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A simple way to look at it is to assume you were spinning a wheel by hand and you were spinning it harder once per revolution. If you applied a load of some sort to the wheel it would slow over a period of time depending on the load. If you continued to manually try and keep the wheel spinning at the same rate, one revolution at a time this would effectively be adding torque to the wheel once per revolution. If you manually mimiced a 3-phase motor you would be manually spinning the wheel 3 times each revolution. This would basically apply three times the torque if each spin used the same force as the single spin did.

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One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false if true why?

True. A single-phase motor typically has a lower starting torque and may operate less efficiently than a three-phase motor, leading to higher heat generation during operation. Additionally, single-phase motors often have poorer thermal dissipation due to their design, making them more susceptible to overheating under load compared to the more efficient and balanced operation of a three-phase motor.


How does the 3-phase induction motor acts like 2-phase induction motor if a phase is disconnected from supply?

yes the motor will run but will draw more current and the torque will be not constant means not smooth due to unbalanced current


What motor gets more heated single phase or three phase?

Your question is a little like asking, 'How long is a piece of string?'! Do the two motors have the same power rating, or are they different?The rate at which energy is used by any machine is defined by its power rating. If the power ratings of two different machines are the same, then both machines use energy at the same rate. So if a single-phase motor has the same power rating as a three-phase motor, then they will both use exactly the same amount of energy over a given period of time.So, if a single-phase motor has a greater power rating than a three-phase motor, then the single-phase motor will the greater amount of energy in a given period. On the other hand, if a three-phase motor has a greater power rating than a single-phase motor, then the three-phase motor will the greater amount of energy in a given period.


What refers to the number of separate staggered power winding's in the motor or alternator?

The term you are referring to is "phase." In a motor or alternator, the number of separate staggered power windings is known as the phase. The most common types are single-phase and three-phase systems, with three-phase being more efficient and widely used in industrial applications due to its balanced power distribution. The phase configuration determines the motor's performance characteristics, such as torque output and efficiency.


What size motor do you need to run a compressor 2 stage 80 gallon tank i have a 3 phase on it and want to change motor?

You probably need a 5hp or 7hp motor. Look for HP rating o the 3 phase motor and select the same for single phase. 3 phase has same power but is more efficient at electricity use. Also consider a 3 phase converter. It allows a 3 phase motor to run on single phase service.

Related Questions

One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false if true why?

True. A single-phase motor typically has a lower starting torque and may operate less efficiently than a three-phase motor, leading to higher heat generation during operation. Additionally, single-phase motors often have poorer thermal dissipation due to their design, making them more susceptible to overheating under load compared to the more efficient and balanced operation of a three-phase motor.


How does the 3-phase induction motor acts like 2-phase induction motor if a phase is disconnected from supply?

yes the motor will run but will draw more current and the torque will be not constant means not smooth due to unbalanced current


What motor gets more heated single phase or three phase?

Your question is a little like asking, 'How long is a piece of string?'! Do the two motors have the same power rating, or are they different?The rate at which energy is used by any machine is defined by its power rating. If the power ratings of two different machines are the same, then both machines use energy at the same rate. So if a single-phase motor has the same power rating as a three-phase motor, then they will both use exactly the same amount of energy over a given period of time.So, if a single-phase motor has a greater power rating than a three-phase motor, then the single-phase motor will the greater amount of energy in a given period. On the other hand, if a three-phase motor has a greater power rating than a single-phase motor, then the three-phase motor will the greater amount of energy in a given period.


What s the role of capacitor in a single phase induction motor?

to start the motor and give more current to motor to run


What refers to the number of separate staggered power winding's in the motor or alternator?

The term you are referring to is "phase." In a motor or alternator, the number of separate staggered power windings is known as the phase. The most common types are single-phase and three-phase systems, with three-phase being more efficient and widely used in industrial applications due to its balanced power distribution. The phase configuration determines the motor's performance characteristics, such as torque output and efficiency.


How much more efficient is a 2 hp 240 v 3 phase motor compared to a 120 v single phase 2 hp motor?

A 240V 3-phase motor is generally more efficient compared to a 120V single-phase motor of the same horsepower rating because it provides smoother and more consistent power delivery. The 3-phase motor also tends to have lower operating temperatures and reduced energy losses, resulting in higher efficiency and better performance overall.


Does a single phase motor heat up more than a three phase motor?

No, the motor manufacturer maintains a specific temperature range for motors to operate in. It is usually 40 degrees C. The frame design and cooling fan on the motor shaft keeps the motor operating at a temperature within the manufactures specifications. This is regardless of whether the motor is single phase or three phase.


What size motor do you need to run a compressor 2 stage 80 gallon tank i have a 3 phase on it and want to change motor?

You probably need a 5hp or 7hp motor. Look for HP rating o the 3 phase motor and select the same for single phase. 3 phase has same power but is more efficient at electricity use. Also consider a 3 phase converter. It allows a 3 phase motor to run on single phase service.


Why three phase motor has the better performance when compare to single phase motor?

If you are asking what is the advantage of a motor wound for a Y or Delta configuration over a motor wound for a single phase configuration, then the advantage of the Y or Delta motor is more efficient operation. And in a motor, or in any power application, efficiency is all important.


What generator is suitable for a 2 HP single phase motor?

Any single-phase a.c. generator producing more than 2.5 HP or 2 kW - at the required voltage.


What is the meaning of U V W in motor?

In the context of electric motors, U, V, and W typically refer to the three phases of a three-phase motor system. Each letter represents a different phase of the electrical supply, with U, V, and W corresponding to the three distinct sinusoidal waveforms that drive the motor. This three-phase system enables smoother operation and more efficient power delivery compared to single-phase systems, resulting in better torque and performance.


Why is 3 phase more efficient?

There are a few reasons. In my opinion the most common is cost. In an industrial setting, three phase power is used to power motor loads. A three phase induction motor is more efficient than a single/split phase motor. They also have higher starting torque. A three phase load will also typically have a lower amp rating for the same size load as single phase. This saves money because you can use smaller wire.