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The resistance depends on how big the motor is. A small motor (less then 2-3 kW) , have greater resistance than a bigger one. Typically small motors have from 10 - 20 ohms to a few ohm. A 13 kWatt motor have typically 1-2 Ohm. A big 400 KWatt's motor have typically 10 milli ohms between the phases.

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What is the horsepower of a 3 phase 480 volt 1.7 amp motor?

This is the formula for horsepower. HP = I x E x 1.73 x %eff x pf./746. The efficiency of the motor will have to be guessed at along with the power factor. A motor has a lagging power factor so will use a value of .85. For the efficiency of the motor lets say 90%. The value of 746 is the amount of watts in one horsepower. Now applying the values we end up with a HP value. HP = 1.7 x 480 x 1.73 x 90 x .85/746 = 1080/746 = 1.45 horsepower.


What size inverter in watts is needed to run a 1.5 horsepower motor?

To determine the size of the inverter needed to run a 1.5 horsepower motor, we first need to convert horsepower to watts. 1 horsepower is equal to approximately 746 watts, so a 1.5 horsepower motor would require around 1119 watts. However, it's important to consider the starting surge or inrush current of the motor, which can be several times higher than its running wattage. To be safe, you would likely need an inverter with a continuous output rating of at least 1500-2000 watts to reliably power a 1.5 horsepower motor.


What is the approximate horsepower rating of a 240V motor that draws 15.5A of current?

A motor that draws 14 amps on 240 volts is probably a two horsepower motor, but it could be three depending on the efficiency.Watts = amps x volts. There are 746 watts in 1 horsepower.CommentIn North America, horsepower is always used to describe the output power of a motor. You can only find the input power by multiplying the supply voltage by the load current. You will, unfortunately, then need to know the efficiency of the machine to determine its output power in horsepower.


How many watts in a half horsepower motor?

1 Horsepower is about 746 watts. So 1/2 HP = 373 watts. The actual power drawn from the source is probably more than that due to reactive power, winding resistance and friction, to name a few factors.


How do you figure out Run Load Amps if it is not given?

To calculate the Run Load Amps (RLA) if it is not given, you can use the formula: RLA = Horsepower x 746 / Efficiency x Voltage x Power Factor x √3 x FLA, where FLA is the Full Load Amps. You need to know the motor's horsepower, efficiency, voltage, and power factor to determine the RLA. If these values are not known, you may need to contact the manufacturer or consult the motor's specifications.