Furnace Transformer
Arc furnaces operated by direct current use a transformer / rectifier combination as energy source. The rectifier will be a thyristor type, defining the transformer parameters. The rectifier system is mostly a 12-pulse bridge, requiring two secondary and primary systems in the transformer. The regular transformer arrangement is a double-decker layout, with the possibility of an intermediate yoke. The fine regulation of the furnace dc voltage is done by the rectifier itself. The coarse regulation is mostly done by applying a tap changer in the hv winding. This is normally done using a no-load tap changer (nltc) important operational conditions to take into account are primarily related to actual current harmonics and the cyclic thermal and mechanical stresses in operation. Dc furnace transformers also need adequate voltage protection due to operational generated over voltages. guarantee: our transformers are guaranteed against manufacturing defect for a period of 24 months from the date of dispatch.
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C84, Phase 2, Extension Hosiery Complex, Hosiery Complex Noida - 201305, Gautam Budh Nagar, Uttar Pradesh, India
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