Posted by Jim on June 23, 2010, 9:20 pm
I don't buy this "explanation" at all.
Jim
wrote:
>This may help:
>http://en.allexperts.com/q/Electronics-3923/2009/1/Inverter-vs-non-inverter.htm
>h
Posted by m II on June 23, 2010, 10:13 pm
Jim wrote:
> I don't buy this "explanation" at all.
> wrote:
>
>> This may help:
>>
>>
http://en.allexperts.com/q/Electronics-3923/2009/1/Inverter-vs-non-inverter.htm
I've never seen a Briggs and Stratton engine mentioned in the same
league as Honda, or any other Japanese engine, for that matter.
If Briggs could DOUBLE the life of their engine for two dollars extra,
they wouldn't do it. They are built down to a cost.
Their overhead valve engines last longer than their flatheads, but
that is an accidental byproduct of an oil pump being needed for the
rocker arms and valves.
mike
Posted by Bruce in alaska on June 22, 2010, 3:47 pm
In article
> > Hi All,
> > I want a definition of "inverter generator"
> >
> > Is it as simple as the generator generates a DC voltage and then
> > an electronic circuit (inverter) uses the dc to make 60 hz AC?
> >
> > Or maybe the generator generates AC which is changed to DC and
> > then back to (cleaner, inverter) AC.
> >
> > Mike
>
> This is the manual for the Yamaha EF1000:
> http://www.yamaha-motor.com/assets/service/manuals/0/LIT-19626-01-19_1109.pdf
>
> The schematic at the end shows two three-phase permanent magnet
> alternators (1,2) which presumably are rectified to DC and then
> inverted to 60Hz AC. I haven't worked on one of these generators but
> motorcycles use those alternators.
>
> I would guess that one of the alternators must put out enough voltage
> at idle, the other is more efficient at high speed. The stepping motor
> (21) might control the throttle. The bottom part of the schematic is
> the engine ignition.
>
> jsw
Hey Guys, Just a NOTE here: ALL Electrical Generators produce their
power in AC, PERIOD. What you think of as DC Generators have Commutators
that convert the AC from the windings, mechanically to DC, coming off
the Commutator Brushes. In the Inverter/Generator case, the Main Genend
Windings, are 3 Phase AC that is rectified, to DC and then feed into the
DC input of the Main 60 Hz Inverter. If the load Power is more than the
DC Input to the Inverter Section then the CPU Controller ramps up the
Throttle on the Engine to provide the required Power for the load. this
way the engine only provides just enough power to satisfy the load on
the output of the inverter, thus saving fuel, and machinery wear. Great
concept but give me a nice old Diesel 1800 RPM Genset any day.
--
Bruce in alaska
add <path> after <fast> to reply
Posted by m II on June 22, 2010, 7:40 pm
Bruce in alaska wrote:
> Hey Guys, Just a NOTE here: ALL Electrical Generators produce their
> power in AC, PERIOD. What you think of as DC Generators have Commutators
> that convert the AC from the windings, mechanically to DC, coming off
> the Commutator Brushes.
One of my teachers, years ago asked "What is a rotating mechanical
rectifier?".
When we gave up, he answered "A commutator and brushes".
I've never forgotten that.
Here's an easy one: What is the difference between a generator and
alternator?
mike
Posted by hubops on June 22, 2010, 7:58 pm
>> Hey Guys, Just a NOTE here: ALL Electrical Generators produce their
>> power in AC, PERIOD. What you think of as DC Generators have Commutators
>> that convert the AC from the windings, mechanically to DC, coming off
>> the Commutator Brushes.
>One of my teachers, years ago asked "What is a rotating mechanical
>rectifier?".
>When we gave up, he answered "A commutator and brushes".
>I've never forgotten that.
>Here's an easy one: What is the difference between a generator and
>alternator?
>mike
... dunno .. but the rotary converter is the
in-bred-bastard-love-child.
.. haunts me - to this day.
John T.
XML site map
>http://en.allexperts.com/q/Electronics-3923/2009/1/Inverter-vs-non-inverter.htm
>h