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sunkensheep

HN member
Joined
Fri, Oct 27, 2017, 9:39 AM UTC
HN karma
41
Public activity
8 items

About sunkensheep

Electronic / Telecommunications / Embedded Software Design engineer. Active in IOT, renewable energy and DSP areas.

Recent public activity

  1. comment
    Comment #20310667

    Water is a bit less forgiving than steam, it has great resistance to changes in position or velocity. I suspect that closing the generator created a water-hammer, which physically …

  2. comment
    Comment #20279140

    It's just "blackhat" SEO. Reminds me of a scheme in China where a company sold fake medicines and astro-turfed their way into appearing as a major supplier. So long as our view of …

  3. comment
    Comment #20278991

    Astounds me how anti-human organizations such as ALEC are granted such influence by Republican and Democrat alike in the USA. The fraud on the other hand, doesn't surprise me. Desp…

  4. comment
    Comment #20201400

    If the phase is not quite matched, you get power swing and mechanical oscillation. If you get it very wrong expect pole slip http://supachaisabua.blogspot.com/2013/09/2.html?m=1

  5. comment
    Comment #20200765

    There can be issues with a line-commutated inverter or asynchronous generation (wind-farms might have both) if the fault level is too low (synchronous plant too small or too distan…

  6. comment
    Comment #20200726

    To connect two regions, we align the phase of the two islands. As the voltage across our switch bank falls to zero, we close the switches. It's not a big difference from between sy…

  7. comment
    Comment #19906624

    The MCAS may not have been designed as an anti-stall system, but that doesn't necessarily mean it functioned according to design. The possibility for multiple activations integrate…

  8. comment
    Comment #15567095

    $1.50 per day is about $45 per month, $80 per month would be 175% of income, so I'd hope that there was a second income earner in the family.