• uis@lemm.ee
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    9 months ago

    Usually too low frequency is issue, I can’t imagine why even double frequency can damage PSU.

    • Rinox@feddit.it
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      9 months ago

      There’s a reason why the frequency is exactly 50hz or 60hz, and it’s not “at least 50hz or 60hz”. You can’t just have 55hz on the grid, you’ll destroy half a country.

      • uis@lemm.ee
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        9 months ago

        That’s why I say low frequency is problem, but high is not as much.

        • areyouevenreal@lemm.ee
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          9 months ago

          It’s not just about frequency - though that is important for devices that synchronize using the grid. When your frequency is going up because of too much power so will voltage. Think about that for a minute.

          • uis@lemm.ee
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            9 months ago

            Not necessarily(see field windings), but higher voltage is indeed a problem

            • areyouevenreal@lemm.ee
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              9 months ago

              Not everything on the grid is a motor. Even if it was you would still need to rebuild the motor to change field windings.

    • sunbeam60@lemmy.one
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      9 months ago

      Ok, your particular device may handle a wide band of frequencies. Congrats.

      But do we agree that not all devices can? What about sensitive devices keeping patients alive in hospitals?

      • onion@feddit.de
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        9 months ago

        Those would not be plugged straight into the grid but with a power conditioner inbetween

        • sunbeam60@lemmy.one
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          9 months ago

          Oh ok, I guess frequency maintenance on the grid isn’t a problem then and all the pumped storage and battery installations can shut and all the grid planners can go home and the spots markets can close and we can just dump as current as we see fit onto the grid and you’re right and I’m wrong.

      • bane_killgrind@lemmy.ml
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        9 months ago

        lol If you think hospitals don’t have managed power systems you shouldn’t be contributing.

        Also lol if you think medical equipment isn’t required to be robust, have you ever read a supply tender spec for a hospital?

      • uis@lemm.ee
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        9 months ago

        But do we agree that not all devices can?

        By not all you mean motors with windings connected to grid? Well, they still will work on higher frequencies, but on higher speed. Real problem is low frequency, not high. Well, 0.5kHz not all devices can handle, but most consumers(even conumer electronics, no pun intended) even rated to 50-60Hz range. So 46-64Hz should be fine for them.

        What about sensitive devices keeping patients alive in hospitals?

        Sensetive devices that can’t handle range bigger than ±0.4Hz? Are you kiddding me? How does that even pass certification?

        Most frequency-sencetive devices are not consumers, but transformers and turbines.

        • areyouevenreal@lemm.ee
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          9 months ago

          Transformers are very important for the grid though. You also have large synchronized motors connected to the grid.