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Conveyed volume calculation for a gear pump The oil volume enclosed in the gap between teeth is conveyed from the intake to the discharge side of the pump by the turning of the gear displaced to the contact point of the wheel and forced into the pressure connection per rotation cm³ D =.

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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.

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A motor or a generator is a fairly efficient means of converting electrical power to mechanical and mechanical to electrical The mechanical output of a motor is the product of rotational speed and the torque In metric units Watt the rotational

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How to convert from kW to Amperes in just 3 steps Multiply the kW by 1000 For example if you have a refrigerator that consumes 1.2kW you must multiply 1 2 1000 obtaining 1200 1 2 1000 = 1200 Multiply the corresponding voltage according to the formula by the power factor and by the root of three For example if I have a 220V

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AC single phase amps to kilowatts calculation The power P in kilowatts kW is equal to the power factor PF times the phase current I in amps A times the RMS voltage V in volts V divided by 1000 P kW = PF I A V V 1000 AC three phase amps to kilowatts calculation

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Oct 26 2009 At rated voltage the motor will draw rated current and deliver 2300 HP Since your measured current is less HP or KW kW=0.746 x HP the load is drawing less horsepower and exerting less torque on the shaft The motor is spinning at some speed faster than 1140 rpm or in other words the slip is less Zero slip = 1200 rpm.

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May 01 2012 Figure 1 shows the torque and power curves for a constant torque motor The torque is constant throughout the speed range of the spindle and the power linearly increases as the speed increases In this case the spindle motor produces about 1kW per thousand rpm 5kW at 5 000 rpm 10 kW at 10 000 rpm and so on .

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Motor Power HP/Kw =Torque N.m /9550 Input Speed of motor Power Kw Ratio Service factor The industrial gearbox is a precision machine relatively it s purpose is to decrease motor speed increased output torque The following situation is an example of the calculation Customer can refer to the below information

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Motor selection is often a complicated process that takes a lot of work with various vendors and time to sort and evaluate quotes Groschopp engineers share knowledge and expertise about the motor selection process Focusing on four broad motor types care is taken to meticulously evaluate the characteristics advantages and drawbacks of each.

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1 Select the motor horse power rating from the drop down box the available ratings ranges from 1/6 HP to 7.5 HP 1 Select the motor voltage rating from the drop down box the available values are 200 208 V 230 240 V 460 480 V 575 600 V 2 Select the motor horse power rating from the drop down box the available ratings ranges from 0

Get Price### Kilowatts kW to Amps Electrical Conversion Calculator

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 In Watt s Law power is measured in watts and voltage is measured in

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Mar 30 2017 2 Measure the current in each of the phase wires going to the motor and average them We measure 41 42 and 43 amps giving you an average of 42 amps 3 Calculate the kVa kVa = 0.00173 x volts x amps In our example kVa = 0.00173 x 230 x 42 kVa = 16.7 4 Calculate the Kw Kw = kVa x PF Power Factor x 0.01.

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For all other motor and non motor loads multiply the current by the voltage for watts Calculate total watts used by the largest motor and all remaining motor and non motor loads and multiply by 1000 for kilowatts Add 25 percent for reserve/surge capacity and size the generator accordingly.

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Calculate 3 Phase Apparent Power kVA 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.

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The construction and grinding operating principle of meat grinders sh ould have minimal effect to meat losses This paper presents the engineering calculation of the cutting process of meat grinder The experimental grinder consists of a frame screw gearbox electric motor V belt transmission casing lock and hopper.

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Electric motor horsepower this article explains how to calculate the horsepower of an electric motor if we know its wattage or current draw in amps We include wiring tables showing the circuit ampacity and wire sizes needed for electric motor circuits including for long wiring runs The article gives a simple formulat to convert electrical amps to horsepower and explains what data are

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Mar 04 2006 The tractive pull multiplied by the drive pulley radius will give you the load torque There is no short cut for deciding the load torque This cannot be calculated from motor side 5 Having decided the load torque you can decide the required power at motor shaft available motor size gear ratio and

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Grinding Wheel Speed Calculator All Norton grinding wheels are marked with a maximum operating speed in RPM Most machines and especially CNC machines use Surface Feet Per Minute SFPM as an input which requires operators to do the conversion.

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The ratio λ = a/Lp = a/√R.∆t is used to calculate the moment arm a λ =0.5 for hot rolling and 0.45 for cold rolling The torque is equal to the product of total rolling load and the effective moment arm Since there are two work rolls Torque Mt = 2P.a Consider two high roll mill as shown in the figure.

