An electric motor is a machine that converts electric energy to mechanical energy. Used in practically every field ranging from homes to industries, they are used to produce linear or rotary force. Leading motor distributors in India like Crompton Greaves and CSR deal in almost every type of electric motor that suits your needs. But what matters is knowing which motor to apply in which field. So here's a brief on the types and application of electric motors:
1. Series motors
The series wound motor has a single voltage supply to the motor and the field winding is connected in a series with the rotor winding. It works well for both fixed and variable speed electric drives as well as high and low power. Used in cheap toys, power tools, sewing machines, and automotive applications, series motors are economical to manufacture and work at variable speeds.
2. Shunt wood motors
The shunt wound motor also has only one voltage supply to the motor but unlike the series motor, the field winding is connected in parallel with the rotor winding. Since these work at an almost constant speed they are used mainly in fans and windscreen wipers.
3. Separately excited motors
The separately excited motor has independent voltage supplies to the field and rotor windings that allow more control over the motor performance. The voltage is used to control the speed and torque of the motor and is applied in trains and automotive traction.
4. Induction motors
Induction motors are robust and reliable and do no need commutators making them suitable for high power applications. They are available in a range of up to 10 Megawatts and are used in heavy machinery and tools.
5. Single phased induction motors
These create a rotating field with the help of an auxiliary stator, which creates a Magneto Motive Force.
These are broadly classified into 2 categories
6. Synchronous Reluctance Motors
These run on alternating current and uses distributed stator windings. They work at various speeds and have good speed control, hence required in metering pumps and industrial process equipment.
7. Hysteresis motors
The hysteresis motor comprises a wound stator that produces a rotating field and a rotor in the form of a cylindrical shell with crossbars. It starts as an induction motor and continues as a synchronous motor, with a smooth rotor that is quiet and does not produce too much sound or vibration. Since its efficiency is low it does not produce much power and is usually used in clocks and tape recorders.
8. Permanent magnet motors
These work up to a range of 5 Kilowatts and can be applied in low power as well as high power areas. Which is why they can be used in low power wheel chairs as well as high power electric bikes. However, as the magnet size increases so does the price, which makes it less economical.
Now that you have learnt about which type of motor is used where, we hope to have made your purchase a tad bit easier
1. Series motors
The series wound motor has a single voltage supply to the motor and the field winding is connected in a series with the rotor winding. It works well for both fixed and variable speed electric drives as well as high and low power. Used in cheap toys, power tools, sewing machines, and automotive applications, series motors are economical to manufacture and work at variable speeds.
2. Shunt wood motors
The shunt wound motor also has only one voltage supply to the motor but unlike the series motor, the field winding is connected in parallel with the rotor winding. Since these work at an almost constant speed they are used mainly in fans and windscreen wipers.
3. Separately excited motors
The separately excited motor has independent voltage supplies to the field and rotor windings that allow more control over the motor performance. The voltage is used to control the speed and torque of the motor and is applied in trains and automotive traction.
4. Induction motors
Induction motors are robust and reliable and do no need commutators making them suitable for high power applications. They are available in a range of up to 10 Megawatts and are used in heavy machinery and tools.
5. Single phased induction motors
These create a rotating field with the help of an auxiliary stator, which creates a Magneto Motive Force.
These are broadly classified into 2 categories
- Capacitor-run motors which are used in washing machines and shower pumps
- Shaded pole motors being not so efficient are generally used in small household appliances and light industrial machines.
6. Synchronous Reluctance Motors
These run on alternating current and uses distributed stator windings. They work at various speeds and have good speed control, hence required in metering pumps and industrial process equipment.
7. Hysteresis motors
The hysteresis motor comprises a wound stator that produces a rotating field and a rotor in the form of a cylindrical shell with crossbars. It starts as an induction motor and continues as a synchronous motor, with a smooth rotor that is quiet and does not produce too much sound or vibration. Since its efficiency is low it does not produce much power and is usually used in clocks and tape recorders.
8. Permanent magnet motors
These work up to a range of 5 Kilowatts and can be applied in low power as well as high power areas. Which is why they can be used in low power wheel chairs as well as high power electric bikes. However, as the magnet size increases so does the price, which makes it less economical.
Now that you have learnt about which type of motor is used where, we hope to have made your purchase a tad bit easier
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