Useful electricity equation

UnderPhire

UnderPhire

Well-Known Member
Situation : 1000w hps lamp that runs off 110 volts gets changed to 220 volts. This would make you use less amps. I will show you how much electricity you will save.


Formula for finding out number of watts = Amperes x Volts = Watts

also

Amperes = Watts/Volts

Answer

A V W
10.9 x 120 = 1200
5.45 x 220 = 1200

Either way it comes out to be the same.

1200watts or 1.2 kilowatt hours (kilowatt hours is what electric companies charge you by)
 
K

Keenly

Guest
yes things in 220v do in fact use less current, however you do not save anything

the wattage you are using remains the same, so the Kilowatt hours build up just as fast

i have tried to use ohms law and watts law to figure out a way to make my light more efficient too but to no avail yet

edit: too bad it doesnt actually lower the bill that would be awesome
 
Reefer Rick

Reefer Rick

Well-Known Member
220v doesnt actually use less current.it divides the current in two lines.
120v = 10A 1 breaker
220V = 5A x 2 breakers
220v is for down sizing wires not your bill :confused:
 
UnderPhire

UnderPhire

Well-Known Member
i know, it is a frequently asked question so i thought i would clear it up that there is no conection
 
K

Keenly

Guest
Reefer Rick said:
220v doesnt actually use less current.it divides the current in two lines.
120v = 10A 1 breaker
220V = 5A x 2 breakers
220v is for down sizing wires not your bill :confused:
Click to expand...

yeah but he is talking about the actually amount of current drawn is less with 220v supply


it doesnt change anything just some equations that relate to electricity
 
ontariogrower

ontariogrower

Well-Known Member
what you want is factory electricity fuck it cost them like 20bucks a month to run hundereds of lights I cant remeber but a guy told me once out they do it I think it was 3cycle electricity or some shit it the way it works out is 3x220
 
K

Keenly

Guest
UnderPhire said:
This stuff is fun 2 learn
Click to expand...

dude just wait until you learn about the difference in shit when its connected in series and when its connected in parallel, or series parallel combination.... it gets fucking hard

imagine this eqation

you got 4 resistors all of different values placed in parallel



1
__________________________
1 1 1 1
____ + ___ + __ + ___
R1 R2 R3 R4


it makes your fucking brain hurt when you got a 10.1k ohm, 12.7k ohm, 127 ohm, and a 400 ohm



EDIT: spaces arent working

equation is : 1 over 1 over R1 plus 1 over R2 plus 1 over R3 plus 1 over R4
 
K

Keenly

Guest
ontariogrower said:
what you want is factory electricity fuck it cost them like 20bucks a month to run hundereds of lights I cant remeber but a guy told me once out they do it I think it was 3cycle electricity or some shit it the way it works out is 3x220
Click to expand...


its three phase AC

and it actually costs more to generate i know that

common sense tells me that more $ to make = more $ to buy

i could be wrong


one KWh is one KWh
 
la9

la9

Well-Known Member
ontariogrower said:
what you want is factory electricity fuck it cost them like 20bucks a month to run hundereds of lights I cant remeber but a guy told me once out they do it I think it was 3cycle electricity or some shit it the way it works out is 3x220
Click to expand...

In factories they use 3 phase 480 electric and it still costs the same when you are billed by the watt.

Big factories get a break because they get billed based on peak usage. They monitor the amp draw everyday for a whole month and whatever the highest amp draw is they multiply by a rate and that is how they get charged.

No one is saving money by running a higher voltage, higher voltages are used because of line loss.
 
K

Keenly

Guest
When you transform AC into a high voltage, it works like this


if you have a 10:100 step up transformer, (the main part of a ballast is a transformer btw) you put in 100 volts and get out 1000 volts

i know what your thinking

WTF FREE ENGRGY OMG!>!>!?!?!

no

when the voltage goes up the current goes down

when the voltage goes down the current goes up

lately i have been trying to take apart the ballast i have to count the # of turns so i can make my own ballasts, maybe sell those things for like 20 bucks online, make $
 
BigBudBalls

BigBudBalls

Well-Known Member
ontariogrower said:
what you want is factory electricity fuck it cost them like 20bucks a month to run hundereds of lights I cant remeber but a guy told me once out they do it I think it was 3cycle electricity or some shit it the way it works out is 3x220
Click to expand...
Industrial lighting is typically 277VAC, which would be a single leg of a 480 triple phase AC system and a neutral.

Rates will vary. introductory rates are higher for industrial zones. but with the huge amounts they use, they get the volume discounts. But $20 for hundreds of lights is a stretch.
 
BigBudBalls

BigBudBalls

Well-Known Member
Keenly said:
When you transform AC into a high voltage, it works like this


if you have a 10:100 step up transformer, (the main part of a ballast is a transformer btw) you put in 100 volts and get out 1000 volts

i know what your thinking

WTF FREE ENGRGY OMG!>!>!?!?!

no

when the voltage goes up the current goes down

when the voltage goes down the current goes up

lately i have been trying to take apart the ballast i have to count the # of turns so i can make my own ballasts, maybe sell those things for like 20 bucks online, make $
Click to expand...
AC is stepped down. The main lines running through you 'hood are probably 13.5K or 7.5K Then its dropped to what you want on that service branch.

And you are going to wind your own coil? LOL! Gonna cost you more to get a spool of mag wire that long.
Ever think of just using a meter to figure out the ratio of the ballast instead of counting coils?? LOL


As to the other post about it costing more to generate:

Look at the poles. See them 3 lines at the top? Thats trip-phase. Comes straight from the Co. like that.
 
K

Keenly

Guest
Neutral, common, and hot


usually 3 phase but some plants only churn out two, like small towns
 
BigBudBalls

BigBudBalls

Well-Known Member
Keenly said:
Neutral, common, and hot


usually 3 phase but some plants only churn out two, like small towns
Click to expand...
Not too many small towns have their own power plant.
I'll go out on a limb and say no, no 2 phase plants out there in America. Nearly all machinery is trip-phase (basic conventional lathes and mills included). You wind up with more HP from the 120^ phasing on an AC motor. And running phase converters is costly. 480 vs 208 for smaller towns I'll buy.

And what about Neutral, common, and hot?
 
UnderPhire

UnderPhire

Well-Known Member
Keenly said:
dude just wait until you learn about the difference in shit when its connected in series and when its connected in parallel, or series parallel combination.... it gets fucking hard

imagine this eqation

you got 4 resistors all of different values placed in parallel



1
__________________________
1 1 1 1
____ + ___ + __ + ___
R1 R2 R3 R4


it makes your fucking brain hurt when you got a 10.1k ohm, 12.7k ohm, 127 ohm, and a 400 ohm



EDIT: spaces arent working

equation is : 1 over 1 over R1 plus 1 over R2 plus 1 over R3 plus 1 over R4
Click to expand...

we use to have to do this stuff all day in college. I was in the computer field before moving to radiology. The stupid ass college I went to made me take like 13 advanced circuitry classes for my internetworking degree.
we used to set it up like this

1
-----------------------------------------------------
1 1 1 1 1 1
-- + --- + ----- + ---- + ----- + ----
r1 r2 r3 r4 r5 r6


unless they were in series, then it's just r1 +r2 +r3
 
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