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motor rating calculation in cement mill

We cannot get the actual full load ampere because it depend on efficiency ofmotor.If electricmotorshave a higher efficiencyrating,it will draw fewer amps, for example a 10 HPmotorwith a 60% efficiencyratingwill draw about 65 amps at 230 VAC compared to about 45 amps for amotorwith a 80%rating

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  • formulas kiln slideshare

    formulas kiln slideshare

    Jul 22, 2010·CEMENT MILLFORMULASMILLCRITICALVELOCITY= 76 / (D)^1/2MILLACTUALVELOCITY= 32 / (D)^1/2 16. D Theta’ Mill charging: Theta H H = 0.16DMILLCROSS SECTION Dynamic Angle of Repose = 35 degree 20 minutes with Horizontal (Theta) OR Dynamic Angle of Repose = 54 degree 40 minutes with Vertical (Theta)’ 17

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  • ball mill design power calculation

    ball mill design power calculation

    The basic parameters used in ballmilldesign(power calculations), rodmillor any tumblingmillsizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desiredmilltonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum ‘chunk size’, product size as P80 and maximum and finally the type of circuit …

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  • motor starting calculation (ms excel spreadsheet) eep

    motor starting calculation (ms excel spreadsheet) eep

    May 17, 2020·Motorstartingcalculation(MS Excel Spreadsheet) This is very helpful especially for quick checks as follows: ... RunningMotor/s: The details of the second largest runningmotor/s (ormotorofratingsame as the startingmotor) connected to the switchboard shall be entered. This model can also be utilized by the user to check the voltage drop

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  • calculation of floor load rating required for heavy machine

    calculation of floor load rating required for heavy machine

    Calculationof Floor LoadRatingrequired for heavy machine : View All: Need to cal how much floor load needed to place a 14 tons rollingmill. Machine Foot print is 8 x 12 ft. Factory floor load is 20 kN/m2. Factory space is 10 x 10 m2. 11 years ago - 10 months left to answer. - 1 response - …

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  • pump power calculation formula specific speed of a

    pump power calculation formula specific speed of a

    Sep 22, 2018· P = Power input in kW to motor (related to low efficiency pump) T = Running hours per year.Pump efficiency calculationexample = 75% and 65% respectively. P = Power input = 40 kW. T = 3000 hours per year. N = 18461 Units (KWH) So for samerating pump efficiencywill increase by 10% then power saving will be 18461 KWH per year

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  • code calculations ec m

    code calculations ec m

    Step 1: Add up all the loads, rounding up to the nearest whole number. 40A + 52A + 65A + 23A + 40A = 220A. Step 2: Select the largest motor load, and add 25% of it to the total. 25% of 65A = 16.25A. Solution: The total load = 220A + 16.25A = 236.25A. Round up to get 237A

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  • industrial drives and applications vtu notespdf sw

    industrial drives and applications vtu notespdf sw

    Self-controlled synchronousmotordrive employing load commutated thruster inverter. Link: Unit 7 Notes —————————— UNIT – 8 INDUSTRIAL DRIVES: Rollingmilldrives,cement milldrives, papermilldries and textilemilldrives. Link: Unit 8 Notes

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  • howcalculateampere for electricmotor electrical

    howcalculateampere for electricmotor electrical

    1 unit induction motor power rated 25 hp,200 VAC,3 phase,90 % power factor,calculated the full load ampere. Calculation :-kW = 25 hp x 0.746. kW = 18.65. kW = I x V x 1.732 x pf. I = kW / V x 1.732 x pf. I = 18.65 / ( 200 x 1.732 x 0.9 ) I = (18.65 / 311.76) x 1000. I …

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  • code calculations ec m

    code calculations ec m

    In this installment, we'll take a look at how tocalculate motorand noncoincident loads.Motorloads (Secs. 430-24, 430-25, and 430-26) When calculatingmotorloads, you need to know how to convert amotor'scurrentrating(given in amps) to a VArating. To do this, multiply themotor'snameplate amperage by the supply voltage

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  • concrete calculator cement sand gravel water apps on

    concrete calculator cement sand gravel water apps on

    The application (available in english and russian) calculates the exact proportions, volume and weight ofcement, water, sand and gravel for makingconcretewith desired characteristics *: - compressive firmness - classes B7,5..B30 or mark M100..M400 - Mobility (density) of theconcretemix - P1..P5 - Frost-resistance - F50..F1000 - Watertightness - W2..W20 * classes and …

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  • single phase capacitor sizing electrical engineering centre

    single phase capacitor sizing electrical engineering centre

    Firstly try to see the ampsratingon name plate ofmotorand do thiscalculation. If amps is 8 amps By formula shown above for starting cap. C = 8 x 1000000 / 2 * 3.14* 60*220 = 8000000/82896 = 86.5 mfd

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  • electricalmotorshaft power engineering toolbox

    electricalmotorshaft power engineering toolbox

    Power is in general rated in watt (W) orhorsepower(hp).The old imperial unithorsepoweris equal to 746 watts (0.745 kW) or 33000 lb ft per minute (or 550 lb ft per second).. The unit of electric power - 1 watt - is equal to the power produced by an electrical current of 1 amp at a potential difference of 1 volt. 1 watt = 1 / 746 hp; 1 hp = 746 watts = 0.76 kW

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  • pump powercalculator

    pump powercalculator

    Hydraulic Pump Power. The ideal hydraulic power to drive a pump depends on. the mass flow rate the; liquid density; the differential height - either it is the static lift from one height to an other or the total head loss component of the system - and can be calculated like. P h(kW) = q ρ g h / (3.6 10 6) = q p / (3.6 10 6) (1) where

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  • generatorcalculator generator sizing and power

    generatorcalculator generator sizing and power

    Note: this sizing advice relates to portable generators – if you are after generator sizing advice for a large stationary generator, then you may need to engage an electrician.. To begin, you need to know the wattage draw of your appliance(s) and make sure your generator produces enough power to handle that draw – lets’ do it;. Step 1: Getting the power information for your appliances

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  • how tocalculatefloor load capacity hunker

    how tocalculatefloor load capacity hunker

    The dead load on a floor is determined by the materials used in the floor's construction. A typical wood-frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot; if there's wall-board covered ceiling suspended from the underside of that floor, the dead load increases to about 10 pounds per square foot

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  • temperature monitoring is key to motorreliability

    temperature monitoring is key to motorreliability

    Jul 02, 2004· In the most common speedratings, the NEMA designation of mediummotorsincludesratingsof 1/2–500 hp for 2- and 4-pole machines, and up to 350 hp for 6-pole machines. Temperature rise limits for largemotors—i.e., those above mediummotor ratings—differ based on the service factor (SF)

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  • generator sizing calculation guide grainger knowhow

    generator sizing calculation guide grainger knowhow

    The next item to look at for generator sizing is the volt-amperes (wattage) requirement of electricmotorto be operated (e.g., furnace blowermotor1/3 HP), remembering that the starting requires 2 to 3* times the nameplate or running (rated) watts. Thus, if running watts of themotoris 600, multiply the number by 3 to determine approximate max

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