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Thread: I want to know about adjustable speed machine (ASM). Can anyone help me, plz?

  1. #1

    Default I want to know about adjustable speed machine (ASM). Can anyone help me, plz?

    I'm finding somei nformations about ASM, especially about its application in power system to maintain voltage after disturbance and when and where it needs to set, some advantage of using it incomparison with other devices, such as STATCOM, SVCs. Help me, many thanks!

  2. #2
    Electrical Contractor/Instructor jwelectric's Avatar
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    Default

    What appliciation will you be using this device on?

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    Plumber jimbo's Avatar
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    Default Now, THIS is an adjustable speed machine!


  4. #4

    Default Thank u for your attension

    Thank u for your attention, but its application in power system, it can be used as a generator, generate both active power and reactive power, both of them can be control independently. Can u tell me more its effects in maintaining voltage after disturbance such as load shelding, earth fault,... to avoid voltage instability

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    Electrical Contractor/Instructor jwelectric's Avatar
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    Quote Originally Posted by vihotruki View Post
    earth fault,... to avoid voltage instability
    How do you have an "earth fault"?

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    Moderator & Master Plumber hj's Avatar
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    Default earth fault

    Probably British/European for ground fault.

  7. #7

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    Is this one of the flywheel UPS systems? And yes it will be an “earthing fault” with the 08 NEC. Would you drive this earthing rod for me?

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    Electrical Contractor/Instructor jwelectric's Avatar
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    Quote Originally Posted by got_nailed View Post
    Is this one of the flywheel UPS systems? And yes it will be an “earthing fault” with the 08 NEC. Would you drive this earthing rod for me?
    Again I ask just how do you have an earth fault?

    The only way that I know to have an earth fault would be to connect the hot conductor to earth.

    just how do you have an earth fault?

    Also where are you finding “earthing fault” in the 08 NEC?

  9. #9

    Default .....

    It might mean short circuit....

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    Electrical Contractor/Instructor jwelectric's Avatar
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    I think that you are talking about a device similar to what the power company uses to maintain constant voltage on a power grid.

    This can be achieved by controlling the Pulsed Width Modulation and is a lot more detailed that most here would understand even if someone were to take the time to explain. In most colleges this covers a whole semester by itself.

    As to anything that will maintain a constant voltage during a fault to ground, it has not been invented as yet.

    Just what is the application you are talking about, please.

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