New Lincoln Electric Power MIG 210MP Inverter $999

[MinnesotaDaveChalmers]

Does it? Or do they mean that it has a high power factor, and they say it has PFC because thats what people look for.

I guess that it doesn't mater how the power factor gets there (close to 1.0).

Well, I don't know the answer to that, but this is how they put it in the ad:

 

[CNC Dan]

Well, I don't know the answer to that, but this is how they put it in the ad:
<img src="http://www.tractorbynet.com/forums/attachment.php?attachmentid=394778"/>

Hmmm. I guess we won't know for sure unless we open one up and look for capacitors on the input line.

But since poor power factor comes from large inductances on the input line, and inverters don't have that, I think they just mean that the machine has a better power factor than an equivalent size transformer machine.

EDIT:

I just looked at Wikipedia, and rectifiers can also influence power factor, so maybe that welder does have power factor correction built-in.

Power factor - Wikipedia, the free encyclopedia

 

[Happy Gilmore]

H G, I don't think you're the first to do something like that

Terry

:mur:

 

[yomax4]

If you look back in the posts. It was PFC Power factor "Correction" Power Factor Correction.. All you have posted on Power factor is correct. Some equipment has more expensive components that allow certain things to happen PFC is one of them.. > Not PF, < PFC >.. Wikipedia that.

 

[CNC Dan]

If you look back in the posts. It was PFC Power factor "Correction" Power Factor Correction.. All you have posted on Power factor is correct. Some equipment has more expensive components that allow certain things to happen PFC is one of them.. > Not PF, < PFC >.. Wikipedia that.

You mean like in section 2.5 of that wiki article?

Power factor correction

 

[Lazy]

the power company would like unity power factor. as a user if you correct the power factor to unity it will cost you more money in electric bills. why else would the power company want you make the correction. Most homes are 99% resistive loads so the power company don't push the Issue, but an industrial plant with many many motors and transformers the power company will charge them a Penalty if they don't correct the power factor to near unity.

 

[CNC Dan]

the power company would like unity power factor. as a user if you correct the power factor to unity it will cost you more money in electric bills. why else would the power company want you make the correction.

Because they have to size the grid for the current flowing, not the power used. And the more current that flows, the more line losses and transformer losses there are. That costs the power company, not you.

Having a good power factor won't cost you any more. Your electric meter is a WATT-hour meter, not a VOLT-AMPER- hour meter.

 

[Lazy]

Because they have to size the grid for the current flowing, not the power used. And the more current that flows, the more line losses and transformer losses there are. That costs the power company, not you.

Having a good power factor won't cost you any more. Your electric meter is a WATT-hour meter, not a VOLT-AMPER- hour meter.

the meter determines the watts used by the amount of current flowing and the applied RMS voltage. I have 50 years as an Industrial Electrician, Electrical Supervisor, and Technical
specialist in plant engineering. many schools for Electronics. those years are what I base my answer on. What do you base your answer on?

 

[CNC Dan]

the meter determines the watts used by the amount of current flowing and the applied RMS voltage.

Sort of. When the voltage and current are out of phase, you are not using as much power, as you would be when they are in phase, and the same current and voltage. That's due to there being some time when there is current flowing, but zero volts. (IxV=P)

I have 50 years as an Industrial Electrician, Electrical Supervisor, and Technical
specialist in plant engineering. many schools for Electronics. those years are what I base my answer on. What do you base your answer on?

I have no such qualifcations.
I'm just a guy that reads a lot.

Check out volt-ampere, and see how it is different from power.
Volt-ampere - Wikipedia, the free encyclopedia
see also reactive power:
Volt-ampere reactive - Wikipedia, the free encyclopedia

 

[Happy Gilmore]

Anyone hear any feedback or pull the trigger on one of these?