Not enough POWER CAPTAIN! I think...

Discussion in 'Australia' started by fnatic, Sep 19, 2013.

  1. prestonpaul

    prestonpaul What?

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    your both correct, permanent magnet (brushless) system, (most bikes) the regulator has no control over output,,, and dumps excess as heat. Brush & slip ring system (most cars and some bikes) voltage regulator regulates output by varying excitation of rotor via brushes & slip rings
    #21
  2. neilaction

    neilaction Slightly Less Adventurous

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    True but that's not the point I was trying to make. A 400w Alternator feeding a 100w load does not dump 300w as heat. A permanent magnet system will supply current as required and dump the excess energy caused by the alternators higher voltage at this current. No load, very little heat, and not visa versa. The brush and slip ring system is more efficient.
    #22
  3. prestonpaul

    prestonpaul What?

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    Fair point, when it gets this deeply into it we really need to start differentiating between Voltage, Current, and Power. A bit outside the scope of this thread, apart from which it's too late at night and trade school was too many years ago :lol3
    #23
  4. neilaction

    neilaction Slightly Less Adventurous

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    And don't forget energy. :deal A personal favourite. :lol3:lol3
    #24
  5. prestonpaul

    prestonpaul What?

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    I like this place, it makes me stretch my brain sometimes :clap
    #25
  6. ferals5

    ferals5 Team black bikes

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    Yes I did apply the KISS principle...maybe too much so :lol3
    #26
  7. Warin

    Warin Retired

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    energy = power + time...

    Regulators .. shunt or series?
    #27
  8. PBee

    PBee owya goin mate

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    Quoting your PDF as you have seen, answers all of your questions.

    Great bit of info especially this bit::clap

    Alternator output (held at constant 13.6 volts)
    1280 rpm (idle)
    17.7
    241
    94 watts over baseline load
    3000 rpm
    25.9
    352
    205 watts over baseline load
    4500-7500 rpm
    27.8
    378
    231 watts over baseline load**
    #28
  9. KIZ

    KIZ Marty

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    So power output increases with Speed of rotation of alternator,:lol3.. Battery will take up the slack of load at idle and charge at higher RPM.
    #29
  10. Wilmo

    Wilmo Orange Fever

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    How about buy LED lights, a lot less power draw......
    #30
  11. fnatic

    fnatic Been here awhile

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    The lights im looking at are all LED lights. :deal
    #31
  12. davorallyfan

    davorallyfan Commonist

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    Power captain for the Brownlow?
    #32
  13. Dave Nolan

    Dave Nolan left from woopwoop

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    think solar
    #33