Horsepower to amps calculator
[PDF File]Wattage Worksheet
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Air Compressor – 1/4 HPElectric Drill – 3/8", 4 Amps Air Compressor – 1 HPElectric Drill – 1/2", 5.4 Amps Hammer Drill Planer/Jointer – 6" Table Saw/Radial Arm Saw – 10" Belt Sander 300 500 1000 600 960 440 600 1000 1400 1800 1800 2000 1200 970 1600 0 0 0 1200 960 600 900 3000 2300 1800 1800 2000 2400 1600 4500 Wattage Worksheet
[PDF File]Motor Formulas
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HP = Horsepower BHP = Break Horsepower (Motor) r = running np = nameplate Max. Motor sheave = Existing Motor sheave Dia. X ExsistingEstimatedBHP Max.BHP 3 Ohm's Law: V=A×R R V A = A V R = Single Phase: P=××V A PF V P A PF = × A P VPF = × 746 V A Effiency PowerFactor BHP × × × = Estimated BHP from Amps and Volts: np V np A read Volts ...
[PDF File]MOTOR FULL LOAD CURRENTS - Weschler
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Over 200 Horsepower: approximate Amperes/Horsepower 2.75 2.4 1.2 0.96 0.24 0.133 Warning Standard Current Transformers are rated for use on circuits up to 600VAC. Supplemental insulation is required for higher voltage circuits. Shielding or breakdown testing required above 2500V.
[PDF File]Motor Current Rating Chart - Sprecher
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Caution: The actual motor amps may be higher or lower than the average values listed above. For more reliable motor protection, use the actual motor current as listed on the motor nameplate. Use this table as a guide only. Horsepower AC Induction Motors Single Phase Three Phase 115 Volt 230 Volt 200 Volt 230 Volt 380-415 Volt 460 Volt 575 Volt
[PDF File]Wastewater Treatment Mathematical Formulas
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(Volts )(Amps) Horsepower 1,000 watts/kilowatt (Volts) (Amps) (Power Factor) Kilowatts, single -phase 1,000 watts/kilowatt (Volts) (Amps) (Power Factor) (1.732) Kilowatts, three-phase (Volts)(Amps) Watts Power Factor Fleming Training Center 6 Wastewater Treatment Formulas MHP BHP WHP % motor eff
[PDF File]www.mechreps.com FORMULAS & CONVERSIONS CONVERSION FACTORS ...
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Horsepower BTU / Hr. 2545 Horsepower (boiler) BTU / Hr. 33479 Horsepower (boiler) Kilowatts 9.803 Inches of Mercury Feet of Water 1.133 ... Amps when HP is known HP x 746 V x %EFF x PF HP x 746 V x %EFF x PF x 2 HP x 746 V x %EFF x PF x 1.73 Amps when KW is known KW x 1000 V x PF ...
[PDF File]Wire Size Chart - Single Phase - Munro Pump
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Amps Copper Wire Size Volts HP KW 12 10 8 6 4 2 0 00 000 0000 250 300 350 400 500 600 208 (3ø) 1-1/2 20 10 6.6 1.12 530 843 1340 2131 3389 5385 8576 10809 2 20 15 7.5 1.49 407 648 1031 1639 2607 4145 6597 8310 3 20 15 10.6 2.24 289 459 731 1162 1849 2939 4678 5896 7433 9373
[PDF File]Power Conversion Formulas 2016
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Horsepower Kilowatts Watts 1 .746 746 Kilowatthour to BTUs Kilowatthour BTUs 1 3,412 1 kWh = 3,412 BTU (based on U.S. consumption, 2013) Efficiency HP Watts 85% 1.746kW/.85 = .878 90% 1.746kW/.9 = .829 The efficiency of a motor can be found on the nameplate on the motor. **Notes: - Annual Standard numbers are the suggested preventive ...
