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    MiCOM P64x

    Advanced Protection Relays for Complete Protection and Control of Transformers

    MiCOM P64x series provides fast and complete protection for transformer faults, preserving service life. Designed for two and three winding transformers (including auto-transformers), it is easy to use and the setting wizard requires only nameplate data.

    MiCOM P64x
    • Features

      Transformers are high capital cost assets in electrical power systems. Elimination of all electrical and mechanical stresses, although desirable to preserve transformer life, is impractical. Adaptive techniques to measure and alarm (or trip) in such instances, and advise on cumulative service duty, can help to schedule preventive maintenance – before a costly failure occurs.

      Internal faults are a risk for all transformers, with short-circuits dissipating the highest localized energy. Unless cleared quickly, the possibility to rewind windings reduces, and core damage may become irreparable. MiCOM P642, P643 and P645 Advanced Transformer Protection and Control

      The MiCOM P642, P643 and P645 address all these issues - preserving service life, and offering fast protection for transformer faults. Hosted on an advanced IED platform, the P64x incorporates differential, REF, thermal, and over-fluxing protection, plus backup protection for uncleared external faults. Model variants cover two and three winding transformers (including auto transformers), with up to 5 sets of three-phase CT inputs.

      Large CT counts are common in ring bus/mesh corner applications, where the P64x summates currents to create each total winding current, easing application of backup protection. Backup overcurrent can be directed to the user who has the optional 3-phase VT input in their chosen model.



      Benefits

      • Universal IED for all transformer (or reactor) configurations
      • Protection, control, monitoring, measurements and recording in-one device
      • Backup and logging of through faults
      • Simple to specify, set, and commission
      • Programmable function keys

      Gallery

      • Easergy MiCOM Series P40, available in a range of sizes
      • Easergy MiCOM Series P40 up close
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