These spreadsheets below will make your endless calculations much more easier!

  • Calculation of IDMT Over Current Relay Settings (50/51/50N/51N)
  • Calculation model for thermal relay Siemens 7SJ64
  • Motor Protection Relay Selection Curves
  • Over current protection – INVERSE TIME O/C PROTECTION CALC – 51(N) – Directional OC – Primary & secondary current calculation
  • Filter Design Calculation
  • P63x Differential CurrentsCalculation MiCOM P634/P633/P632
  • Calculating the operation current in Bias Differential Relays MiCOM P633
  • POINT-TO-POINT METHOD OF SHORT CIRCUIT CALCULATIONS
  • SLOPE CALCULATION OF LINE DIFF RELAY P543
  • TMS Calculate


Download Helpful Excel Spreadsheets for Protection Engineers packageĀ 

This package contains 10 excel files.

Size : 908 KB

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12 Replies to “Helpful Excel Spreadsheets for Protection Engineers”

  1. avatar

    I need an excel sheet for the transformer differential protection relay RET615. The input will be the relay settings, and it should be capable of calculating Ida, Idb, Idc and Ira, Irb, Irc under any combination of injected phase currents, for any vector group of the transformer

    1. avatar

      Yahya, let us check our database if find any helpful file will inform you.

    2. avatar

      Pak saya memerlukan Excel untuk perhitunga OC,SC,EF LOW DAN HIGHT,diffential untuk rellay RED615

      1. avatar

        the mentioned excel file is not available with us at this time

    3. avatar

      perlu lembar excel untuk relay perlindungan diferensial transformator RED615. Input akan menjadi pengaturan relai, dan harus mampu menghitung Ida, Idb, Idc dan Ira, Irb, Irc di bawah kombinasi arus fasa apa pun yang disuntikkan, untuk semua grup vektor transformator

      1. avatar

        Already replied, this excel file is not available with us

  2. avatar

    Hello i need an excel sheet to calculate the over current protection for a substation with the Siemens over current relay (TYPE 7SJ5511-5CA02-OB).
    thanks

    1. avatar

      Ok, Let Us check and if find, we will send you by tomorrow

  3. avatar

    Downloaded, very helpful

  4. avatar

    May I select some file?

  5. avatar

    Pak saya memerlukan Excel untuk perhitunga OC,SC,EF LOW DAN HIGHT,diffential untuk rellay RED615