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[ MC-LINE] 

 

  • General Functionality

    The MC is a very innovative and versatile line of Protective Relays which takes advantage of the long and successful experience coming from the M-Line.
    The main features of the MC-Line relays are:
    - Compact draw-out execution for Flush Mounting or for assembly in 19” 3U chassis for 19” Rack systems.
    - User friendly front face with 2x8 characters LCD Display, four signal Leds, four keys for complete local management and 9-pin socket for local RS232 serial communication.
    - Four user programmable Output Relays. On request one of the Output Relays can be replaced by a Can Bus port for control of additional I/O modules.
    - Three optoisolated, selfpowered Digital Inputs.
    - RS485 communication port (independent from the RS232 port on front panel)
    - Totally draw-out execution with automatic C.T. shorting device.
    - Input currents are supplied to 3 current transformers: measuring phase currents.
    - An additional internal CT directly measures the residual (Zero Sequence) current of the three inputs.
    - Current inputs can be 1 or 5A: selection between 1A or 5A is made by movable jumpers provided on the Relay card.

  • Products
    CURRENT RELAYS

    A complete range of multifunction three-phase + ground relays with selectable and programmable time-current curves. All fitted with digital input/output for selectivity interlock. Versatile and suitable for any application in HV, MV, LV.
     MC20
     Overcurrent and Earth Fault Relay
     50/51, 50N/51N, 51BF

    - Three Phase-Fault elements
    - Three Earth-Fault elements
    - Time current curves selectable
    according to IEC/IEEE standards.
    - User programmable output relay
    - Trip Circuit Breacker control via
    serial port.
    - Blocking Output and Blocking input.
    - Breaker Failure protection
    - Oscillographic wave form capture
    - Time tagged multiple event recording.
    - Modbus RTU / IEC870-5-103 Protocol
    - Display LCD 16 (2x8) characters

    		  
     Download Catalogue
     
     
     MC20-R
     Overcurrent and Earth Fault + Autoreclosing Relay
     50/51, 50N/51N, 51BF, 79
    - Three Phase-Fault elements
    - Three Earth-Fault elements
    - Time current curves selectable according
    to IEC/IEEE standards
    - Four/shot programmable Autorelosing
    - Reclosure sequence coordination
    - User programmable output relay
    - Trip Circuit Breacker control via
    serial port
    - Blocking Output and Blocking input.
    - Breaker Failure protection
    - Oscillographic wave form capture
    - Time tagged multiple event recording.
    - Modbus RTU / IEC870-5-103 Protocol
    - Display LCD 16 (2x8) characters
    		  Download Catalogue
     
     MC30
     Three-Phase Overcurrent and Earth Fault Relay
     50/51, 50N/51N, 51BF
    - Three independent overcurrent elements
    - Three Earth-Fault elements
    - One Thermal Image element
    - Time current curves selectable according
    to IEC/IEEE standards
    - User programmable output relay
    - Trip Circuit Breacker control
    via serial port
    - Blocking Output and Blocking input.
    - Breaker Failure protection
    - Oscillographic wave form capture
    - Time tagged multiple event recording.
    - Modbus RTU / IEC870-5-103 Protocol
    - Display LCD 16 (2x8) characters
    		  Download Catalogue
     
     MCVA
     MULTIFUNCTION DIRECTIONAL &
     NON-DIRECTIONAL EARTH FAULT RELAY
     50N/51N,51BF,59Uo(64),67N,68,74
    - Three Directional / Non-Directional
    Earth-fault elements.
    - Two Zero Sequence Overvoltage element
    (Machine earth fault protection).
    - Blocking Output and Blocking Input for pilot wire selectivity coordination.
    - Breaker Failure protection
    - Time tagged multiple event recording
    - Modbus RTU / IEC870-5-103
    - Communication Protocols
    Display LCD 16 (2x8) characters
    - Breaker Failure protection
    - Oscillographic wave form capture
    - Time tagged multiple event recording.
    - Modbus RTU / IEC870-5-103 Protocol
    - Display LCD 16 (2x8) characters
    		  Download Catalogue
     
     
    VOLTAGE RELAYS
    A complete range of multifunction Single/Three-phase. All fitted with digital input/output for selectivity interlock. Versatile and suitable for any application in HV, MV, LV.
     MC1V
     Multifunction Single-Phase Overvoltage/Undervoltage Relay
     27, 59, 81
    - Two undervoltage elements
    - Two overvoltage elements
    - One underfrequency elements
    - One overfrequency elements
    - User programmable output relay
    - Blocking Output and Blocking input.
    - Oscillographic wave form capture
    - Time tagged multiple event recording.
    - Modbus RTU / IEC870-5-103 Protocol
    - Display LCD 16 (2x8) characters
    		  Download Catalogue
     
     MC3V
     Multifunction Three-Phase Overvoltage/Undervoltage Relay
     27, 47, 59, 59Vo, 81
    - Two undervoltage elements
    - Two overvoltage elements
    - One underfrequency elements
    - One overfrequency elements
    - One zero sequence overvoltage element
    - One negative sequence overvoltage element
    - One positive sequence undervoltage element
    - User programmable output relay
    - Blocking Output and Blocking input.
    - Oscillographic wave form capture
    - Time tagged multiple event recording.
    - Modbus RTU / IEC870-5-103 Protocol
    - Display LCD 16 (2x8) characters    		  Download Catalogue
     
    Other type of relays at www.microelettrica.com

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SOME OF THE REFERENCES:

PT. PLN (Persero)
PT. Meta Epsi Engineering
PT. Areva T&D
PT. Aryasada Persada
PT. Siemens Indonesia
PT. Guna Era Manufaktura
PT. Unindo
PT. Schneider Indonesia
PT. Krakatau Steel

[ COMPLETE REFERENCES ]

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