We can also rewrite the outcome using scientific notation, P = 8.8×10⁻² hp. Rearrange the formula of hp to amps for the three-phase line-to-line system P = I × √3 × V × PF × η / 746.Īpply the values (we can approximate the square root of 3 as 1.73), P = 0.5 × 1.73 × 100 × 0.8 × 95% / 746.
5.2 KW TO AMP HOW TO
What is the motor's nominal power if it runs with the applied three-phase line-to-line voltage of 100 V, the flowing current equals 0.5 A, while the efficiency and power factor are 95% and 0.8, respectively? Let's see how to solve it: You can also use our tool as an amp to hp calculator. In this case, a 1 hp motor to amps gives 4.505 A. We round the outcome to four significant figures. Make a fraction of these numbers and find the final horsepower to amps value, 746 / 165.6 = 4.505 A. Put the values in the equation: Amps 500/120 4.17 amperes or amps Related Article 1 To 5 Ton AC AMP Use Kilowatts Vs. You can always convert a decimal to percent to make your life easier ( 90% = 0.9). Let's work out the result step by step using the appropriate horsepower to amps formula:Įstimate the power in watts (the nominator of the expression), 1 hp × 746 = 746 W.Įvaluate the product in the denominator, 200 V × 0.92 × 90% = 165.6 V. The engine's efficiency is 90%, while the power factor is 0.92. The engine's designed power is 1 hp, and it works with a voltage equal to 200 V. For example, if you have a 2 Ah battery rated at 5 V, the. Solution I (A) P (W) / V (V) 214 W / 145 V 1. Let's say we want to find the current flow in an AC single-phase motor. Insert the Amp hours (Ah) and voltage (V) below and click on Calculate to obtain Watt hours (Wh). You can find a more detailed description with examples in Omni's power factor calculator. You can also enter any two known values to calculate the third one, this way you can use it to convert Ampere to watts or voltage to watts or can also use. The resistive-only loads result in values close to unity. LG 5.2kW Inverter ARTCOOL Stylish, R18AWN, thumbnail 0. PF is the power factor that tells us about the nature of the source. Click for pictures, reviews, and tech specs for the LG 5.2kW Inverter. We can distinguish three different cases: The hp to amps calculations change a little for alternating current (AC). However, using our hp to amps calculator, you don't need to bother about unit conversion at all, as the tool converts between units automatically, so simply choose the one you work with! Here we are assuming you're using electrical horsepower (for mechanical horsepower, the factor is circa 745.7). A rule of thumb states that you should multiply the power in hp by 746 to get the power in watts.
Knowing that we can write the hp to amps formula for direct current (DC) as:Īs the SI unit of power is the watt, it's common to use power converter before estimating the amperage.
However, it changes a bit in real-life applications, as any power engine works with a certain efficiency, η.
According to Ohm's law, the output current I is a ratio of the power P and the output voltage V.
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