Multifunction generator and motor protection relay



Perspective view

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    The SIPROTEC 4 7UM61 protection relays can do more than just protect. They also offer numerous additional functions. Be it earth faults, short-circuits, overloads, overvoltage, overfrequency or underfrequency, protection relays assure continued operation of power stations. The SIPROTEC 4 7UM61 protection relay is a compact unit which has been specially developed and designed for the protection of small and medium-sized generators.

    They integrate all the necessary protection functions and are particularly suited for the protection of:

    • Hydro and pumped-storage generators

    • Co-generation stations

    • Private power stations using regenerative energy sources such as wind or biogases

    • Diesel generator stations

    • Gas-turbine power stations

    • Industrial power stations

    • Conventional steam power stations

    The device can also be used for protecting synchronous and asynchronous motors.

    The integrated programmable logic functions (continuous function chart CFC) offer the user high flexibility so that adjustments can easily be made to the varying power station requirements, on the basis of special system conditions.

    The flexible communication interfaces are open for modern communication architectures with the control system.

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