3 |
SRT - 7 |
| Welding Currentregulator |
Stepless Regulator |
| Maximum output Amps |
250 |
350 |
450 |
600 |
| Maximum continuous hand welding currentat 60% duty cycles Amps |
200 |
300 |
400 |
500 |
| Continuous hand welding currentat 100% duty cycles Amps |
120 |
180 |
240 |
360 |
| Minimum hand welding current Amps. |
50 |
50 |
50 |
100 |
| Maximum electrodes size in mm. |
4 |
5 |
6 |
7 |
| Minimum electrode size in mm. |
2 |
2 |
2.5 |
3 |
| Intermediate electrode size in mm. |
5 |
6 |
7 |
8 |
| Open Circuit Voltage |
65 |
65 |
65 |
65 |
| Maximum welding voltage |
30 |
34 |
38 |
44 |
| Minimum welding voltage |
22 |
22 |
22 |
24 |
| Primary circuit |
380 / 440 V 50 Hz, ( 2 phase of 3 phase A.C. Mains ) |
| K.V.A. Rating Maximum continuous hand welding current |
13 |
19.5 |
26 |
32.5 KVA |
| K.V.A. Rating according to IS |
7.8 |
12 |
16 |
24 KVA |
| Insulation class |
A |
A |
A |
A |
| Dimensions App. ( L x B x H ) |
24 x 17 x24 |
30 x 18 x 24 |
31 x 19 x 24 |
32 x 20 x 24 |
| Nettweight without Oil ( Apprx. ) |
190 Kg. |
250 Kg. |
290 Kg. |
375 Kg. |
| Oil Capacity ( in litres ) |
110 |
120 |
140 |
180 |
