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    Likytrfe 432

    Uploaded by

    Elsayed Abdelmagid Mohamed
    This document contains calculations to determine the load requirements for a motor and generator. It calculates the full load kW, kVA, and current of a 120kW motor. It then determines the starting kVA and current requirements when using an auto transformer starter. It sums the starting kVA and current of all equipment. Finally, it calculates the running kVA, current, and required size of a diesel generator to power the equipment, including a 10% expansion factor and 80% average equipment use.

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    Likytrfe 432

    Uploaded by

    Elsayed Abdelmagid Mohamed
    17 views1 page
    This document contains calculations to determine the load requirements for a motor and generator. It calculates the full load kW, kVA, and current of a 120kW motor. It then determines the starting kVA and current requirements when using an auto transformer starter. It sums the starting kVA and current of all equipment. Finally, it calculates the running kVA, current, and required size of a diesel generator to power the equipment, including a 10% expansion factor and 80% average equipment use.

    Original Description:

    lightyred342

    Original Title

    likytrfe432

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    This document contains calculations to determine the load requirements for a motor and generator. It calculates the full load kW, kVA, and current of a 120kW motor. It then determines the starting kVA and current requirements when using an auto transformer starter. It sums the starting kVA and current of all equipment. Finally, it calculates the running kVA, current, and required size of a diesel generator to power the equipment, including a 10% expansion factor and 80% average equipment use.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    17 views1 page

    Likytrfe 432

    Uploaded by

    Elsayed Abdelmagid Mohamed
    This document contains calculations to determine the load requirements for a motor and generator. It calculates the full load kW, kVA, and current of a 120kW motor. It then determines the starting kVA and current requirements when using an auto transformer starter. It sums the starting kVA and current of all equipment. Finally, it calculates the running kVA, current, and required size of a diesel generator to power the equipment, including a 10% expansion factor and 80% average equipment use.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    of 1

    Load Calculation-5:

    Full Load KW of Motor=(No X Watt X Diversity Factor) /1000


    Full Load KW of Motor =(1x120000x0.8)/1000=96KW
    Full Load KVA of Motor =KW / P.F
    Full Load KVA of Motor =96 / 0.8=120KVA(L)
    Full Load current of Motor =(No X Watt X Diversity Factor) / (Volt x P.F)
    Full Load current of Motor =(1x120000x0.8) / (1.732x430x0.8) =167 Amp
    -(Q)
    Type of Starter=Auto Transformer
    Starting KVA of Motor =3 X (KW / Starting P.F)
    Starting KVA of Motor=3 X (96 / 0.7)=411.4KVA(5)
    Starting Current=3 X Full Load Current
    Starting Current=3 X 167 = 501 Amp.(E)

    Total Load Calculation:

    Total Starting KVA = (1) + (2) +(3) + (4) + (5)


    Total Starting KVA =0.4+9.6+1.6+45.7+411.4 =468.7 KVA
    Total Starting Current = (A) + (B) +(C) + (D) + E
    Total Starting Current =2+42+7+174+501= 725 Amp
    Total Running KVA =(H)+(I)+(J)+(K)+(L)
    Total Running KVA =4+6+1+10+120= 137KVA
    Total Running Current=(M)+(N)+(O)+(P)+(Q)
    Total Running Current=2+26+4+43+167= 242 Amp
    Size of Diesel Generator= Starting KVA X Future Expansion X Average
    Use of Equipments
    Size of Diesel Generator=468.7 X 1.1 X 0.8
    Size of Diesel Generator= 412 KVA

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