Re: Induction Motor Design



On Tue, 04 Oct 2005 15:19:34 +0200, Frithiof Andreas Jensen wrote:

> PS:
>
> Outside the staff cafeteria in Vesteras, Sweden, there is a motor the size
> of a caravan. The point is that it does not run - but is was built exactly
> according to the specifications entered into the robotic factory ;-).

Um, do you mean, "Caravan", as in "Dodge Caravan", the SUV, or do you
mean it's as big as a string of camels and stuff across the desert?
;-)

And, the more important question - _would_ it run, if pressed into
service? It's true, there are considerations when scaling stuff, but
I've seen pictures of HUGE hydroelectric generators - why not a HUGE
motor?

Or is your point that robots are stupid?

Speaking of stupid specifications, I was in on writing a transformer
spec one time for a very weird power supply - I don't remember the
exact numbers, but this tranny had two secondaries, but it was
guaranteed in the spec that only one of them would be used at any
time. I was only a tech, but I tried to explain to the PHB, "You
don't need to spec the tranny to use both secondaries simultaneously
- you could spec this thing about 33% smaller (or whatever the figure
was)" but he overrode me, ordered the oversized transformer, and when
it came in, it didn't even fit in the enclosure.

When I showed the guy, "Um, Tom, when I mount the tranny here, I
can't put the lid on the box", he was mortified. "OK, it was my
goof."

It was strangely unsatisfying. It could have been an "I told you so"
moment, but I actually felt pity for the poor dimwit. Oh, well, I
guess he's just another example of the PHB syndrome.

Thanks,
Rich

.



Relevant Pages

  • Re: Induction Motor Design
    ... >> Outside the staff cafeteria in Vesteras, Sweden, there is a motor the ... > spec one time for a very weird power supply - I don't remember the ... > don't need to spec the tranny to use both secondaries simultaneously ...
    (sci.electronics.design)
  • Re: OT- Ford 3Liter swap
    ... go inside the cab and remove the shifter from the top of the transmission (4 bolts). ... Use a good floor jack and a 2x4 to support the motor so it won't tilt when you remove the tranny. ... Hook up your engine hoist, tractor boom pole, or similar. ...
    (alt.machines.cnc)
  • Re: OT- Ford 3Liter swap
    ... Remove all the transmission bolts but the top two. ... the dowels and the crossmember will support the tranny for now. ... Use a good floor jack and a 2x4 to support the motor so it won't tilt ... Hook up your engine hoist, tractor boom pole, or similar. ...
    (alt.machines.cnc)
  • Re: 94 Miata popping out of fifth gear
    ... I would check out how much the motor is ... The labor and parts on the repair will likely be quite a bit more than ... are guesswork until the tranny is opened up. ... The last time I tore down a 5 speed to get at the 5th gear, ...
    (rec.autos.makers.mazda.miata)
  • Re: 94 Miata popping out of fifth gear
    ... I would check out how much the motor is ... moving around when you rev it. ... The labor and parts on the repair will likely be quite a bit more than ... are guesswork until the tranny is opened up. ...
    (rec.autos.makers.mazda.miata)