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  • General Functionality

    The series of electronic relays herebelow presented has been designed according to the most advanced technologies in order to obtain the highest reliability, accuracy and immunity to interference and is made with first choice components safely dimensioned and protected. The application of severe testing and quality control procedures guarantees the reliability of the product. UNI EN ISO 9001 (ISO 9001) Quality Assurance Certified System.

    The main features are the following:

    - Measuring inputs supplied through internal adaptor transformers;

    - Multivoltage a.c. and d.c. autoranging power supply unit;

    - Draw-out modular execution on standard european size P.C. boards;

    - Fiberglass reinforced epoxy resin P.C. boards with tinplated copper tracks, solder mask, special silicon humidity protection and screen printed component designators;

    - P.C. board connectors with golden plated pins rated 10A continuous and 200A 1sec.

    IEEE/ANSI PROTECTION FUNCTION TABLE

    Type of relay can be selected based on Protection Function (detail)

  • Products
    THREE-PHASE CURRENT RELAYS
     PB3
     DUAL LEVEL CURRENT RELAY
     49, 50, 51

     PB3/S
     PB3/I
     PB3/VI
     PB3/EI
     PB3/IM



    - Function 51 Definite time + Function 50 Definite time
    - Function 51 Inverse time + Function 50 Definite time
    - Function 51 Very Inverse time + Function 50 Definite time
    - Function 51 Extremely Inverse time + Function 50 Definite time
    - Function 49 Thermal Image + Function 50 Definite time
     
     
     

     SB3
     NEGATIVE SEQUENCE CURRENT PROTECTION RELAY
     46
     SB3/D
     SB3/I  
     SB3/IM  
    		- Function 46 Definite time
    - Function 46 Inverse time
    - Function 46 Thermal Image
     
    EARTH FAULT CURRENT RELAYS
     UB0/A
     EARTH FAULT CURRENT RELAY DESENSITISED
     TO THE THIRD HARMONIC
     51N
     UB0/A-D
     UB0/A-I
    		- Function 51N Definite time
    - Function 51N Inversetime


     PB0
     DUAL LEVEL EARTH FAULT RELAY
     50N, 51N

     PB0/S
     PB0/I
     PB0/VI
     PB0/EI
    - Function 51N Definite time + Function 50N Definite time
    - Function 51N Inverse time + Function 50N Definite time
    - Function 51N Very Inverse time + Function 50N Definite time
    - Function 51N Extremely Inv. time + Function 50N Definite time
    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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