THT 102

Electronic power sources for ARC-AIR and MMA welding

High-power electronic DC power source for use in arc-air gouging and MMA welding with acid, low-hydrogen, stainless steel, aluminium and cellulose electrodes. Use: heavy structural steel works in the shipbuilding and offshore industry.
Welding process
  • ARC AIR/SCRICCATURA
  • SUBMERGED ARC
  • MMA
Technology:
  • Traditional
  • Three-phase
Manufacturing standard
  • EN 60974
CONTATTACI
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The THT102 and THT 152 are thyristor-controlled welding machines designed for use in submerged arc welding with single-wire or twin-wire systems. Welding voltage can be adjusted either on the front panel of the machine or on the welding bead wire feeder. Welding current (Amps) can be adjusted on the wire feeder. The power source is characterized by a double-bridge rectifier which assures a very smooth arc and a perfect weld head at any current values. It can work either at constant voltage (flat characteristic)if used in submerged arc welding, or at contant current (sloping characteristic) if used for arc-air gouging.

Main voltage 3x400 V
50-60 HZ
Delayed line fuse 80 A - 400 V
Max. absorbed power 59 kVA
Current range 70÷1000 A
CURRENT REGULATION LINEARE
Duty factor 100% 1000A
No-load voltage 20÷46 V
No-load voltage 95 V
Ø submerged arc wire 2.4÷5.0
Ø arc-air electrodes 5.0÷13.0
Protection class IP23S
Weight 500 kg
Dimension (WxDxH) 590x1100x1200 mm
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VARIANTS

Main voltage

Delayed line fuse

Max. absorbed power

Current range

Duty factor

No-load voltage

No-load voltage

THT 102

3x400 V
50-60 HZ

80 A - 400 V

59 kVA

70÷1000 A

100% 1000A

20÷46 V

95 V

THT 152

3x400 V
50-60 HZ

125 A - 400 V

89 kVA

70÷1500 A

100% 1500A