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MiCOM P44x

MiCOM P44x provides high-speed Distance protection for all overhead lines and cable applications

Part of PowerLogic

MiCOM Px40 Series

MiCOM P34x
  • Features

    MiCOM P44x provides high-speed Distance protection for all overhead lines and cable applications and offers a comprehensive range of protection functions as standard.  It is complemented by various serial and Ethernet communication protocols including IEC61850 and a multi-language HMI featuring English, French, German, Spanish, Russian and Chinese.  Protection is further enhanced by the use of Programmable Scheme Logic within the device.

    The range offers quadrilateral (polygon) or mho characteristics with a long history of high performance, load blinding areas, comprehensive range of teleprotection schemes, Power swing alarm and blocking and Multishot autoreclosure with check synchronism.

    Housed in 40TE, 60TE or 80TE, 4U case sizes, this advanced distance protection range has fault clearance times of 0.7 to 1 cycle depending on model.  P441, P442 and P443 operate on Quadrilateral distance characteristics, whereas P443, P445 and P446 offer Mho distance characteristics.

    Contractual warranty

    Period : 2 years



    Benefits

    Proven experience and fastest operating times

    • Extensive distance protection experience and algorithms using “Delta algorithm”, “Mho” and  Impedance measurement techniques.
    • “Mho” pedigree with over 25 years experience
    • Wide choice of channel aided scheme
    • Relay determines its own settings from protected line data (Mho models)
    • Setting free power swing detection and unblocking for the faults during swings (Mho models)

    Applications

    Multifunctional Distance protection devices with a full range of backup protection functions provides the user to selective protection and to trip for line faults in:

    • Overhead lines and underground cables
    • Lines with multiple zero sequence sources
    • Non-homogeneous lines, series compensated lines, parallel lines
    • Distribution to Transmission Voltage levels

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