Question: Where Are Dc Motors Used?

Where is DC motor used?

Small DC motors are used in tools, toys, and appliances. The universal motor can operate on direct current but is a lightweight brushed motor used for portable power tools and appliances. Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills.

What are the commonly used DC motors?

There are 4 main types of DC motors:

  • Permanent Magnet DC Motors. The permanent magnet motor uses a permanent magnet to create field flux.
  • Series DC Motors. In a series DC motor, the field is wound with a few turns of a large wire carrying the full armature current.
  • Shunt DC Motors.
  • Compound DC Motors.

Why are DC motors still used?

DC motors are used in applications with an operating cycle that includes acceleration and deceleration. With less rotor inertia, it takes less time and power to accelerate or decelerate. This allows for quicker reversals, shorter cycle times and faster production.

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What is the principle of DC motor?

The basic working principle of the DC motor is that whenever a current carrying conductor places in the magnetic field, it experiences a mechanical force. Fleming’s left-hand rule and its magnitude decide the direction of this force.

What are the advantages of DC motor?

Good speed control DC motors offer highly controllable speed. By changing the armature or field voltage it’s possible to achieve wide speed variation and with this level of controllability, DC motors offer the precision required by a wide range of industry applications.

What are the 3 types of DC motors?

Types of DC Motors. There are 3 main types of DC motor that are available:- Series, Shunt and Compound. These terms relate to the type of connection of the field windings with respect to the armature circuit.

What household items use electric motors?

The electric washing machine, invented Alva J. Fisher in 1906, is a common home appliance that makes use of an electric motor. Other home appliances that use electric motors include clothes dryers, vacuum cleaners, fans, air conditioners, refrigerators and freezers.

Where can I find a DC motor at home?

How to Find Cheap DC Motors

  1. Find some old CD players or computer CD drives.
  2. Find some old computer cooling fans.
  3. Salvage larger industrial size DC motors from home items such as a clothes dryer, treadmill, and car starters.
  4. Go to goodwill or garage sales to find electronic toys.
  5. Find some old VCR players.

What are the two main parts of DC motor?

DC motors include two key components: a stator and an armature. The stator is the stationary part of a motor, while the armature rotates. In a DC motor, the stator provides a rotating magnetic field that drives the armature to rotate.

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What is the rpm of 12V DC motor?

18000 RPM, 12V DC Motor.

Why starter is used in DC motor?

Starters are used to protect DC motors from damage that can be caused by very high current and torque during startup. They do this by providing external resistance to the motor, which is connected in series to the motor’s armature winding and restricts the current to an acceptable level.

What are the disadvantages of DC motor?

Disadvantages of DC motors

  • High initial cost.
  • Increased operation and maintenance cost due to the presence of commutator and brush gear.
  • Cannot operate in explosive and hazard conditions due to sparking occur at brush (risk in commutation failure)

When would you use a DC motor?

DC motors are suitable for many applications – including conveyors, turntables and others for which adjustable speed and constant or low-speed torque are required. They also work well in dynamic braking and reversing applications, which are common in many industrial machines.

Why is the DC motor preferred over AC motor?

Because DC motors have higher starting torque compared to AC motors, they are preferred for applications like electrical traction. They are considered ideal for dealing with heavy loads for starting conditions in machines such as locomotives and cranes.

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