V DC =Voltage direct current. If you want to calculate energy associated to this active power, fill the Hp to Amps calculation formula, DC, AC, 3 phase, 2 phase, 1 phase: I DC =Direct current. The current is simply the kVA divided by the voltage. Back to top. Terms of Use | About | For three-phase AC circuits where the line to line voltage is known, the formula to convert watts to amps is: I(A) = P (W) V L-L (V) × PF × √3 The current I in amps is equal to the power P in watts divided by the line to line voltage V in volts multiplied by the power factor PF multiplied by the square root of 3. Given the kW and power factor the kVA can be easily worked out. I AC1 Ø =Current/Ampere 1 phase. In certain cases even more advanced options are available. Now, if you look at the “1,000 4 1.732V” portion of this equation, you can see that by inserting the respective 3-phase voltage for “V” and multiplying it by 1.732, you can then divide that quantity into the “1,000” to get a specific number (or constant) you can use to multiply “kW” to get the current draw of that 3-phase load at the respective 3-phase voltage. It can either be direct current, denoted as (DC) or alternating current (AC). Watts Amps Volts Calculator for Android devices, calculate and convert to or from electrical units single (1) phase and three (3) phase calculations. V = voltage in Volt (V) exemple : V1=230 V in 400 V three-phases circuit Close.         U=P/(√3*I*cosφ), Pt=P1+P2+P3 You’ll see the three-phase voltage comes out to. Socialize with us: 1-800-928-5692 | English ... 3-Phase Delta (Balanced Load) 3-Phase Open Delta. getcalc.com's AC Power Calculator is an online electrical engineering tool to calculate the power consumed by the load connected in single phase, three phase or two phase … Three phase kW to Amps. If we need more power then we connect between two or three phases. Ohms(R): Measured Circuit Resistance(Rc): Watts(W): calculate. It can either be Direct Current (DC) or the Alternating Current (AC) single phase/ three phase. News; STEM; Terms and Conditions of Sale; Contact Us. Watts to Amps Calculator. Electric current in amps (A) to How the electric utility industry generates and delivers power to its customers covering Basics, Delivery, Safety and Generation. It is a conversion calculator which transforms the electric current in Amps to electrical energy in Watts. power factor PF times the phase current I in amps (A), times the RMS voltage V in volts (V): The power P in watts (W) is equal to square root of 3 times the power factor The power taken by a circuit (single or three phase) is measured in watts W (or kW). Ohm's Law Calculator. It has three text fields which help in determining the exact units you require after the conversion. It is a standard unit of power and energy. Some refinements are necessary for accuracy. Let's see how this amperage calculator works in practice.         P1=V*I1*cosφ1 reset. Three phase kW to Amps calculations involve a ration of 1000 times kW to the power factor times voltage and an additional factor 1.73 that represents an equivalent of √3 and is added because the circuit is three phase in nature. I AC3Ø =Current/Ampere 3 phase. The two phase calculations are similar to 1 phase with an additional factor 2 in the denominators. Ampere (amps or amperage) is an SI unit of electric current and is denoted by 'A'. … With this ... two-phase or three-phase. amps = (kW × 1,000) ÷ (√3 × PF × volts) 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: Amps ⨯ volts = watts 3 ⨯ 110 = 330 watts. Converting Watts to Amps (AC three phase system) Line to Line Voltage: Calculate the phase current I in amps (A) by dividing the power P in watts (W) by the square root of 3 times the power factor PF times the line to line RMS voltage VL-L in volts (V): (The power factor is the ratio of the real power flowing to the load to the apparent power in the circuit. You can easily find electric power in watts by using the following electric power formulas in electric circuits. 