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  • M-PRO17 MicroprocessorProtection Relay

    1 Overload rotary setting switch

    2.Short circuit and time delay rotary setting switches

    3.Earth fault and time delay rotary setting switches

    4.Selectable manual reset button

    5.Overload and short circuit protection curve symbol

    6.Earth fault protection curve symbol

    7.Healthy LED

    8.Multi-pin socket for test box and/or portable

    power box

    M-PRO20-40 MicroprocessorProtection Relays

    1.Overload/short circuit protection curve

    incorporating 7 red LEDs; indication of fault type

    2.Earth fault protection curve incorporating 2 red

    LEDs for fault indication

    3.LCD 2-line display for clear indication of menus,

    settings, recorded information

    4. Warn/Alarm LED

    5.Healthy LED

    6.Selectable Manual-/Automatic-reset button

    7.Four button tactile key pad

    8.Multi-pin socket for test box and/or portable

    power box

    A.12

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    GE Power Controls

    3

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    GE Power Controls

    Trip Curves

    M-PRO 17

    Current I (x Ir, the sensor rating)

    Tim

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  • A.15

    A

    M-P

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    T

    Trip Curves

    M-PRO 17

    Current I (x Ir, the sensor rating)

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  • A.16

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    GE Power Controls

    Earth Fault Protection Curves

    M-PRO 17

    Current I (x Ir, the sensor rating)

    Tim

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  • A.17

    A

    M-P

    AC

    T

    Earth Fault Protection Curves

    M-PRO 17

    Current I (x Ir, the sensor rating)

    Tim

    e t

    o t

    rip

    in

    se

    co

    nd

    s (

    s)