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kW to Cable Size Chart Look at the table of motor kW to cable size chart The chart is prepared based on the direct online start and star delta starting Note that using aluminium cable for low rating motor up to 1.5kW/2HP motor is not recommended Here 2R indicates Two Run cables The cable size chart is suitable for both single phase and

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For a 60 Hz system with four poles the calculations to determine RPM would be Hz x 60 x 2 number of poles = no load RPM 60 x 60 x 2 4 7 200 4 = 1 800 RPM The amount of slip varies slightly based on the motor s design A reasonable full load speed for a 60 Hz four pole motor would be 1 725 RPM.

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Jan 20 2005 Motor sizing made simple The proper sizing of three phase induction motors saves energy and reduces downtime A motor driving a load is an energy balancing act On one side is

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Induction motors are made from fractional horsepower ratings like 1/3 hp to thousands of horsepower For a decent 2 x 72 belt grinder we re looking for ideally 1 to 3 horsepower with a preference for 1.5 to 3 horsepower The motor needs to have enough power to perform efficient knife grinding and general metal shaping tasks.

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Click to view on Bing4 04May 06 2019 kw to amps calculator three phase kw to amps 3 phase motor electrical formula in hindi #kwtoamps #ampere #electrical #formula I am Aayush Sharma w

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Jul 20 2011 First we must convert from hp to kW using this formula 1 Hp = 0.746 kW After that use the formula kW to ampere For 3 phase power supply kW = I x V x 1.732 x pf For 1 phase power supply kW = I x V x pf Example 1 unit induction motor power rated 25 hp 200 VAC 3 phase 90 power factor calculated the full load ampere Calculation .

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Apr 11 2017 Power formula is KW/VxIxPfx1.732 Current drawn by motor and voltage applied to motor and power factor these values putting in formula you can get the power drawn by the motor A suitable energy analyzer like TES 3600 3P4W power analyzer manual can be searched through google can measure without calculation all these value easily.

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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

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Grinding wheel speeds should be maintalned with in a range of 5000 to 6500 feet per minute 1525 to 1980 meters per mm unless special conditions prevall or equipment and wheels designed for substantially higher wheel speeds are used.

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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 Calculator

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z c Number of inserts in the cut a e /d 1 Ratio of radial width of cut to cutting diameter Calculated Required Power F t Tangential cutting force lb N T Torque at the cutter Nm in lb ft lb Nmm Machining Power P s at the cutter HPc KW P m at the motor hp KW These calculations are based upon theoretical values and are only intended

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Jun 19 2015 The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution The following shows how the size or select the matching mill required to draw this power is calculated from known tables the old fashion way .

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With this tool you can convert from kW to kVA or kVA to kW easily quickly and free any electric power the calculation takes into account the power factor For greater ease we explain which formula is used for the conversion how to perform the calculation in 1 single step some examples and a table with the main conversions from kW to kVA.

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Calculate the value for load torque load inertia speed etc at the motor drive shaft of the mechanism Refer to page 3 for calculating the speed load torque and load inertia for various mechanisms Select a motor type from AC Motors Brushless DC Motors or Stepping Motors based on

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F r Radial force lb N R Resultant force lb N Horse Power Calculation P s Horsepower at the cutting tool hp KW P m Horsepower at the motor hp KW F f Torque ft lbs N m These calculations are based upon theoretical values and are only intended for planning purposes Actual results will vary.

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Figure 3 Relationships Between Power Current Power Factor and Motor Load Example Input Power Calculation An existing motor is identified as a 40 hp 1800 rpm unit with an open drip proof enclosure The motor is 12 years old and has not been rewound The electrician makes the following measurements Measured Values V ab = 467V I a = 36 amps

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= 0.027 kW Shaft Pump Power The shaft powerthe power required transferred from the motor to the shaft of the pumpdepends 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 CalculatorSI units

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General information about the selection and calculation of rolling bearings is provided in the SKF Rolling Bearings Catalogue This publication deals with questions arising from the use of rolling bearings in electric motors and generators Data from the SKF Rolling Bearings Catalogue is only repeated here

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Power of servo motor kw 1 Min cross feed mm 0.001 Cross feed drive mode Ball screw drive Cross feed moving control mode MPG handwheel or button C axis grinding spindle Power of the grinding spindle motor kw 11 Rotation speed of the grinding spindle min 1000 2400 Grinding wheel standard mm 400 50 127 Floor space

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Mar 01 2008 The percentage spindle power load for the 30 hp 22.5 kW grinding motor was typically 40–45 13.4 hp or 10 kW for the plated CBN wheel and 60–70 20 hp or 15 kW with the vitrified CBN wheel These values include the idle running power without grinding.

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Power as kW = E t/h dry solids A ball mill can safely operate at 90 of its motor rated power so choose a motor size like this Motor size as kW = Power 0.90 You will not get a circulating load prediction from a Bond calculation The assumption is that your secondary circuit is efficient whatever that might mean.

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