# Motor kw calculation

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Motor No load Calculator: Choose the motor type, then enter the full load current of the motor. Then press the calculate button to motor get no-load current. Also, the motor rated below 3 HP the motor will take up to 40% to 60% of the full load current at the delta connection. Select current type: […]Electrical motor loads are calculated from power in kW and full rated load in kW.Following is the formula how to calculate Motor loads. Example : We have 1 unit Induction Motor with 30 horsepower (hp),running with 34.9 amps for amperage load and 460 volts 3 phase and power factor value is 0.75 and motor efficiency is 85%Calculation: Guide to Standard Uints: Power Calculator: Kilo Volt Amperes: kVA: Converting kVA to kW: KiloWatts (1000 watts = 1 kW) kW: Converting kW to kVA: Ampere (Volt-Amperes or Current) I: Converting kW to HP: Volts: E: Amperes when kVA is known: Power Factor: PE: kVA Required to run motors: Percent Efficiency %EFF : Horse Power: HP 1 hp (M) = 735.49875 W = 0.73549875 kW. So the power conversion of kilowatts to horsepower is given by: P(hp) = P(kW) / 0.73549875. Example. Convert 10kW to metric horsepower: P(hp) = 10kW / 0.73549875 = 13.596 hp. AC, DC Amps to Kilowatts manual calculation Amps (DC) to kW formula: P (kW) = I (A) × V (V) / 1000 Power (P) in kilowatts equal to current (A) amps, multiplied by voltage in (V) volts divided by 1000. The three phase power calculator calculates the active and reactive power current from the following parameters: Voltage (V): Enter the phase-to-phase ($$V_{LL}$$) voltage for a 3-phase AC supply in volts. Current (I): Enter the the current in Amperes (A). Power factor (cosΦ). Enter the power factor of the load. There-phase power calculation:Wholesale electrical supplies. An electrical distributor supplying everything from light bulbs and dimmers to PLCs and Industrial Automation equipment. Hundreds of electrical products and tools to select from. Use the chart in this calculation guide to find the formula you need according to the measure you will calculate.Motor No load Calculator: Choose the motor type, then enter the full load current of the motor. Then press the calculate button to motor get no-load current. Also, the motor rated below 3 HP the motor will take up to 40% to 60% of the full load current at the delta connection. Select current type: […]kW = kilowatts. E = V = voltage. SF = Service factor. PF = Power factor. kW and HP are used to represent the power. Whereas 1 HP = 745.6 kW %Efficiency of the motor is defined as its rated efficiency and it is ration between output input. Service factor is the ratio of actual maximum power to the rated power mentioned on the plate of the motor.Here are several lame formulae to support calculations: where P is power (Watt or kWatt), τ is torque (Nm), ω is the angular velocity (radians per second), and dot represents the scalar product. Calculator accepts angular speed in RPM (rounds per minute) and the conversion to radians per second is simple. since one round is radians.Then simply you have to tap on calculate button and it will perform the calculation in a single click. The reset button erases everything in the text fields and can be used for further calculations. Conversions according to current types: 1. DC amps to kilowatts calculation P(kW) = I(A) × V(V) / 1000 P [HP] , P [kW] = Motor power rating (HP or kW), V = Motor rated voltage (Volts), η = Motor efficiency in decimal form, cos ϕ = Motor power factor, 1000 = Conversion factor to convert kW to W, 746 = Conversion factor to convert HP to W. You may also be interested in our Transformer CalculatorIt has been programmed to work efficiently in delivering the results with a single click of the Calculate Button. Calculation of Kilowatt to Kilowatt-hours E (kWh) = P (kW) x t (hr.), which means that the energy in Kilowatt-hours is calculated by multiplying the power in Kilowatts by the time in hours.Calculation: Find the shaft torque of the 10 hp induction motor whose rotor speed is 1500 r/min. Solution: τ ind = (10 hp * 746 kW/hp) / (1500 r/min * 2 π rad/r * 1 min/60 s) = 47.49 Nm Starting Current calculatorMotor rated torque: 98.83 Nm The motor toque T in N.m is calculated with the following equation: $$T=\displaystyle \frac{60}{2\pi}\cdot \displaystyle \frac {P \cdot 1000}{n}$$ Parameters: Motor rating (P): Motor rating in kW. Motor speed (n): Motor speed in RPM. The motor speed for AC motors can be caculated with the Motor speed calculator.Electrical motor loads are calculated from power in kW and full rated load in kW.Following is the formula how to calculate Motor loads. Example : We have 1 unit Induction Motor with 30 horsepower (hp),running with 34.9 amps for amperage load and 460 volts 3 phase and power factor value is 0.75 and motor efficiency is 85%E (kWh) = P (kW) x t (hr.), which means that the energy in Kilowatt-hours is calculated by multiplying the power in Kilowatts by the time in hours. = 0.027 kW. Shaft Pump Power. The shaft power - the power required transferred from the motor to the shaft of the pump - depends on the efficiency of the pump and can be calculated as. P s(kW) = P h(kW) / η (3) where . P s(kW) = shaft power (kW) η = pump efficiency. Online Pump Calculator - SI-unitsMOTOR FORMULAS AND CALCULATIONS: The formulas and calculations which appear below should be used for estimating purposes only. It is the responsibility of the customer to specify the required motor Hp, Torque and accelerating time for his application. ... kW x 1000 E x pf: kW x 1000 1.73 x E x pf: Amperes when kVA are known: kVA x 1000 E: kVA x ...The