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Recent content by mcarruthers

  1. mcarruthers

    Motor Design Characteristics

    so 415/366v = 120% so to get the same characteristics out of the motor I would have to drop the voltage to 366.7V. but if 366V x 120% that gives you 440V. Cofused sorry
  2. mcarruthers

    Motor Design Characteristics

    The voltage also cannot be made smaller Thanks
  3. mcarruthers

    Motor Design Characteristics

    Waross thanks so what current will the motor pull Is the calculation 1830Kw/1.732x415VxPF0.86=2.96A PF is 0.86 not .74 as stated Cheers
  4. mcarruthers

    Motor Design Characteristics

    The motor is coneected to a pump 2.2Kw(no Belts) Coupling. This pump 2.2kw is taking place of a 4kw pump so maximum is required. Please could you show all calculations so I can show my boss that it may not be possible or to show that it may have discrepencys Thankyou
  5. mcarruthers

    Motor Design Characteristics

    I need Help? I have a motor 440V,2.2KW, 60Hz, 3460rpm, 3.9A PF=0.74, 3 phase. It requires to be installed into a 415V 50Hz system is it possible and what will the above values change to? Please if possible show all workings out cos I am stuck Cheers!
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