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    Mike75's Avatar
    Mike75 Posts: 1, Reputation: 1
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    #1

    Nov 22, 2010, 01:41 AM
    If I reduce 60 amperes in a day, how many kilowatts will I save in a day. (400 volts)
    Basically I have a 10 Hp 3 phase motor and when I start it up it gets up to 30 amperes torque and then it runs constantly at 10 amperes. I have put an invertor on this motor and it gradually starts the motor so the ampere torque is no longer relevant. Thus every time I start it I save 20 amperes. I start this about 3 times a day, making it 60 amperes saving. How much will this saving be in kilowatt.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Nov 23, 2010, 03:35 AM
    If single phase, 60 Amps times 400 volts equals 24000 watts, or 24 KW.

    If three phase, 60 amps times 400 volts time 1.73 equals 41520 watts, or 41.25 KW.
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