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Groups > comp.os.linux.misc > #95244
| From | "Carlos E. R." <robin_listas@es.invalid> |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Re: [OT] Gas inspections |
| Date | 2026-11-06 18:57 +0100 |
| Message-ID | <nl6io7Fnro8U1@mid.individual.net> (permalink) |
| References | (9 earlier) <11cia94$1o6h8$3@dont-email.me> <nl43ttFaf1cU1@mid.individual.net> <11cis31$1votj$11@dont-email.me> <nl4bf2Faf1bU8@mid.individual.net> <11cj1oj$22805$3@dont-email.me> |
On 2026-11-05 23:59, Rich wrote:
> Carlos E. R. <robin_listas@es.invalid> wrote:
>> On 2026-11-05 22:22, The Natural Philosopher wrote:
>>> On 05/11/2026 19:32, Carlos E. R. wrote:
>>>> On 2026-11-05 17:18, Rich wrote:
>>>>> c186282 <c186282@nnada.net> wrote:
>>>>>> On 10/28/26 13:10, Carlos E.R. wrote:
>>>>>>> On 2026-10-28 15:32, c186282 wrote:
>>>>>>>> On 10/28/26 09:32, Lars Poulsen wrote:
>>>>>>>>> On 10/27/2026 07:11, c186282 wrote:
>>>>>>>>>> On 10/27/26 09:19, Lars Poulsen wrote:
>>>>>>>>>>> On 10/26/2026 06:05, c186282 wrote:
>>>>>>>
>>>>>>>
>>>>>>>>> The 14kW is a pretty good match for the 100A utility service.
>>>>>>>>
>>>>>>>> Fair match. I'd have to buy 25kw minimum.
>>>>>>>>
>>>>>>>> Note if you have central A/C you have to figure in the startup
>>>>>>>> SURGE requirement. That can easily be double the running power,
>>>>>>>> if only for a couple of seconds.
>>>>>>>>
>>>>>>>> Fail to meet that need and you'll pop yer generator breaker
>>>>>>>> and/or burn up your A/C compressor.
>>>>>>>
>>>>>>> An AC with inverter can solve that problem with a slow controlled
>>>>>>> startup.
>>>>>>
>>>>>> Ummmm ... not always. Sometimes the motors DO need a good
>>>>>> "kick" to get 'em going. Anything attached to some kind of
>>>>>> 'compressor' - a moderate/large resistance load - tends to be a
>>>>>> bad case.
>>>>>
>>>>> Nope. The "inverter compressors" appear to be variable frequency
>>>>> drive. So they can start up slow without the typical current burst of
>>>>> a standard "full on" bang-bang controller.
>>>>
>>>> Good point, I forgot about that.
>>>
>>> Yes, brushless DC motors powered by custom speed controllers are
>>> becoming cheaper than a commutated motor or an induction motor will
>>> smarts to stop it blowing the grid on startup
>>
>> I thought they were using induction motors, driven by an inverter which
>> controls the frequency and the voltage. Generating three-phase AC
>> current and using three-phase motors.
>
> Three-phase AC motors are three-phase because the phases provide the
> "rotating magnetic field" to produce rotational motion on the armature.
> So the motor can just be windings and on-off switches.
Yes. So feed with three phase current generated by an inverter (possibly
powered by single phase home supply), then vary the frequency and
voltage, and you have a speed control and also torque control. Including
start up.
And you have an enormous supply of cheap industrial motors.
> But if you drive the coils of a DC motor with a proper controller that
> "sequences" the coils properly so you get the 'rotating magnetic
> field', you can get any speed you desire, and extreme torque even at
> startup. Same style of motors that are used on electric cars now.
>
> Also the same style motor driver in all the little 80mm CPU fans
> sitting inside all our computers for cooling purposes.
Yes.
--
Cheers,
Carlos E.R.
ES🇪🇸, EU🇪🇺.
