The Ideal suction AIr Flow numbers for a Vacuum

[vaclab]

2nd Correction for Reply #4

I typed: Shop-Vac and other companies have insane false ratings like "6.5 Amps"
I meant: Shop-Vac and other companies have insane false ratings like "6.5 HP"

It was bad "unit swapping" day. I hate it when I have those.

Bill

 

[vacuumdevil]

@vaclab



I agree that most horsepower ratings on vacuums are bull.



But it's possible to have a motor produce multiple horsepowers without it consuming more electricity.

Consumed Watts/amperage does not always equal horsepower.



Great example is a BMW i8 which is 369 electric horsepower but can be charged on 120 12amp

I've also linked a simple machine motor that's two horsepower and can run on multiple voltages.



My point being is unless you have a Dino and an amp meter hooked up you're probably not going to test that metric.



That's why it's best to stick with the industry standard of working vacuum,CFM sealed vacuum inches of water.

https://www.grizzly.com/products/Grizzly-Motor-2-HP-Single-Phase-1725-RPM-TEFC-110V-220V/H5383

 

[vaclab]

Wow, Alex You Don't Even Have A Basic Understanding Of

Electricity or power formulas at all. Quite shocking really. Try learning E=IR and P=IE and their variants.

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But it's possible to have a motor produce multiple horsepowers without it consuming more electricity.
Consumed Watts/amperage does not always equal horsepower.
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Completely wrong. 2 HP is 2HP, which is 1492 Watts. This means @ 110V it would pull 13.6 Amps and @ 220V it would pull 6.78 Amps. The total power draw is the same. If you had bothered to look at the link you posted, you would also see that anything rated over 2 HP has to use 220V, which exactly proves my point that 2HP is the practical limit for a 15A, 120V circuit.

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Great example is a BMW i8 which is 369 electric horsepower but can be charged on 120 12amp
I've also linked a simple machine motor that's two horsepower and can run on multiple voltages.
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For electric cars, charging rates at different voltages do not equate to maximum power draw when actually using the motor. Do you know why different charging rates even exist? Because not everyone has a high current 220/440 or even higher super chargers installed in the house. Some of the fastest chargers available are nearing 1000 Volts.

Do the Math: If I have a 50 KWhr battery and all I can charge at is 1875 Watts (15A/120V), it would take over 26 hours to charge. Higher power charging stations can charge at much faster rates. Discharge rates when the vehicle is operating is much more than 2HP and the battery drains in just a few hours under normal driving conditions.

Lastly, any electrical device that can run on multiple voltages has this thing known as a "transformer", which steps the voltage up/down as needed. It does this by connecting to different parts of the coil or separate coils altogether.

You really need to take a basic electronics course.

Bill

 

[tolivac]

Fast chargers run from 440-480V 3 ph.This is what those multiple car charging stations use.And those can charge more than one car at a time.It still can take a few hours to charge the car's batteries.