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Battery life will be high when the load current is less and vice versa. The calculation to find out the capacity of battery can be mathematically derived from the below formula When it comes to online calculation, this battery life calculator can assist you to determine the time that how long the battery charge will last. For example, a circuit connected with 800 mAh current rating and it is
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Get Price50 HP x 746 Watts/ HP = 37,300 Watts or converting to kiloWatts (kW) = 37.3 kW A motor of this size probably typically has an efficiency of 90% to 93% (0.90 to
Get PriceA 15-amp current through 100 feet of these cables would result in voltage drops of 1.5, 2.4 and 3.75 volts respectively. Power. The voltage drop multiplied by the current gives the power in watts. The three cable runs of 100 feet, carrying 15 amps, will have power drops of 22.5, 36 and 56.25 watts for the 10, 12 and 14 gauge cables respectively. This power heats up the cable, and the voltage
Get PriceTypical slips are 0-5%. The higher the mechanical loading, the higher the slip. 7000 RPM is not possible without either a variable frequency drive (VFD) or a gearbox. Power. For simplicity, one can assume that the mechanical power out is about 90% of the electrical power in. 2 kW motor can therefore draw ~2.2 kW of real power. With 3-phase 220V
Get PriceRLA - "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; Related Mobile Apps from The Engineering ToolBox . Electric Motors App - free apps
Get PriceHow to convert Amp to Hp AC 3 phases in only 1 step: Step 1: Multiply the AC voltage by the motor efficiency, the power factor, the current and the square root of 3. For example, if the motor is 220 V ac, it has an efficiency of 80%, the power factor is 0.9 and a correinte of 54.4A, you must Multiply 220 V ac by 0.8 (80%) by 0.9 by √3 (square root of 3) and by 54.4A to obtain 274.35
Get PriceCalculate the electricity usage of a laptop or notebook computer. Electricity usage of a Laptop, Notebook or Netbook. Laptops, notebooks or netbooks generally use less power than desktop computers, because they are designed to run on a battery and to be more power efficient.
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Get Price® HP Series™ cone crushers feature a unique combination of crusher speed, throw, crushing forces and cavity design. This combination is renowned for providing higher capacity and superior end-product quality in all secondary, tertiary and quaternary applications. Field proven for years, ® HP Series™ cone crushers are built to perform.
Get PriceFor example, if there are three 15-amp motors in the circuit, the ampacity rating of the wire feeding the circuit must exceed 15 + 15 + (15 * 1.25) = 48.75 Amps. There are exceptions to this requirement, which would include interlocks of two or more motors to prevent them from running at the same time. Typically, the nominal system voltage for a motor will be above the nameplate voltage to
Get PriceVoltage - Enter the voltage at the source of the circuit. Single-phase voltages are usually 115V or 120V, while three-phase voltages are typically 208V, 230V or 480V. Amperes - Enter the maximum current in amps that will flow through the circuit. For motors, it is recommended to multiply the nameplate FLA by 1.25 for wire sizing.
Get PriceELECTRIC MOTOR WATTAGE GUIDE: Electrical motors present special electrical startup considerations. They can require up to three times their rated running wattage to start. Motor nameplates generally will show starting watts, some as high as nine times the running wattage.
Get PriceAlso, air conditioners are a very difficult load because of the high start-up surge. Use the Locked Rotor Amps to determine the start up surge requirement. F.Y.I. .. (conversion formula: Watts ÷ 120 volts = Amps .. Amps x 120 volts = Watts) Common Appliances: Estimated Watts: Suggested Inverters: Coffee Maker 600-1200 Cobra CPI-1590: Keurig 1500 (max) 200-400 (continuous) Samlex SSW
Get Price11.11.2019· Even if you manage to find a high amp alternator that's capable of putting out a massive 300A while still somehow fitting in your engine compartment, that extra amperage will only be tapped if and when your equipment actually needs it. You can rest easy that the only downside to an alternator that's too big is that it's a waste of money, and it won't damage your electrical system.
Get PriceMotorhome 5th Wheel and Camp Trailer Roof Top Air Conditioners: Watts Required for start up: Average wattage once running: 7000 btu RV air conditioner
Get PriceAmperes (amps) and horsepower (HP) are the electric motor's rating methods. Amps - amount of the rate of flow of electricity, whereas Horsepower - measurement of work divided by time. Formula: HP = (V * a * e) / 746 Where, h = Horsepower (HP) v = Voltage a = Full Load Amps e = Efficiency. Related Calculators: Acceleration Unit Converter ; Calorific Value Conversion ;
Get PriceBy my calculations, a 1/4 HP disposal (which is really all you need) will draw about 1.5 Amps of current. .25 HP = 186 Watts 186 Watts / 120 V = 1.5 Amps. I calculated the max power draw of all the kitchen appliances plus the new disposal, and it was well under the 20 Amp max of the circuit. It seems silly to dedicate a whole circuit to an appliance that shouldn't draw over 2 Amps. A double
Get Price500: Edge Trimmer: 500: Chain Saw: 1200: Device Running Watts; Refrigerator / Freezer: 700* Lamp: 100: Sump Pump ½ HP: 800-1050* Radio / Television: 50-500: Device Running Watts; Battery Charger : 500: Belt Sander - 3" 1000: Air Compressor - ¼ HP: 975* Air Compressor - 1 HP: 1600* Paint Sprayer - Airless: 600* Table Saw - 10" 1800* Quartz Halogen Work Light: 1000: Reciprocating Saw: 960
Get PriceAn 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 PF a = 0.75 V bc = 473V I b = 38 amps PF b = 0.78 V ca = 469V I a = 37 amps PF c = 0.76 V = (467+473+469)/3
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