A DC Machine is an electro-mechanical energy conversion device. There are two types of DC machines; one is the DC generator, and another one is known as DC motor. A DC generator converts mechanical power (ωT) into DC electrical power (EI), whereas, a DC motor converts d.c electrical power into mechanical power.
Why is a DC motor called a DC motor?
The rotor permanent magnets follow the stator rotating field due to magnetic pull, hence the rotation. The motor, thus, works like a synchronous motor. As the primary source of power for this motor is DC (through controller), it is sometimes called DC synchronous motor.
What machines use DC motors?
Major applications for DC motors are: elevators, steel mills, rolling mills, locomotives, and excavators. Like other rotating machines, DC motors result from the interaction of two magnets.
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.
How do you identify a DC motor?
Look for the stator core construction and rotor. If there is no commutator, then it is a AC motor. If there is a commutator and brushes, it may be either a DC motor or an AC commutator motor (Universal motor).
How do you build a DC motor?
What You Need:
- Insulated copper wire.
- Black permanent marker (such as a Sharpie)
- Small neodymium disc magnets.
- D-size battery.
- Battery holder (sticky tack or modeling clay can be used instead)
- Large rubber band (not needed if using a battery holder)
- 2 large paperclips.