Re: Electicity Supply (Re: Pickup trucks for city boys)

From	Daniel70 <daniel47@somewhere.someplaceelse>
Newsgroups	comp.os.linux.misc, alt.comp.os.windows-11
Subject	Re: Electicity Supply (Re: Pickup trucks for city boys)
Date	2025-09-04 23:03 +1000
Organization	A noiseless patient Spider
Message-ID	<109c2ms$1pa17$1@dont-email.me> (permalink)
References	(21 earlier) <IFednfM7-PRCfyv1nZ2dnZfqn_SdnZ2d@giganews.com> <9kojolxgnh.ln2@Telcontar.valinor> <1099boq$14pk5$1@dont-email.me> <6rOcnT-ikrnKpSX1nZ2dnZfqn_adnZ2d@giganews.com> <1099pev$18dit$2@dont-email.me>

Cross-posted to 2 groups.

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On 4/09/2025 2:13 am, The Natural Philosopher wrote:
> On 03/09/2025 13:44, c186282 wrote:
>> On 9/3/25 8:20 AM, Daniel70 wrote:
>>> On 3/09/2025 4:11 am, Carlos E.R. wrote:
>>>> On 2025-09-02 14:28, c186282 wrote:
>>>>> On 9/2/25 8:07 AM, Daniel70 wrote:
>>>>>> On 1/09/2025 11:34 pm, The Natural Philosopher wrote:
>>>>>>> On 01/09/2025 14:02, Daniel70 wrote:
>>>>>>
>>>>>> <Snip>
>>>>>>
>>>>>>>> And, as I've mentioned before, here in Australia, our "Mains" is 
>>>>>>>> 240V RMS so peaks out at about 340V between the Active wire and 
>>>>>>>> the Neutral/Earth.
>>>>>>>
>>>>>>> Everywhere it's R.M.S. Which is why mains reservoir caps in an 
>>>>>>> SMPS are 400V rated as are the diodes feeding them...
>>>>>>
>>>>>> Somewhere here I read where someone refered to a 120V supplied 
>>>>>> that they typed was 90V effective. To me, 120V peak would be about 
>>>>>> 90V RMS (or effective).
>>>>>
>>>>>    Roughly, yes. It's sort of the REASON for 120vac - because
>>>>>    the effective energy is about the same as Edison's old 90vcd
>>>>>    service.
>>>>
>>>> There is something wrong with that. 120ac rms aka 170ac *ptp* has 
>>>> the same thermal effect as 120 dc.
>>>
>>> Sorry, Carlos, but is that "ptp" supposed to mean "Peak to Peak" i.e. 
>>> from Most Positive Value to Most Negative Value?? i.e. Double the 
>>> Peak Value and almost TRIPLE the RMS value??
>>>
>>>>>    "AC/DC" appliances, "universal motors", work because 120vac
>>>>>    and 90vdc are very similar in some important ways.
>>>>>
>>>>>    USA had to support competing systems for quite awhile.
>>
>>
>>    Just look at what you get if you put the 120vac through
>>    a full-wave rectifier with a load. It's close, though
>>    not exactly of course, equiv to 90vdc.
>>
> No., with capacitative smoothing its nearly 168V DC
> Its still 120V RMS, even though the waveform is kooky.
> Its never equivalent to 90V DC in any universe I know of.

Sorry!! WHAT?? By feeding in a 120V RMS waveform, how the hell do you 
get anywhere near 168V DC??

The 120V RMS waveform has a Peak Positive Value of +170V and a Peak 
Negative Value of -170V.

How could you possibly expect to get an AVERAGE (smoothed) value of 168V 
DC??

If you Full wave rectified the Sine Wave (so you had two Positive bumps 
per Cycle) and you then Filtered that (to produce DC), sure, you might 
get an UNLOADED 170V DC'ish ..... but not very useful!!

> OTOH 90V AC will rectify out to 120V DC peak with a smoothing capacitor 
> on it
> 
> 
> 
>>    Edison had a LONG shadow.
> -- 
Daniel70

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Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-01 23:02 +1000
  Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-01 14:34 +0100
    Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-02 22:07 +1000
      Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 14:13 +0200
      Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-02 08:28 -0400
        Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 20:11 +0200
          Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-02 19:34 +0100
            Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 22:06 +0200
              Re: Electicity Supply Nuno Silva <nunojsilva@invalid.invalid> - 2025-09-02 23:00 +0100
                Re: Electicity Supply Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-02 23:55 +0000
                Re: Electicity Supply Nuno Silva <nunojsilva@invalid.invalid> - 2025-09-03 10:10 +0100
                Re: Electicity Supply Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-09-03 11:00 +0200
              Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:30 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 14:57 +0200
                Re: Electicity Supply (Re: Pickup trucks for city boys) Mark Lloyd <not.email@all.invalid> - 2025-09-05 20:20 +0000
                Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-06 04:45 +0200
          Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-03 01:45 -0400
            Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 10:02 +0100
              Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-03 05:57 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 11:37 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Mark Lloyd <not.email@all.invalid> - 2025-09-05 20:25 +0000
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:45 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) Mark Lloyd <not.email@all.invalid> - 2025-09-05 20:27 +0000
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-06 10:30 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Graham J <nobody@nowhere.co.uk> - 2025-09-06 10:54 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-06 11:48 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-06 13:54 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-07 23:48 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-06 21:29 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-06 12:37 +0100
              Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 14:22 +0200
              Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:41 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 14:59 +0200
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-04 22:42 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-04 18:02 +0200
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-05 23:38 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-05 18:45 +0200
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 19:35 +0100
            Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:34 +1000
              Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-03 08:53 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) rbowman <bowman@montana.com> - 2025-09-03 21:02 +0000
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-04 22:45 +1000
              Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 17:09 +0100
          Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:20 +1000
            Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-03 08:44 -0400
              Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 17:13 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-04 23:03 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) "Carlos E.R." <robin_listas@es.invalid> - 2025-09-04 18:06 +0200
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-04 19:25 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-05 04:03 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 09:22 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-05 08:09 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-05 23:57 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 19:44 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-05 05:10 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 10:33 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-05 05:46 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 11:14 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-05 06:44 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 12:02 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-05 23:44 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 19:36 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-06 21:35 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-06 12:57 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-06 22:26 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-06 17:01 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-04 19:16 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-05 03:45 -0400
                Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-05 09:12 +0100
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-06 00:12 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-06 00:10 +1000
                Re: Electicity Supply (Re: Pickup trucks for city boys) Mark Lloyd <not.email@all.invalid> - 2025-09-05 20:37 +0000
      Re: Electicity Supply (Re: Pickup trucks for city boys) Graham J <nobody@nowhere.co.uk> - 2025-09-02 15:30 +0100
        Re: Electicity Supply (Re: Pickup trucks for city boys) The Natural Philosopher <tnp@invalid.invalid> - 2025-09-02 15:35 +0100
        Re: Electicity Supply (Re: Pickup trucks for city boys) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-02 21:22 +0000
        Re: Electicity Supply (Re: Pickup trucks for city boys) c186282 <c186282@nnada.net> - 2025-09-03 01:08 -0400
          Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 23:03 +1000
        Re: Electicity Supply (Re: Pickup trucks for city boys) Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 23:00 +1000

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