Arc Welding Machines - 01

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Process

300ST and 450ST welding transformers per IS1851 (Part !) .They are designed yo made the requirements of medium and heavy Constructional work demanding high duty cycle and prolonged use of large electordes .The sets operations at 80 to 100 volts selected by means of two position snap - action rotary switch. the current selector plate is illuminated and a cable when no in use . Two snap action rotary switch enable different current settings each at 80 and 100 volts open circuit voltages to be rapidly selected through and oil cooled welding current requlator.

Optional GTWA (TIG) Accessiries

Gas & water cooled TIG torches.

Tigniter 400 with foot switch.

D.C. plug unit of convert AC to D.C.

gas flow meter and pressure requlater.

Water cooling system

Model	300 ST	450 ST
Input
Supply Voltage Range	390/ 415/440 V 2 Lines of 3ph.Supply	390/ 415/440 V 2 Lines of 3ph.Supply
Frequency	50 Hz	50 Hz
Input Current at rated output 415 Supply	48 A	68 A
KVA rating : Continuous	12 KVA	16.8 KVA
A 60 % duty Cycle	20 KVA	28 KVA
Maximum	24 KVA	36 KVA
Output
Open Circuit Voltage	80 & 100 V	80 & 100 V
Welding Current range at 80 OCV	25 to 300A	80 to 450
at 100 OCV	30 to 240A	100 to 360A
Maximum Continuous Hand welding machine ( 60 % duty cycle )
at 80 OCV	250 A	350 A
at 100 OCV	200 A	280 A
No. Of setting at 80 OCV	49	42
at 100 OCV	49	42
Qty. of transformer oil required	105 Litres ( approx)	105 Litres ( approx)
Dimension ( LxHxB) in mm	860x550x865	860x550x1080
Approx . Weight (kg) Without Oil	200 Kg	280 Kg

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