three phase power calculator calculates the active and reactive power current from the following parameters: Voltage (V): Enter the phase-to-phase ($$V_{LL}$$) voltage for a 3-phase AC supply in volts. Current (I): Enter the the current in Amperes (A). Power factor (cosΦ). Enter the power factor of the load. There-phase power calculation: kW to tons conversion calculator How to convert tons to kW. One refrigeration ton is equal to 3.5168525 kilowatts: 1 RT = 3.5168525 kW. One kilowatt is equal to 0.284345 refrigeration ton: 1 kW = 0.28434517 RT . So the power P in kilowatts (kW) is equal to the power P in refrigeration tons (RT) times 3.5168525: P (kW) = P (RT) × 3.5168525 ... Calculation: Guide to Standard Uints: Power Calculator: Kilo Volt Amperes: kVA: Converting kVA to kW: KiloWatts (1000 watts = 1 kW) kW: Converting kW to kVA: Ampere (Volt-Amperes or Current) I: Converting kW to HP: Volts: E: Amperes when kVA is known: Power Factor: PE: kVA Required to run motors: Percent Efficiency %EFF : Horse Power: HPTorque (Nm) to kW calculation: Motor power P (kW) in kilowatt is equal to motor torque T (Nm) times of 0.105 times of the speed divided by 1000. The torque to kW conversion formula can be written as, Apply our kilowatt to torque conversion formula, The motor power P (kW) = 0.105* T (Nm) *N (rpm) / 1000.Calculation: Guide to Standard Uints: Power Calculator: Kilo Volt Amperes: kVA: Converting kVA to kW: KiloWatts (1000 watts = 1 kW) kW: Converting kW to kVA: Ampere (Volt-Amperes or Current) I: Converting kW to HP: Volts: E: Amperes when kVA is known: Power Factor: PE: kVA Required to run motors: Percent Efficiency %EFF : Horse Power: HP Amps to kW calculator * Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12. DC kilowatts to amps calculation. The current I in amps (A) is equal to 1000 times the power P in kilowatts (kW), divided by the voltage V in volts (V):. I (A) = 1000 × P (kW) / V (V). AC single phase kilowatts to amps calculationCalculate the power the motor consumes while in operation. The equation is W = AV (sqrt 3) where A is amperes, V is volts, and sqrt 3 is the square root of 33 (about 1.73). W is the power consumption in watts. For example, if the electric motor uses 50 amps at 240 volts, the wattage is 50 x 240 x 1.73, or 20,760 watts. Enter the motor rated voltage in volts (V) Enter the motor power rating and select the appropriate unit (HP or kW) Enter the power factor and efficiency of the motor Click on the "Calculate" button to see the results. Torque (Nm) to kW calculation: Motor power P (kW) in kilowatt is equal to motor torque T (Nm) times of 0.105 times of the speed divided by 1000. The torque to kW conversion formula can be written as, Apply our kilowatt to torque conversion formula, The motor power P (kW) = 0.105* T (Nm) *N (rpm) / 1000.Similarly, Full-load Current, sometimes abbreviated as I full-load is the current required for an AC induction motor to run with its maximum load or rated power. The measurement unit for current is Amperes often used as amps. Formulas to calculate 3 phase AC induction motor starting, running & full-load current Motor Load Calculator. What does it cost each year to operate an electric motor? With the motor load calculator you can quickly estimate annual energy use and cost for any electric motor. The calculator is a versatile energy management tool which accepts measured current, full load amps or rated horsepower inputs.Aug 30, 2020 · Now you know how many kilowatt-hours (kWh) the device uses every day. To calculate your kWH per month or per year, just multiply by the number of days in that period. Example: Over the course of a 30-day month, your fan would use (1.25 kWh / day) x (30 days / month) = 37.5 kWh per month. The highest rated motor is the 120V motor at 34 FLC. The other motor(s) in the group (phase) is the 10-hp 3-phase motor, as indicated by the shaded area. The NEC does not permit the use of motor nameplate FLA to determine the conductor ampacity; the branch-circuit short-circuit, and ground-fault overcurrent device size; or the ampere rating of ... For a single phase AC circuit the formula to convert kilowatts (kW) to amps is: amps = (kW × 1,000) ÷ volts It is possible to find the amperage from kilowatts if you know the voltage of the circuit using Watt’s law. Watt’s Law states that current = power ÷ voltage. RLA - "Running Load Amps" - current drawn during normal operation of electric motor. FLA - "Full Load Amps" - amount of current drawn when full-load torque and horsepower is reached for the motor. FLA is usually determined in laboratory tests. Note! - in the calculator above FLA is RLA + 25%. 1 hp = 0.745 kW; Related Mobile Apps from The Engineering ToolBox For greater ease we explain that formula is used for the calculation, how to convert from kW to Ampere in just 3 steps, some examples and a table with the main conversions from kW to Amperes. We also show the most common power factors of different constructions, household electronics and motors.kW = kilowatts. E = V = voltage. SF = Service factor. PF = Power factor. kW and HP are used to represent the power. Whereas 1 HP = 745.6 kW %Efficiency of the motor is defined as its rated efficiency and it is ration between output input. Service factor is the ratio of actual maximum power to the rated power mentioned on the plate of the motor. kW to amps calculator * Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12. DC amps to kilowatts calculation. The power P in kilowatts (kW) is equal to the current I in amps (A), times the voltage V in volts (V) divided by 1000:. P (kW) = I (A) × V (V) / 1000. AC single phase amps to kilowatts calculation