[PDF File]AUGER SPEED CHART MOTOR HP RECOMMENDATIONS
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6" 8" 10" 12" 6" 8" 10" 12" 583 438 10' 1.5 hp 2 hp 2 hp 3 hp 10' 2 hp 2 hp 3 hp 5 hp 350 15' 1.5hp 2 hp 2 hp 3 hp 12' 2 hp 2 hp 3 hp 5 hp 292 25' 2 hp 3 hp 3 hp 5 hp ...
[PDF File]Engineering Info - MasterDrives
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Horsepower Watts HP = Watts / 746 Horsepower Kilowatts HP = KW / .746 Motor Power (Watts), Single Phase Volts, Amps, Pf, Eff. Watts = V x Amps x Pf x Eff. Motor Power (Watts), 3 Phase Volts, Amps, Pf, Eff. Watts = 1.73 x V x Amps x Pf x Eff. 10. Temperature Degrees Fahrenheit oDegrees Centigrade F = (1.8 x o C) + 32
[PDF File]Cowern Papers - NASA Infrared Telescope Facility
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AMPS Full Load Amps The amount of current the motor can be expected to draw under full load (torque) conditions is called Full Load Amps. it is also know as nameplate amps. Locked Rotor Amps Also known as starting inrush, this is the amount of current the motor can be expected to draw under starting conditions when full voltage is applied.
[PDF File]Amp chart - Cummins Inc.
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AMPS - When Horsepower is known HP x 746 Volts x % Eff. x PF HP x 746 1.732 x Volts x % Eff. x PF HP x 746 Volts x % Eff. Electric Motor Horsepower Output (HP) Volts x Amps x % Eff. x PF 746 Volts x Amps x 1.732 x % Eff. x PF 746 Volts x Amps x % Eff. 746 Actual measurements may vary depending upon the application and load size.
[PDF File]Understanding Horsepower and Water Horsepower: Efficiency ...
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one horsepower (Figure 1). WATER AND PUMP HORSEPOWER To fully understand water horsepower, it is important to understand the terminology involved in deriving such a unit. The term “energy” is defined as the capacity to do work. “Power” is the rate at which energy flows or at which energy is used per unit of time; it is also
[PDF File]Determining Electric Motor Load and Efficiency
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usually near 75% of rated load. Thus, a 10-horsepower (hp) motor has an acceptable load range of 5 to 10 hp; peak efficiency is at 7.5 hp. A motor ’s efficiency tends to decrease dramatically below about 50% load. However, the range of good efficiency varies with individual motors and tends to
[PDF File]How We Calculate MCA and MOP - Titus HVAC
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Motor Amps” on the calculator screen. Maximum Overcurrent Protection (MOP) is a bit more complicated. First, a basic calculation is made, and then a number of filters or conditions will alter the computed MOP value to arrive at the final value that appears on a product nameplate.
[PDF File]Motor Circuit Protection Tables
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Motor horsepower ratings are listed in Column 1. Full load amps from Tables 430.247 through 430.250 are provided in Column 2. Column 3 Various fuse types are listed in Column 3. The LPJ_SP is a 600Vac, 0 - 600 amp, time-delay, Class J, “Low-Peak fuse, with a 300,000 amp interrupting rating. The
[PDF File]Sizing a Generator for a Specific Electric Motor Load, or ...
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159 LRA. The generator must produce 159 Amps at 460 Volts, to safely start this motor. Use formula: 1.73 x Volts x Amps x .8 / 1000 for generator KW size. BOTH SINGLE PHASE AND THREE PHASE MOTOR SIZING EXAMPLES ARE BASED ON INFORMATION IN NATIONAL ELECTRICAL CODE HANDBOOK, ARTICLE 430.7 AND IS
[PDF File]Appendix 9C: Design Calculations for Electrical Design
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1 horsepower (hp) = 746 watts. Note: Motor hp rating relates to motor mechanical output. To determine motor input kVA requirements, the motor efficiency and power factor must be accounted for. In general, for preliminary or rough load calculations, assume: 1 kVA of electrical input power for 1 hp of motor. Example 9C-1 Motors
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