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Re: Personal agents on Linux: what should stay under the user's control? John Bokma <contact@johnbokma.com> - 2026-10-17 12:33 +0200
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-17 12:04 +0100
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Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-16 10:45 +0100
Re: Personal agents on Linux: what should stay under the user's control? "Carlos E.R." <robin_listas@es.invalid> - 2026-10-16 13:56 +0200
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-16 15:38 +0100
Re: Personal agents on Linux: what should stay under the user's control? Rich <rich@example.invalid> - 2026-10-16 15:19 +0000
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-16 17:09 +0100
Re: Personal agents on Linux: what should stay under the user's control? rbowman <bowman@montana.com> - 2026-10-16 18:21 +0000
Re: Personal agents on Linux: what should stay under the user's control? Rich <rich@example.invalid> - 2026-10-23 19:34 +0000
Re: Personal agents on Linux: what should stay under the user's control? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-23 20:28 +0000
Re: Personal agents on Linux: what should stay under the user's control? rbowman <bowman@montana.com> - 2026-10-23 22:44 +0000
Re: Personal agents on Linux: what should stay under the user's control? c186282 <c186282@nnada.net> - 2026-10-24 03:18 -0400
Re: Personal agents on Linux: what should stay under the user's control? "Carlos E.R." <robin_listas@es.invalid> - 2026-10-24 13:44 +0200
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-24 13:09 +0100
Re: Personal agents on Linux: what should stay under the user's control? "Carlos E.R." <robin_listas@es.invalid> - 2026-10-24 14:45 +0200
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-24 14:02 +0100
[OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-24 21:23 +0200
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-26 01:16 -0400
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-26 11:33 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-26 11:08 +0000
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-26 13:28 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-26 13:07 +0000
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-26 09:08 -0400
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-26 13:59 +0000
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-26 22:28 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-26 21:39 +0000
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-26 23:03 +0100
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-27 00:44 -0400
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-26 09:05 -0400
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-26 22:47 +0100
Re: [OT] Gas inspections Lars Poulsen <lars@beagle-ears.com> - 2026-10-27 06:34 -0700
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-27 14:37 +0000
Re: [OT] Gas inspections rbowman <bowman@montana.com> - 2026-10-27 18:38 +0000
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-28 13:05 +0100
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-28 10:07 -0400
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-28 18:06 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-28 17:57 +0000
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-10-31 10:49 +0100
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-28 22:21 -0400
Re: [OT] Gas inspections Robert Riches <spamtrap42@jacob21819.net> - 2026-10-29 02:51 +0000
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-29 21:48 +0100
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-30 00:38 -0400
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-30 11:04 +0000
Re: [OT] Gas inspections Robert Riches <spamtrap42@jacob21819.net> - 2026-10-30 17:01 +0000
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-10-31 11:01 +0100
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-29 21:45 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-29 23:41 +0000
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-30 04:11 -0400
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-10-31 11:21 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-31 10:45 +0000
Re: [OT] Gas inspections Pancho <Pancho.Jones@protonmail.com> - 2026-10-31 14:25 +0000
Re: [OT] Gas inspections Lars Poulsen <lars@beagle-ears.com> - 2026-10-27 06:19 -0700
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-27 10:11 -0400
Re: [OT] Gas inspections Lars Poulsen <lars@beagle-ears.com> - 2026-10-28 06:32 -0700
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-28 10:32 -0400
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-28 18:10 +0100
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-28 22:32 -0400
Re: [OT] Gas inspections "Carlos E.R." <robin_listas@es.invalid> - 2026-10-29 21:49 +0100
Re: [OT] Gas inspections c186282 <c186282@nnada.net> - 2026-10-30 04:23 -0400
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-10-31 11:26 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-10-31 10:45 +0000
Re: [OT] Gas inspections Rich <rich@example.invalid> - 2026-11-05 16:18 +0000
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-11-05 20:32 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-11-05 21:22 +0000
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-11-05 22:40 +0100
Re: [OT] Gas inspections Rich <rich@example.invalid> - 2026-11-05 22:59 +0000
Re: [OT] Gas inspections "Carlos E. R." <robin_listas@es.invalid> - 2026-11-06 18:57 +0100
Re: [OT] Gas inspections The Natural Philosopher <tnp@invalid.invalid> - 2026-11-06 10:20 +0000
Re: Personal agents on Linux: what should stay under the user's control? Lars Poulsen <lars@beagle-ears.com> - 2026-10-24 11:52 -0700
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-24 10:35 +0100
Re: Personal agents on Linux: what should stay under the user's control? Lars Poulsen <lars@beagle-ears.com> - 2026-10-24 11:40 -0700
Re: Personal agents on Linux: what should stay under the user's control? Rich <rich@example.invalid> - 2026-11-05 15:55 +0000
Re: Personal agents on Linux: what should stay under the user's control? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-24 10:31 +0100
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