![]() ![]() Therefore, the current in the system is approximately 60.6 amps. Suppose we have a three-phase electrical system with a line-to-line voltage of 480 volts and an apparent power of 50,000 VA. The resulting unit of current is amps (A). To calculate the current, multiply the apparent power by 1000 and divide the result by the square root of three times the line-to-line voltage. The equation relates the current in amperes (I) to the apparent power in volt-amperes (V) and the line-to-line voltage in volts (VL-L). Mathematically this can be expressed as I (A) = S (VA) / V (V). The actual intensity of the electric current, measured in amperes, can be calculated by dividing the apparent power, measured in volt-amps, by the voltage, measured in volts. We design all our power converters with surge protection, so you don’t have to worry about voltage fluctuations damaging your devices, and on top of that, we offer damage recovery up to $10,000 on our products.Amps to VA calculator ► Formula to Convert Single-Phase VA to Amps Typical power factor values Do not use typical power factor values for accurate calculations. If you are thinking about moving to another country, but you are worried about connectivity of your appliances, ACUPWR is here to help. ![]() If you need to use your device with variable ratings, ACUPWR power converters can serve you better, as they can effectively make conversions between one voltage level to other.ĪCUPWR has a huge collection of voltage transformers with different power ratings that can be used all over the world with all kinds of devices. However, ACUPWR voltage transformers can adjust the frequency rate in order to match the needed speed of your appliance. For example, you should not use an appliance rated for 110 volts and 50 hertz with a power supply rated for 220 volts and 60 hertz. Generally, it is not possible to connect appliances with different supply ratings. Our products come with guaranteed protection. Instead of taking that risk, choose an American-made, UL-approved ACUPWR power converter. When we talk about sophisticated refrigerators, we need to take additional care when it comes to converting voltage, because one low-quality product can cause serious damage to your expensive appliance. Give your appliances the ability to achieve optimum performance around the world with ACUPWR products, with voltage transformers and power converters for any voltage and any major application. Its internal circuitry may suffer a huge loss. Most of the appliances on market do not make accurate adjustments for hertz rate, and because of this, the performance of your appliance is slowed. We provide high-quality power converters for refrigerators, freezers, coolers and more, with the ability to switch effortlessly between the power standards you need. Your equation would be:ĪCUPWR is the leading manufacturer for voltage transformers. P = √3 ⨯ PF ⨯ A ⨯ V Line to Natural VoltageĪssuming the power loads are balanced, the equation for determining power in watts for line to natural voltage would be almost exactly the same, except you multiply the amps, voltage, and power factor by three instead of the square root of three. Power in watts is calculated by multiplying the square root of three by the power factor, the current in amps, and the line-to-line RMs voltage in volts. Power in watts can then be calculated as: You need a transformer for appliance that is rated as 0.8 power factor, 3-amp phase current, 110-volt RMS voltage. The power factor is the ratio of “real” electric power used to do work to the “apparent” power given to the appliance. If you need calculations for single phase devices, then real power in watts will be given in terms of a power factor (PF) multiplied by the root-mean-square voltage multiplied by the phase current. If you want to know the power consumption in watts for an appliance with a current of 3 amps and a voltage of 110, your calculation would be:ģ ⨯ 110 = 330 watts 2. ![]()
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