Table of Contents
- 1 What is DC machine explain about its construction?
- 2 What is the basic construction of a DC motor?
- 3 What are the main parts of DC machine and what is the function of each of them?
- 4 What are the types of motors and explain about working of DC motor?
- 5 How does a DC motor work?
- 6 What is the difference between the construction of AC and DC generator?
What is DC machine explain about its construction?
The DC machine e.m.f can be defined as when the armature in the dc machine rotates, the voltage can be generated within the coils….EMF Equation of DC Machine.
| AC Motor | DC Motor |
|---|---|
| The input supply of ac motor is alternating current | The input supply of dc motor is direct current |
What is the basic construction of a DC motor?
A DC motor or machine consists of two windings namely field winding and armature winding. The field winding is stationary and the armature winding can rotate. The field winding produces a magnetic flux in the air gap between the armature and field windings and the armature is placed in this magnetic field.
Is the construction of DC motor and DC generator same?
The dc generators and dc motors have the same general construction. In fact, when the machine is being assembled, the workmen usually do not know whether it is a dc generator or motor. Any dc generator can be run as a dc motor and vice-versa.
What are the main parts of DC machines in construction?
It mainly consists of three main parts, i.e. magnetic field system, armature and commutator and brush gear. The other parts of a DC Generator are magnetic frame and yoke, pole core and pole shoes, field or exciting coils, armature core and windings, brushes, end housings, bearings and shafts.
What are the main parts of DC machine and what is the function of each of them?
There are two main parts, the stator and the rotor. The stator contains parts such as brushes, magnets and housing for the whole motor. The rotor contains the windings, the communicator and the output shaft. The two parts work together when voltage is applied to create a moving motor.
What are the types of motors and explain about working of DC motor?
Mainly there are two types of DC Motors. One is Separately Excited DC Motor and other is Self-excited DC Motor. The self-excited motors are further classified as Shunt wound or shunt motor, Series wound or series motor and Compound wound or compound motor. The dc motor converts electrical power into mechanical power.
What is the construction of AC motor?
The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field.
What is the parts of DC motor?
The basic parts for DC motors are as follows:
- Stator. The stator carries the field winding and Poles.
- Rotor. It carries the armature winding.
- Armature Winding.
- Field Winding.
- Commutator.
- Brushes.
- Poles.
- Slot/Teeth.
How does a DC motor work?
But how do DC motors work? In a DC motor, the stator provides a rotating magnetic field that drives the armature to rotate. A simple DC motor uses a stationary set of magnets in the stator, and a coil of wire with a current running through it to generate an electromagnetic field aligned with the centre of the coil.
What is the difference between the construction of AC and DC generator?
In a DC generator, the electrical current flows only in one direction. In an AC generator, the coil through which the current flows is fixed while the magnet moves. The construction is simple and costs are less. In a DC generator, the coil through which the current flows rotate in a fixed field.