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Product Description
Application
This transformer is the powerhouse behind all varieties of intermediate frequency and power frequency resistance welding machines, such as those used in automotive welding clamps.
Also adaptable for seam welding machines, precision mesh welding machines, and more.
Brief introduction
Experience the cutting edge of resistance welding technology with our Medium-frequency (MF) transformers, a hallmark of modern innovation.
Our advanced technology uses a transistor inverter to deliver a potent square wave AC at 500 V and 1000 Hz, seamlessly transformed by the MF transformer into low voltage and high current AC for superior efficiency.
This AC is expertly rectified to DC by an integrated diode block, ensuring top-tier performance.
The elevated operating frequency of our MF system allows for outstanding energy conversion, utilizing a compact and lightweight transformer.
Enhanced Benefits: MF transformers shine when deployed in portable and robotic welding guns, offering unmatched performance.
The welding loop's reactance finely tunes the upslope and downslope of the welding current, ensuring precision control.
The resistance of the welding loop dictates the peak welding current, optimizing efficiency.
This results in a remarkably compact transformer, ideal for large throat, high-impedance welding guns.
Our MF welding technology is engineered to impose minimal demands on the plant power system.
It features an MF inverter that draws a balanced line current across all three phases, operating at an impressive power factor of 0.9.
MF transformers ensure the peak welding current is nearly equivalent to its RMS value, promoting splash-free, consistently strong welds even under reduced pressure settings.
The high frequency allows for remarkably rapid process control-1000 times per second-leading to superior weld quality.
| TYPE | MF170-3G | |
| primary nominal voltage | V | 500 |
| nominal power at 20%ED | kVA | 170 |
| nominal power at 50%ED | kVA | 105 |
| nominal power at 100%ED | kVA | 75 |
| secondary voltage | V | 9 |
| permanent DC current 100% | A | 8500 |
| Short circuit current | KA | 38 |
| turns ratio | N1 / N2 | 55:1 |
| weight | kg | 20 |
| temperatur switch | 2 x 150 °C, 1 x 70 °C Temperature switch | |
| insulation class | F (155 °C) | |
| Current measuring coil | 150mV/KA ±3% | |
| Size | mm | 160X130X256 |
| cooling water < 30°C | L/ min | 8 |
| pressure drop | Mpa | <0.2 |
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