Reactive power compensation for welding machine transformers
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Our company has recently acquired a 1000KVA butt welding machine. Is there a dedicated transformer available? How to perform reactive power compensation using a regular transformer? Thank you
Arc welders require a large amount of reactive power not only when idle but also when under load; capacitors (which can be those in good condition taken out from maintenance capacitor banks) are used to provide reactive power compensation for AC arc welders. Connecting a suitable capacitor in parallel to the primary coil of the arc welding machine transformer can improve its power factor.