Hello, readers welcome to the new post. In this post, we will learn Difference Between Single Phase and Three Phase Induction Motor. The induction motor is very commonly used in industrial and our homes to perform different functions. There are two main types of induction motor First, one is a single-phase induction motor and the second one is a three-phase induction motor.
Both motors are used in different operations to perform numerous functions. Here we will discuss different parameters to know about their basic difference. So let get started.
Difference Between Single Phase and Three Phase Induction Motor
What is Single Phase Induction Motor
- A Single-ø Induction Motor comprises a single-ø winding that wound on the stating portion of motor and its rotor consists of a cage winding.
- A revolving magnetic field is created when we provided single phase input at the stating part of the induction motor.
- In our society mostly single-ø techniques are used instead of 3 phases.
- As, the single-ø system is less expensive than the 3-phase system, and our home appliances are also designed to work on the single-phase system which also enhances its importance.
- The single-ø induction motor is easy to design, less costly, dependable, and can be easily repaired.
- As it has many benefits, so it’s used in fans, washing machines, juicer machines, and some other types of machinery.
Types of single-Phase Induction Motors
- There are many types of single-phase induction motor, these types are classified according to the starting processes of a single-phase induction motor. These main types of induction motor are described below.
- Split-phase Induction motor
- Shaded-pole Induction motor
- Capacitor-start capacitor-run Induction Motor
- Permanent-split capacitor Induction Motor
- Capacitor-start Induction Motor
What is Three Phase Induction Motor
- 3-phase induction motor is a machine which is constructed to work on the 3-phase supply.
- The three-ø induction motor is also known as the asynchronous. Its working is depending on the principle of the revolving magnetic field.
- As we discussed in a single-phase induction motor article that it is not self-starting, but three-phase motors are self-starting device there is no need of any separate starter for this motor
- There are two main types of this motor which are with respect to rotor construction first one is the wound rotor motor and the second is squirrel cage rotor.
- The construction of this motor is very modest, rugged, less cost and its repairing is very easy, and this motor is available in many power ratings.
- This motor works at a constant speed in case of no load or full load conditions
Advantages of Induction Motor
- These motors are vigorous and modest in structure with very limited moving portions.
- These motors proficiently work in a rough and strict atmosphere like in oceangoing containers.
- The repairing price of the three-ø induction motor is fewer and dissimilar that of direct current or synchronous motor, the induction motor does not have the brush, and slip rings.
- It can operate in an inherent atmosphere as they do not have brushes which can source the sparking and can be hazardous to such an environment.
- Three-ø induction motor does not need any extra starting device or arrangement as they can produce starting torque when 3-ø alternating voltage is provided.
- The ultimate results of a 3-ø motor are approximately (1.5) times the rating of a 1-ø motor of the identical ratings