HP to Amps in 3 Phase AC Circuits. When did organ music become associated with baseball? All Rights Reserved. Who is the longest reigning WWE Champion of all time? I should of checked the voltage. For three phase circuits the power factor is the square root of 3. The power factor of the motor is 0.85. The formula is: HP= E(volts) X I(amps) X %EFF (efficiency) X PF (power factor) X 1.73 (the Square root of 3) divided by 746 (number of watts in 1 HP).The EFF and PF of the motor should be sh. The three phase current for a 10 HP motor is listed as 28 amps at 230 volts. AC three phase kilowatts to amps calculation Calculation with line to line voltage. Typical Full-Load Motor Current Chart for Three Phase Alternating-Current Motors: The following values of full-load currents are typical for motors running at speeds usual for belted motors and motors with normal torque characteristics. Why don't libraries smell like bookstores? Copyright © 2020 Multiply Media, LLC. What is the Formula for calculating hp of 3 phase motor? What is causing the .6 reading on one leg? What is the time signature of the song Atin Cu Pung Singsing? Amps per leg on three phase?? What is the hink-pink for blue green moray? Full-Load Amps: Three-Phase Alternating-Current Motors. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. If you are 13 years old when were you born? 02-24-2017, 06:36 PM #2. Pagkakaiba ng pagsulat ng ulat at sulating pananaliksik? How long will the footprints on the moon last? 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 V L-L in volts (V): Note: The AC three-phase current I (A) can be measured in phase side At the same time Line current, I (A) is equal to 746 times of the power P (HP) in HP divided by root three times of the voltage V (V) in Amps. Decided to check the amps on a three hp motor. Source: NFPA 70, National Electrical Code, Table 430.250; Induction-Type Squirrel Cage and Wound Rotor (Amperes) Synchronous-Type Unity Power Factor (Amperes) HP 115 Volts 200 Volts 208 Volts 230 Volts 460 Volts 575 Volts 2300 Volts NOTE: Direct Current formulae do not use (PF, 2, or 1.73); Single phase formulas do not use (2 or 1.73); Two phase-four wire formulas do not use (1.73); Three phase formulas do not use (2) * For three-wire, two phase circuits, the current in the common conductor is 1.41 … What is the rising action of faith love and dr lazaro? Formula: 3 phase Amps = [HP * 746] / [E * % Efficiency * PF * 1.73] A 1/4 HP, 220 volts motor has an efficiency rating of 95%.

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