230 volts motor - 3-phase : 25 amps/hp; 460 volts motor - 3-phase : 125 amps/hp; Always check nameplate information before designing protective devices, wiring and switch gear Single-Phase Motors - HP and Full-Load Currents A motor of a given rated horsepower is expected to deliver that quantity of mechanical power at the motor shaft

Get PriceThe basic ambient temperature rating point of most motors is 40°C A motor rated for 40°C is suitable for installation where the normal surrounding air temperature does not exceed 40°C (104°F) This is the starting point When the motor operates at full load, it has a certain temperature rise, which adds to the ambient temperature

Get PriceWind Turbine Calculator The wind turbine calculator is meant to be used to estimate energy production and wind turbine sizing This can be a great way to make better decisions about renewable energy The turbine calculator can be used for both offshore and onshore wind energy production estimations

Get PriceMar 01, 2006· The motor current line, or the line from the top of the vertical line, represents the current that is a component of KVA The angle of the line is related to the power factor When you think about a motor with a leading power factor, let's start with an uncorrected motor, and connect a small capacitor and use this method to complete the triangle

Get PriceGood science project does not stop with building a motor It is very important to measure different electrical and mechanical parameters of your motor and calculate unknown values using the following helpful formulas We will use the International System of Units (SI) This is modern metric system that is officially accepted in electrical engineering in [,]

Get PriceMotor Typ There are two types of electric motors; standard motors and gear motors Standard motors have shafts directly attached to the motor windings with shaft output speeds commonly between 1800-3000 RPM Gear motors have gear reduction transmissions built into them with shaft output speeds commonly between 400-550 RPM

Get PriceWind Turbine Calculator 1 Wind Turbine Calculator 2 Terms Wind Turbine Site data In order to understand the value of a wind turbine you need to know what the wind (and air) conditions are at the intended site This includes: Air Density Data This is the average air ,

Get PriceMotor Sizing Tools These Online Motor Sizing Tools are designed to make sizing a motor faster and easier These forms calculate the necessary Torque, Speed, Stopping Accuracy and System Inertia important when selecting a proper motor for the application

Get PriceSep 22, 2018· Specific Speed of Pump The specific speed “Nq” is a parameter derived from a dimensional analysis which allows a comparison of impellers of various pump sizes even when their operating similar Q -H range The specific speed can be used to classify the optimum impeller design Specific Speed of pump (Nq) is defined as the speed in RPM at which a geometrically similar impeller ,

Get Pricelar to the original idea, which is a vertical axis wind turbine with less than 1 kW of rated power From this database we can extract that from the 558 models of wind turbines listed, the 20% was of vertical axis type (VAWT from now on) and the other part was of horizontal axis type (HAWT)

Get PriceExample: The electric horsepower of a motor with 120 volts and 10 amps is: HP = (120 x 10) / 7457 Calculated out this gives an electric horsepower of 16092 (rounded to the nearest 10,000th) $100 Promotion Win $100 towards teaching supplies! We want to see your websites and blogs Enter Here Calculator Popups

Get PriceFor a 1-phase supply with power rating in kilowatt (kW): For a 1-phase supply with power rating in horsepower (hp): Note that the motor rated full load current is specified on the motor datasheet and stamped on the motor nameplate However, this calculator is useful when only the motor rating is available and an estimate of the current is required

Get PriceThe following phase converter wizard has been used by American Rotary Engineers to successfully size tens of thousands of phase converters For additional sizing assistance call 1-888-743-6832 *If your power rating is different than horsepower (HP), use the below calculations (or see video below) to find the proper HP rating to input into the Phase Converter [,]

Get PriceElectrical motor loads are calculated from power in kW and full rated load in kWFollowing is the formula how to calculate Motor loads Example : We have 1 unit Induction Motor with 30 horsepower (hp),running with 349 amps for amperage load and 460 volts 3 phase and power factor value is 075 and motor efficiency is 85%

Get Pricehead at point 3 was 40 feet, we are missing 29 feet We must now calculate the total head of the pump that will produce the value of 69 feet at point 3 at the flow rate required Using equation [5] and with the value of H X (69 feet), we can then calculate the value of ∆H P, the total head of the pump, which will satisfy the requirements

Get PriceEnter any 3 known values to calculate the 4th If you know any 3 values (Pulley sizes or RPM) and need to calculate the 4th, enter the 3 known values and hit Calculate to find the missing value For example, if your small pulley is 80mm diameter, and spins at 1000 RPM, and you need to find the second pulley size to spin it at 400 RPM, Enter Pulley1 80, Pulley 1 RPM 1000, Pulley 2 RPM 400, and ,

Get PriceUsing the relationships between motor constants discussed earlier, calculate the velocity constant of the motor from the torque constant obtained above By multiplying the velocity constant by the nominal motor voltage, obtain the theoretical no-load speed of the motor (zero torque and no-load speed) and plot it on the left vertical axis

Get Pricea motor constructed for environmentally sensitive applications To more uniformly denote industry standard gearmotor sealing, the Ingress Protection (IP) chart (Table 1) was created to assist designers with selecting the proper IP rating for an application The ingress rating of the motor enclosure is given a number rating in the form of IPXX

Get PriceThe basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage 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 open/closed ,

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Get PriceJul 22, 2010· CEMENT MILL FORMULAS MILL CRITICAL VELOCITY = 76 / (D)^1/2 MILL ACTUAL VELOCITY = 32 / (D)^1/2 , SDN 800 Ratio = 5435:1 RWN-500 Motor KW = 710 Aux GB SDA 250 5435: 1 Input RPM = 100 - 1000 Motor 30 KW ; 1500 RPM Motor GB GB Motor RWB-178 Pinion Kiln Axis Concord Alingnomatic Geared Coupling GG , 1 HP = rd W = Total vertical load on ,

Get PriceThe principle of the new generation of vertical mill was to direct higher pressure from the grinding element to the material bed using hydraulic systems From this approach the roller press, CKP (pre-grind vertical rollers) and Horomill ™ all developed Raw milling The gas-swept vertical mill quickly became the raw mill of choice

Get Priceinstall an induction motor with a 15-minute rating to power a pre-operation oil pump used to pre-lube a gas turbine unit because it would be unusual for this type of motor to be operated for more than 15 minutes at a time Other examples of intermittent duty applications include ,

Get PriceMultiply the result of the calculation by the head gasket mill distance to get the amount to be taken off the intake flange surface for proper manifold alignment In some motors (especially those with integral valley covers), additional compensation must be made for end seals, etc A positive example: RB (413, 440) face angle is 10° positive

Get PriceMay 14, 2018· Inputs that we need to calculate shaft diameter As we know Torsional equation (Read more about the torsional equation here) Where τ = Torsional stress induced at the outer surface of the shaft (Maximum Shear stress) r = Radius of the shaft T = Twisting Moment or Torque J = Polar moment of inertia C = Modulus of rigidity for the shaft material

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Get PriceThe Speeds and Feeds Calculator may be employed for calculations of estimated speeds and feeds (RPM and IPM) values on the basis of the parameters you ,

Get PriceMilling Time Calculator This will compute the time an end mill to take to remove material based on feedrate,area, depth, cutter diameter, and depth increment This is used for pocket milling and face milling Use the other calculators on this web site to calculate the feed rate The reason for the 65 default step over is that this is ,

Get PriceJul 15, 2019· In choosing a motor for these conditions, consider the highest continuous load point, which typically occurs at the highest speed Step 2: Get a handle on horsepower The rule of thumb for motor horsepower is: Select only what you need, and avoid the temptation to oversize or undersize Calculate the required horsepower from this formula:

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