How do i get KW for a  3 phase service if I have the amps and  volts/?
458600
You say 3 phase, so the simple amps times volts doesn't work.\n\nThe complete formula is KW= 1.73 * amps * volts * power factor /1000\n\nThe 1.73 is the square root of 3.  The amps is your line current (same as phase current if it is wye, not the phase current of a delta) and the volts is the phase to phase voltage (not phase to neutral of a wye).  Power factor is 1 for simple resistive loads, and is less than 1 for inductive loads such as motors and fluorescent light ballasts.\n\nIf you take the power factor out of the formula, you get apparent power measured in KVA.
95109
This might help\n\nhttp://www.ttec.co.tt/consumertips/conserveelectricity/default.htm
803913
A 3-phase system requires 3 power leads A transformer or load connected delta (A to B, B to C, C to A) has no provision for a neutral connection, so there is no point in running a 4th wire. (note: a ground wire IS required by code)..a Wye, or Y connection (A to N, B to N, C to N)\nhas provision for a neutral wire.\n\nThere are 4 possible 3-phase connections,  Δ - Δ, Δ - Y, Y - Δ, and Y - Y.  Only the Y - Y connection can support a neutral, and thus 3-phase-4-wire wiring. In this system, the neutral wire carries the current resulting from unequal balancing of the phase loads.
76434
Go to your local electrician's shop
89341
Just buy the plugpack.\n\nIf you want more amps, or variable volts, be specific.
145588
Well, It depends on how much electricy to use, or if you want to sign a lengthy contract.\n\nA Good website (that I would recommend you visit) is\nhttp://www.powertochoose.org/
846799
It takes energy to push that current through your lights and appliances, and that's what your paying for. One way to see it is to consider that what comes out the downstream prong is at 0 volts and therefore of no use to anyone. Or, you could just wire all your lamps in series and see how that works!
958440
Your IT equipment is not the main draw here if the business will be housed in an office and have employees.  If all the components of the business is strictly confined to the computers and internet appliances, then you could base your usage/cost on this alone.  If you have employees, the bigger utility expense will be the AC/Heat, lighting and other items normally found in the office.\n\nYou can determine the approximate electrical cost by adding up the wattage of each applicance and/or system and the dividing that by 1,000 and multiplying that number by the current cost per Kilowatt Hour (kwh) charged by the utility company.\n\nHope this helps!
1112270
Look on your electric bill to find the billing rate.  It would be a simple calculation from there.
1105249
8.5x1000=8500 watts.  415 volts.  W=V*A A=W/V\n\nso 8500watts/415 volts =20.48... Amps\n\nthis is the basic relationship between watts volts and amps.  I dont know if the 3 phase motor part would change that answer.
1023698
You do not.  Get an AC to DC converter then run the motor.
190494
Did you have to call someone to connect the electricity?  If so this is your provider.  If not, you can call your local City or Town Hall or your local Chamber of Commerce and ask who provides electricity to your area.
218186
AC (alternating current) can be transformed into a DC (direct current) by means of a rectifier or bridge rectifier circuit depending on the AC circuit.\n\nA single AC line to ground or common an be rectified by the use of a single diode. This is a crude dc circuit.\n\nUsing a dual AC line, not grounded, where there are two lines, both above ground, then a full wave bridge rectifier can be used. Four diodes are used which rectify both the positive half as well as the negative half of the AC waveform.\n\nThen there is the 3phase rectifier bridge which uses 6 diodes, converting 3 AC lines, they are 120^deg outof phase of each other. Most industrial machines are using 3 phase power.\n\nMachines using this 3 phase power usually have a Motor Control Center which house a AC Drive (AC to DC to AC) inverter. This drive uses devices called IGBT which are active diode devices providing controlled amounts of power at variable frequency to run a machine.\n\nTo smooth out the DC waveform a capacitor bank is attached to the output of the DC bridge rectifier. \n\nAs you drive by an industrial park you will notice three power lines usually connected to each building. This is the 3 phase power. \n\nLarge Hybrid electric vehicles use such machines.
844099
It depends on the applied voltage.  Divide the voltage by the resistance which gives you the amperage.  Now multiply the amperage  with the voltage, and that is your wattage.\nW = V²/R\nThis is straight forward for DC; with AC things become a little more difficult, as because of the fluctuation of the voltage, the average is only .707 of the nominal voltage.
802718
1500 Watts / 170 Watts per panel = 8.8 panels.\n\nFigure on 9 panels.  The next issue is whether to wire them in series for higher voltage or parallel for higher current.  But that depends on the rest of the system.
229900
Electicity in a commercial application is 3 phase, residential electricity is single phase
857340
Not too hard to get a back of the envelope estimate: add the population of your target countries; take half that number as being able to afford cooling; multiply the number by 1kW (because cooling is shared - either airconditioning or refrigerators or freezers, this small figure is justified), and multiply that by 24 hours to get in kWh. I will be surprised if this figure is too far off the actual one.