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In theory one horse power equals 746 watts. They are both basic measures of power.
A 1 HP motor however draws more than 746 watts because to give a mechanical output of 1 HP/746 watts at the shaft, the motor has to draw more than 746 watts of electric power to cover losses in caused by resistance in the windings and the iron core of the motor, and friction in the bearings.
A typical efficiency for a motor would be 90% so that the electric power used would be 829 watts.
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For clarification in all electrical calculations regarding horsepower, 746 watts per horsepower is used.
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JudyIt varies with the exact motor you choose, as different motors will have different efficiency ratings.
The accepted conversion between watts and horsepower is 1hp = 746 watts, but no motor is 100% efficient, so you will not find a 1hp motor that actually draws only 746 watts.
In general, the majority of 1 HP electric motors out there will draw between 1,000 and 1,500 watts.
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How many watts in a 2 hp?
A 2 horsepower (hp) motor is equivalent to approximately 1492 watts.
How much horsepower does 746 watts equal?
746 watts is equal to 1 horsepower. Horsepower is a unit of power that measures the rate at which work is done, and 1 horsepower is equivalent to 746 watts.
How much power is required by a 1 horsepower motor?
1 horsepower is the output power - the power produced. The power it uses is more, because no engine is 100% efficient. How much more, depends on the type of engine; an explosion engine (such as one that uses gasoline) is basically a heat engine, with an efficiency of perhaps 1/3; that means that about three times the output power is actually consumed. For an electrical motor, the required electricity will be only a little more than 1 horsepower (about 742 watts running current, more when the motor is getting started).
Is horsepower more than watts?
No, one horsepower is equal to 746 watts. Horsepower is a unit of power commonly used in the United States, while watts are used in the International System of Units (SI).
What is the formula to work out horsepower?
Horsepower (hp) can be calculated using the formula: [ \text{Horsepower} = \frac{\text{Torque (lb-ft)} \times \text{RPM}}{5252} ] Another commonly used formula to calculate horsepower is: [ \text{Horsepower} = \frac{\text{Torque (lb-ft)} \times \text{RPM}}{63000} ]
