Electrical question

[mbohuntr]

Do you have a link to that? I have never heard that, and every conduit and frame we have is house grounded. We even have floating "isolated" transformer grounding on the main gens. I would love to read up on that. Thanks

Is this what you were referring to? http://static.schneider-electric.us/assets/consultingengineer/appguidedocs/section6_0307.pdf

Figure 6-2, or 6-6... Pretty cool

 

[Industrial Toys]

Sorry, again, for the thread hi-jack. Should start a thread but don't really know what to call it. 600 Volt Rotary Phase Converter Grounding Maybe.

Thanks for the input.

 

[mbohuntr]

Yes, I apologize as well... I should know better...

 

[prichard]

Sorry, again, for the thread hi-jack. Should start a thread but don't really know what to call it. 600 Volt Rotary Phase Converter Grounding Maybe.

Thanks for the input.

Sounds logical to me.

 

[Industrial Toys]

Done. New Thread opened.

Thanks

 

[PILOON]

To make this thread really interesting lets toss in 50 cycle vs 60 and like in aviation 400 cycle.

 

[JimRB]

Watts is a unit of measurement that in it's simplest form equals Volts x Amps... 2000 watts / 240 volts = 8.33 amps used. 2000 watts/120 volts = 16.67amps.

Less amps = lower electric bill..

My power bill is in kilowatts, not amps. Am I missunderstanding my power bill?

 

[mbohuntr]

My power bill is in kilowatts, not amps. Am I missunderstanding my power bill?

Your meter voltage is 240 volts whether or not you use 240, or 120 . Kwatts is 1000 voltamps... so using 240 on a pool pump means 1/2 the current. Ohms law states where resistance is constant, voltage and current are inversely proportional. So more voltage = less amps. Less amps = less kilowatts used. Amps are a measurement of electron flow.

Note I avoided the word POWER.. my explanations are bad enough without making it worse trying to equate it with work.., horsepower etc. If someone can explain it better, please do..I was terrible at physics.

 

[prichard]

Your meter voltage is 240 volts whether or not you use 240, or 120 . Kwatts is 1000 voltamps... so using 240 on a pool pump means 1/2 the current. Ohms law states where resistance is constant, voltage and current are inversely proportional. So more voltage = less amps. Less amps = less kilowatts used. Amps are a measurement of electron flow.

Note I avoided the word POWER.. my explanations are bad enough without making it worse trying to equate it with work.., horsepower etc. If someone can explain it better, please do..I was terrible at physics.

In your previous example the bill would be the same, 2000w powered by 120 or 240 is still 2000w or 2kw.

Difference between watts and va is much more complicated. In reality unless you're talking about a resistive heater out is likely your scenario would be same va but lower watts.

 

[mbohuntr]

I was trying to keep away from anything with impedence, purely resistive. Now that I think about it, about the only thing that really applies is a water heater.