Welding transformer, high-current transformer, transformer for spot welding machines, resistance wel

ELREX 3x ET70.0.G

Welding transformer, high-current transformer, transformer
for spot welding machines, resistance welding machines, roll seam welding machines
ELREX Type 3x ET70.0.G
Mfg. No. Year of manufacture approx. 1990
Consisting of three water-cooled transformers with a water-cooled rectifier block
Performance data:
Total power at 50% duty cycle 210 kVA (total power from 3 transformers)
Secondary voltage 7 - 10.5 volts (adjustable in 4 steps via connection terminals on the transformer)
Secondary current at 50% duty cycle 20.1 kA (total power from 3 transformers)
Primary connection 380 volts, 50 Hz (three phases)
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Consisting of three transformers - data for a single transformer:
Power at 50% duty cycle 70 kVA (power per transformer)
Secondary voltage 7 - 10.5 volts (adjustable in 4 steps via connection terminals on the transformer)
Secondary current at 50% duty cycle 6.7 kA (per transformer)
Primary connection 380 volts, 50 Hz (two phases)
Cooling water requirement per transformer 4 liters/min.
Insulation class F
- Water-cooled transformer
- A water-cooled rectifier block is located on the secondary side.
- Connection of the DC power output via contact surfaces 50x50mm with M20x1.5mm thread
- Temperature monitor on each rectifier element and on each transformer coil
- Connection cable 7-core, cross-section 50 mm², length approx. 6 m
Overall dimensions WxHxD 700 x 710 x 440 mm
Total weight 480 kg
in good condition

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