Woodward

MRA4

    Directional Feeder Protection Device

    MRA4 Directional Feeder Protection

    Application

    The MRA4 is a high precision and reliable protection and control relay. The intuitive setting concept with plausibility test enables reliable and time optimized configuration of the extensive protection function to a variety of applications such as incoming or outgoing feeder protection, network protection and generator protection.

    In fact, the MRA4 is Woodward's interconnection and mains decoupling expert.

    The implemented switchgear management guaranties an efficient and safe control and supervision.

    The device is a bench mark in flexibility and usability and offers various communication options. The hardware is designed for all nominal values in combination with protection and control functionality.

    The parameterizing and analyzing software Smart view is usable for each HighPROTEC device and free of charge.

    Functional Overview

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    MRA4 Functional Overview

    Approvals

     

    UL File Nr.: E217753

    certified regarding UL508 (Industrial Controls)

    CSA File Nr.: 251990

    certified regarding CSA-C22.2 No. 14 (Industrial Controls)

    EAC

    certified by EAC (Eurasian Conformity)

    KEMA

    Type tested (and certified) regarding IEC 60255‑1 and regarding IEC 61850

    TÜV Nord, VDE-AR-N 4110 (2018-11)

    Component certificate regarding the German grid code standard VDE-AR-N 4110 (2018-11)

    KESCO

    동일성 선언서 (Declaration of Identity)

    • Complies with IEEE 1547‑2003

    • Amended by IEEE 1547a‑2014

    • Complies with ANSI C37.90‑2005

    • Complies with “Engineering Recommendation G59 Issue 3 Amendment 4 – July 2018”

    • Complies with “Engineering Recommendation G99 Issue 1 Amendment 3 – May 2018”

    Order Form

    Directional Feeder Protection

     

               

    MRA4

    -2

    #

    #

    #

    #

    #

    Housing

    Display

    Digital Inputs

    Binary output relays

    Analog Inputs

    Analog outputs

               

    B2

    LCD, 128 x 64 pixel

    8

    7

     

    A

           

    B2

    LCD, 128 x 64 pixel

    16

    13

     

    D

           

    B2

    LCD, 128 x 64 pixel

    24

    19

     

    E

           

    B2

    LCD, 128 x 64 pixel

    16

    14

    2

    2

     

    F

           

    Hardware variant 2

           

    Phase Current 5 A/1 A, Ground Current 5 A/1 A

    0

         

    Phase Current 5 A/1 A, Sensitive Ground Current 5 A/1 A

    1

         

    Housing and mounting

         

    Door mounting

    A

       

    Door mounting 19” (flush mounting)

    B

       

    Communication protocol

       

    Without protocol

    A

     

    Modbus RTU, IEC60870-5-103, DNP3.0 RTU | RS485 / terminals*

    B

     

    Modbus TCP, DNP3.0 TCP/UDP, IEC60870-5-104 | Ethernet 100 MB / RJ45*

    C

     

    Profibus-DP | optic fiber / ST connector*

    D

     

    Profibus-DP | RS485 / D-SUB*

    E

     

    Modbus RTU, IEC60870-5-103, DNP3.0 RTU | optic fiber / ST connector*

    F

     

    Modbus RTU, IEC60870-5-103, DNP3.0 RTU | RS485 / D-SUB*

    G

     

    IEC61850, Modbus TCP, DNP3.0 TCP/UDP, IEC60870-5-104 | Ethernet 100MB / RJ45*

    H

     

    IEC60870-5-103, Modbus RTU, DNP3.0 RTU | RS485 / terminals

    Modbus TCP, DNP3.0 TCP/UDP, IEC60870-5-104 | Ethernet 100 MB/RJ45*

    I

     

    IEC61850, Modbus TCP, DNP3.0 TCP/UDP, IEC60870-5-104 | Optical Ethernet 100MB / LC duplex connector*

    K

     

    Modbus TCP, DNP3.0 TCP/UDP, IEC60870-5-104 | Optical Ethernet 100MB / LC duplex connector*

    L

     

    IEC60870-5-103, Modbus RTU, DNP3.0 RTU | RS485 / terminals

    IEC61850, Modbus TCP, DNP3.0 TCP/UDP, IEC60870-5-104 | Ethernet 100 MB / RJ45*

    T

     

    Harsh Environment Option

     

    None

    A

    Conformal Coating

    B

    Available menu languages

    English (USA) / German / Spanish / Russian / Polish / Portuguese (BR) / French / Romanian

    (*) Within every communication option only one communication protocol is usable.

    The parameterizing- and disturbance analyzing software Smart view is included in the delivery of HighPROTEC devices and can be used in parallel via the Ethernet interface.

    All devices are equipped with an IRIG‑B interface for time synchronization.

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    MRA4 ANSI Diagram (Functional Overview)