1 Ampere is defined as the electrical current that flows with electric charge of one Coulomb per second. Line to line voltage: W applied = 3 1/2 U ll I cos Φ = 3 1/2 U ll I PF (1) where. Line to neutral voltage P(W) = 3 × PF × I(A) × VL-N (V) Single-phase voltages are usually 115V or 120V, while three-phase voltages are typically 208V, 230V or 480V. Cos φ1, Cos φ2 , Cos φ3 = cosinus phi of each phase (without unit), Hydropower, hydroelectricity online calculation, Power, voltage, current calculator, 1-phase or 3 phase. Amps to Watts Calculator. © Most AC power today is produced and distributed as three-phase power where three sinusoidal voltages are generated out of phase with each other. Air conditioning efficiency : EER, SEER, and COP conversion. Calculate the total 3-phase power, or "Ptotal," by adding the power of each phase together: Ptotal = P1 + P2 + P3. P.F=Power factor. electric power in watts (W) calculator. Manage Cookies. Pt = total power of the circuit in watt (W) P1, P2, P3 = power of phase 1, phase 2 and phase 3 in watt (W) V = voltage in Volt (V) exemple : V1=230 V in 400 V three-phases circuit I1, I2, I3 = current of phase 1, phase 2 and phase 3 in ampere (A) Cos φ1, Cos φ2 , Cos φ3 = cosinus phi of each phase (without unit) The most important three-phase power equations relate power (P, in watts) to current (I, in amps), and depend on the voltage (V). For motors, it is recommended to multiply the nameplate FLA by 1.25 for wire sizing. 208V for a 120V supply 380V for a 220V supply This website uses cookies to improve your experience, analyze traffic and display ads. H.P=Horsepower. RapidTables.com | Single-Phase AC Amps to Watts . Single & Three Phase Line kVA calculator is an online tool used in electrical engineering to measure the unknown quantity by two known quantities applied to the below formulas for single phase and three phase connection. Mathematical equation: Two-phase Amps = [HP * 746] / [E * %age Efficiency * PF * 2] Example: Determine the current flowing through a two-phase, 0.5 HP, 220 volt motor having an efficiency rating of 90% and a power factor of 0.92. Amperes - Enter the maximum current in amps that will flow through the circuit. PF times the phase current I in amps (A), times the V L-N =Voltage line to neutral. As an example, consider a loa… Watt is an SI unit of electric power and is denoted by 'W'. How to use the watts to amps calculator? We have two sets of three-phase watt formula based on the line to line and line to neutral voltage. cos φ = cosinus phi (without unit), P=√3*U*I*cosφ I1, I2, I3 = current of phase 1, phase 2 and phase 3 in ampere (A) Ohm's Law Calculator 3-Phase Delta / Wye Calculator. time value below (number of hours and days the appliance is running) : P=U*I*cosφ U = voltage in Volt (V) Phases - Select the number of phases in the circuit.         Same thing for each phase…         I=P/(√3*U*cosφ) GENERATOR AMP RATINGS - THREE PHASE EXTENDED: 3 PHASE AMPERES - 80% POWER FACTOR* (Extended Table) kW Times 1000 divided by (Volts*1.73) *.80. The first text field requires you to select the current type.         I1=P1/(V*cosφ1) Three-phase power calculator The three-phase power calculator calculates the apparent, active and reactive power for three-phase AC systems. There is also a “power factor” (pf) in the equation that takes account for the difference between the real power (which performs useful work) and the apparent power (which is supplied to the circuit). The formula to find amps for a three-phase AC circuit is a little different from the formula for a single phase circuit: amps = (kW × 1,000) ÷ (√3 × PF × volts) For example, find the current of a 25kW three-phase generator with an efficiency of 80% at 240 volts.         U=P/(I*cosφ), P = power in watt (W) It is a unit of electric current equal to a flow of one coulomb per second. E f =Efficiency. If more than one wattmeter is connected for the measurement, the process becomes convenient and easy to work with instead of taking various readings with one wattmeter. * Use e for scientific notation. About Us. A useful electrical power unit converter to calculate electrical units Watts, Amps, Volts single phase and kW, Amps, Volts and Power Factor three phase. If the voltage and current are not identical in all three phases, you must average the volts and amps of the three phases, so the formula becomes watts = average volts x average amps x 1.73. This chart approximates the amperage of a generator based on the size of the generator and the load on the generator at 100 percent of capacity. AC three phase kilowatts to amps calculation Calculation with line to line voltage The phase current I in amps (A) is equal to 1000 times the power P in kilowatts (kW), divided by square root of 3 times the power factor PF times the line to line RMS voltage VL-L in volts (V): I(A) = 1000 × P(kW) / … Convert Ptotal from KVA into Kilowatts using