answersLogoWhite

0

A kilowatt-hour is a unit of energy. The amp is a unit of electric current. Current and Energy are fundamentally different things, and cannot be compared directly. To determine the energy dissipated by a current one would need to know the time for which it flowed, and the potential difference through which the associated charge was moved. the product of current by potential difference by time would give the energy. If one assumes the current flows for one second through a potential difference of one volt then the energy in joules would be numerically equal to the current in amps. One kilowatt-hour (kWh) is 3,600,000 joules, so to get the answer in kWh divide the energy, expressed in units of joules, by 3600000 .

Or you can use an easier method, its called Ohms law however one element is missing, the voltage is required. according to Ohms law Watts= Volts x Amps so if the circuit is 120 Volts the answer would be found by 1000 watts (1kW) divided by 120 volts and you get 8.333 Amps forget the Joules unless your a master electrician and fully understand it, even though we use Ohms law because it is sooooo much easier. if you Google the Ohms law chart remember Power is represented by a P Current is Amps and will be represented by C or R, Resistance is Ohms and is represented by a R and Voltage is represented by E

User Avatar

Wiki User

12y ago

What else can I help you with?

Continue Learning about Engineering

How do you calculate DC kW to amps?

In a DC circuit Power (P) in watts is equal to Voltage (E) times Current (I). 1000 Watt = 1 kW P = EI thus I= P/E For kW then I = (P x 1000)/E Example with Power of 2 kW and Voltage of 250 V DC: I = (2000/250) = 8 Amp


How do you calculate load in KW?

You have to know 2 things in order to perform the calculation. You will need to know the power (KW) and either the amps or the voltage. If you know voltage you can determine amps and if you know amps you can determine voltage. However with solely the KW you do not have enough information to calculate either. Here is the formula: 1 Phase: KW = (E x I x pf)/ 1000 3 Phase: KW = (1.732 x E x I x pf)/1000 Where E is voltage, I is current, and pf is Power Factor


How do you calculate 10 mw windmill power to kw?

1 MW is 1000 kW therefore 10 MW is equal to 10,000 kW.


Single phase 220 volts 2.6 kW how many amps?

You cannot convert 2.6 kw to amps with that information only. In order to convert watts to amps, you also need to know either current or voltage. This is because watts is volts times amps, and volts is current times resistance


How many amps does 1 phase 220volt 7.5 HP draw?

Look at the motor nameplate and it shoud have the amp draw on it. If the nameplate is missing, then the amp draw depends on what type of motor it is. The basic calculation to get you in the ball park would be as follows: 1 HP = 0.75 KW 7.5 HP = 5.63 KW Assume the efficiency of the motor is 80%, then the power supplied will need to be 5.63/0.8 = 7.04 KW amp draw = 7040/220 = 32 amps <<>> For calculation purposes the electrical code book states that a 7.5 HP motor draws 40 amps.

Related Questions

How many kwa in kva?

There are 1,000 watts (W) in a kilowatt (kW) and 1,000 volt-amps (VA) in a kilovolt-ampere (kVA). Therefore, 1 kVA is equal to 1 kW.


How many amps in1 KW for a 240v sistem?

In a 240V system, 1 kW is equal to approximately 4.17 amps. This calculation is done by dividing the power in watts (1000 watts for 1 kW) by the voltage (240V) in the system.


How many watts is 1.4 kw?

There are zero amps in 14 kW. A voltage needs to be stated. I = W/E, Amps = Watts/Volts.


How many BTU per hour is equal to 1 kW?

1 kW is equal to about 3,412.14 BTU/hour.


How many KW per Hp?

1 hp is equal to 0.746 kW.


How many kw does it take to make 100 amps?

If the 100 amps is powered by 10 volts, you have 1 kw, or 1000 watts. watts = volts X current The 'k' simply means kilo, or thousand.


How many amps for a 13.8 kw cooker?

The formula you are looking for is Amps = kW x 1000/1.73 x Volts x pf. The pf (power factor) of resistance heating will be 1. If the cooker was rated in kVA the same formula would be used minus the pf.


1 kw equal to how many units?

1 kilowatt (kW) is equal to 1 kilowatt-hour (kWh) when used continuously for one hour. So, if you use a 1 kW appliance for one hour, it will consume 1 kWh of electricity.


How many watts in a Kva?

A VA is a volt-ampere, or volt-amp, and a kilo (K) is one thousand. This makes a KVA a kilovolt-ampere, or kilovolt-amp. If we have 1,000 volt-amps, and one volt times one amp is equal to one watt (W), which it is, 1,000 volt-amps is equal to 1,000 watts, or 1 KW. All that said, 1 KVA is equal to 1 KW.Sometimes in an ac system, the watts is less than the volts times the amps, and in that case the watts is equal to the volts times the amps times the power factor. The power factor is less than one. The power factor for a typical electric motor is 0.7, so then there are only 700 watts in a kVA.


How many kW is a MW?

1 MW is equal to 1000 kW, since "kilo" means 1000 times the base unit.


500 kw equals how many watts?

1 kilowatts = 1,000 watts 500kw=500,000w


What is the relationship between kw and current?

The formula you are looking for is Watts = Amps x Volts. killo = 1000 1 kw = 1000 watts.