If we plug in the values correctly, the equation looks like this: The motor operates at a power factor of 0.8. Let’s say we want to find the current flowing through a 5 kW solar system connected to a 230 V single-phase AC motor. Single-phase circuits rely on one neutral wire and one power wire.įor this formula states we multiply the power, in kilowatts, by 1000 and divide that by the product of the voltage and the power factor to get the current.

The second formula we’re going to look at is used in single-phase AC circuits. This also serves as a kWh to amp calculator as we can remove time as a variable from that calculator if we don’t need it in our final answer. This formula takes the given kW and converts it into the unknown amperage. Well, if we use our formula and substitute in the given values, we have 5 kW multiplied by 1,000, divided by 100, which gives us 50 A: If we have a solar system rated at 5 kW with a 100 V DC motor powering it, what is the current flowing through the system? The first formula is used in DC circuits and states that the current, or amperage, equals the kilowatts multiplied by 1,000, divided by the voltage: The first is converting kW to amps for DC, then single-phase AC, and finally three-phase AC. One of the things that can make this topic so complicated is that there are three different formulas for different scenarios, and it’s not always clear when you’re supposed to use one over the other. For our calculation, you need to know two variables and there’s only one direct approach to calculating the answer. Using a kW to amps calculator has a few more steps than a simple kWh per square foot calculator. Now that we’re clued up on both of the variables in our calculator, we can look at how to do these calculations ourselves. But the reality is current flows from negative to positive. If we’re doing any calculations or conversations, we use conventional current. However, the actual flow of electrons goes from negative to positive. This is what electrical engineers call “conventional current”. Actual Electron FlowĬurrent flows from positive to negative. The minute we start to draw 45 A from our 15 A fuse it melts and the circuit breaks.īefore we can look at how to convert kWh to kVA or figure out how to use a kW to amps calculator, we need to distinguish between conventional current and electron flow. If we have a 15 A fuse with 5 A flowing through it, the fuse can do its job and ensure that the current is protected. One of the things you need when you’re setting up your solar system is a fuse. If the circuit is broken, the current stops flowing and the electrons can’t jump the gap. The battery’s negative terminal pushes the negative electrons away, which causes the current to flow. When current flows in the circuit, all the electrons move simultaneously. This then goes through the lightbulb to the positive side of the battery, completing the circuit. Let’s say we have a simple circuit consisting of copper wire, a battery, and a lightbulb.Įlectrons flow from the negative end of the battery through the copper wire. This current is measured in amps, short for amperes, which is an indication of the number of electrons flowing per second. When electrons flow through a circuit, we get an electric current. In this equation, all we do is multiply the kilowatts of a circuit by the time it’s operational to find the kWh. Provided we understand this concept, using a kW to kWh calculator is simple. If we have an array of portable solar panels for home use rated at 2 kW, this means that on a perfectly sunny day, the maximum output of this solar system is 2 kW, though it will regularly produce less than that. We also use watts and kilowatts in solar equations to measure how much electricity the system produces. When we multiply the resulting watts by 1,000, we get kilowatts. Watts are obtained by multiplying voltage and current according to Watt’s Law. When we speak about power, we’re referring to the rate at which appliances consume energy. We have mentioned below formulae which are standards for converting KiloWatts to Amperes in DC or AC.A kilowatt is a measure of electrical power equivalent to 1,000 W. Note: We need to use e for scientific notation such as 5e3, 4e-8, 1.45e12 You can breakdown units further by calculating the % of electricity consumed by the electronics in your home if you can fill the required details correctly.

Just enter the few details such Current Type, number of KWs, Voltage and hit calculate. By using the tool, you can breakdown the energy consumed at your home easily and cut on the cost as well.

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