"dkol" Sun,
30 Dec 2018 18:52:28 GMT in alt.home.repair, wrote:

"William Gothberg" wrote in
message news
On Sun, 30 Dec 2018 03:09:29 -0000, FMurtz
wrote:

William Gothberg wrote:
On Sat, 29 Dec 2018 17:38:04 -0000, Clare Snyder
wrote:

On Sat, 29 Dec 2018 08:07:42 -0800, Bob F
wrote:

On 12/29/2018 6:37 AM, trader_4 wrote:
On Saturday, December 29, 2018 at 9:23:42 AM UTC-5, Bill
Gill wrote:
On 12/29/2018 7:43 AM, William Gothberg wrote:
Shouldn't we have faster microwaves by now giving out a
few kW? They
were invented decades ago.
Higher powered microwaves would require higher powered
electric outlets, probably 220VAC (in the USA).

Also it is questionable whether higher powered ovens would
be practical for use. Getting warming times down to a
couple of seconds might not be a good idea. More speed is
not always better.

Bill

+1

That about covers it. Not sure how useful more power would
be. For example,
last night I was thawing out a tomato sauce in a quart
plastic container.
The Panasonic has a defrost mode that uses about 30% power
and cycles that.


It gets the 30% power by cycling the 100% power on 30% of the
time.

(By the way, adjusting the level does not actually change the
wattage. It simply means the microwave will pulse on and off
at its fixed wattage
until the desired level is reached.)

https://lifehacker.com/5974788/famil...elf-with-your-
microwaves-power-settings-to-make-microwave-cooking-a-joy

That was true of the first generation of Microwaves, but the
current
"inverter" driver units actually CAN throttle the power.
Inverter microwaves are much better for defrosting AND
cooking.

We've had ours for about 2 years now - replacing our original
that we bought in about 1985.

BIG difference (but the old one would likely still be working
by the time this one dies)

Why is it called an invertor? I thought an invertor was a
device to increase the voltage - like running 240V devices off
a 12V car battery.

Why do you persist in posting waffle about which you know
absolutely nothing, twould be better to post on subjects you
know or ask and educate yourself about the other

I know what a ****ing invertor is, I built my own solar panel
system.

Not the same as an inverter microwave oven.

That's because the inverter microwave oven is really a switching
power supply based oven, instead of a bulky, heavy, inefficient step
up transformer. [g] I suppose you can call it an inverter because
it's taking AC mains, raising it significantly and converting it to
DC which is the same thing as the original step up style was doing,
but it's not having to use a bulky transformer to do it.

It's also good advertising.. right? 'Ours uses 'inverter'
technology!' Well, technically, so did the originals, with a single
diode. [g] And, it's not outright lying, it's really got an inverter
for it's power supply...so its cheaper to make, and weighs less too.

But, it's not varying the power feeding the magnetron or anything
like that. It's able to control magnetron power and filament power
seperately, which can assist with shorter cooking times. Vs the old
step up style that couldn't control them seperately, short of using
an additional transformer (for the filament only) and another relay
for that little transformer. In the old school style, the step up
transformer has two taps. One high voltage, one low voltage. High
voltage for the magnetron, low voltage for the filament. But both
supplying whenever the mains was available to the transformer. So you
couldn't keep the filament on to avoid warm up times while you had
the magnetron itself powered down for a cycle. You can with the
switching or inverter style. Which turns into more efficient cooking
and less power consumed over all to do it.





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