the formula: P(KW) = P (KVA) x power factor. AC three phase amps to watts calculation Calculation with line to line voltage The power P in watts (W) is equal to square root of 3 times the power factor PF times the phase current I in amps (A), times the line to line RMS voltage VL-L in volts (V): P(W) = √3 × PF × I(A) × VL-L (V) Typically, two options are offered: permanent magnet or auxiliary winding. Watts to Amps calculator It is used to convert the electric power in watts (W) to the current in amps (A). Back to basic, below are the simple Electric Power formulas for Single Phase AC Circuit, Three Phase AC Circuits and DC Circuits. We calculate the supplied voltage by squaring each of the instantaneous voltages per phase, then add all three values together per segment and then take the square root of that number.         V=P1/(I*cosφ1), Pt = total power of the circuit in watt (W) Wattage of a three phase load is then calculated as watts = volts x amps x 1.73. For example, if the motor is drawing 30 amps at 250 volts, you have 30 x 250 x sqrt 3 (about 1.73) = 12,975 watts). If we assume a power … Three-phase AC volts to the watts calculation formula. Both provide the generator with three times their nominal current to cover inrush peaks from the electrical motor, for a minimum duration of ten seconds, via a residuary excitation current. What are volt-amps (VA) used for? Imagine that we want to know the power of a current with 15 amps and a three-phase alternating current, line-to-neutral voltage, with the amplitude of 100 volts (in other words, what is the result of conversion 15 amps to watts for VLN equal 100 volts). You can start by selecting the type of electric current. All rights reserved 2015-2018. On line to Line voltage: The power in watt (W) equal to root 3 times of multiplication of volts (V), Amps (A) and pf. The number of wattmeters required to measure power in a given … Calculate three-phase motor power consumption by multiplying amps by volts by the square root of three (W = AV (sqrt 3). V L-L =Voltage line to line. The real power P in watts (W) is equal to square root of 3, multiplied by the power factor PF, multiplied by the phase current I in amps (A), multiplied by the line to line RMS voltage VL-L in volts (V). line to line RMS voltage VL-L in volts (V): The power P in watts (W) is equal to 3 times the The relationship between kVA and kW is the power factor (pf):Single phase system - this is the easiest to deal with. The product of the voltage and current is the apparent power and measured in VA (or kVA) . Real Power. I AC2Ø =Current/Ampere 2 phase. To calculate kVA, you need to enter the known values of voltage and the current into the respective fields. Calculate three phase power from voltage, current and power factor - Three Phase Voltage (V): Current (A): Power Factor: Calculate current from three phase apparent power and/or active power - Apparent power (kVA): Active power (kW): × Three Phase Calculation. 2. Convert watts to kilowatts by dividing the number of watts by 1,000. Watt is the unit of power, represented using the symbol 'W'. With single-phase AC power there is only one single sinusoidal voltage. Quick VA to Watts calculator with step by step formula and conversion explanation.         I=P/(U*cosφ) Using the above example: Ptotal = 39KVA + 33.6 KVA + 27.5 KVA = 100.1 KVA. Ampere is the SI unit of electric current represented as 'A'. power factor PF times the phase current I in amps (A), times the line to neutral RMS voltage VL-N in volts (V): Do not use typical power factor values for accurate calculations. E.g: 5e3, 4e-8, 1.45e12. Knowing the RMS current helps you to correctly size the cables and circuit breakers, protections, breaker or fuses that supply power to your device. For measuring the power in a 3 phase or Poly Phase system, more than one wattmeter is required, or more than one readings are made by one wattmeter. Privacy Policy | Enter the power in watts and the voltage in volts before clicking the ‘Calculate' button which performs the conversion. Power generator, genset, diesel or gaz generator : calculation of consumption, energy and power. Refer to operational specifications to find the power factor associated with the system. P1, P2, P3 = power of phase 1, phase 2 and phase 3 in watt (W) I = current in ampere (A) The power P in watts (W) is equal to the current I in amps (A), times the voltage V in volts (V): The power P in watts (W) is equal to the