COMTRAFO Transformers
Three-phase transformer, built with a corrugated tank, with a sealed integral filling system, ideal for installations with limited physical space. Manufactured in insulating liquid in accordance with ABNT NBR, IEC and ANSI / IEEE standards and other specific standards of all utilities and/or customers.
Compact Transformer
Powers ranges from 225 kVA to 10,000 kVA
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HV: Class 7.2 kV, 15 kV, 25 kV and 36 kV
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LV: Class 1.2 kV, 7.2 kV and 15 kV
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Installation: Cabins or substations / Indoor/outdoor environments, regular or aggressive.
Main characteristics:
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HV and LV coils composed of 99.99% pure electrolytic copper or aluminum.
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Core made from grain-oriented silicon steel sheets, thus ensuring lower losses attributed to parasitic currents.
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Enclosure made from carbon steel, featuring surface treatment via abrasive blasting, anti-corrosion protection by primer application and final painting by flooding system.
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Active part is dried in an oven, ensuring moisture elimination inside the equipment.
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Final assembly, closing and filling occur in a controlled environment.
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Comprehensive final testing is conducted, accompained by the issueance of corresponding reports.
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Insulated in mineral oil or special fluids (silicone oil, biodegradable vegetable oil.)