How does a compound wound DC motor work?
How does a compound wound DC motor work?
A compound DC motor connects the armature and fields windings in a shunt and a series combination to give it characteristics of both a shunt and a series DC motor. This motor is used when both a high starting torque and good speed regulation is needed.
What is a DC compound motor?
Definition. Compound DC motor is a compound of both series and shunt motor. It is consist of a Series field coil, which is connected in series with the armature field winding, and a shunt field coil winding, which is connected in parallel with the armature field winding.
What type of compound is motor?
The types of compound excited DC motor are Short Shunt Motor, Long Shunt Motor, Differential Compound, Cumulative Compound.
How is the speed of a compound wound motor controlled?
Yes, we can control speed of compound or shunt dc motor, by two approaches. One is field resistance approach and other is changing armature voltage. Field resistance approach is used for above base (rated) speed and voltage approach is used for controlling speed below base speed.
What are the applications of a DC compound motor?
Applications of DC compound motor
- Compound motors due to their ability to perform better on heavy load changes are used in elevators.
- Due to their high starting torque and better speed control for pressure variations, they are used in shears and punches.
Where is DC compound motor used?
Applications of DC compound motor Compound motors due to their ability to perform better on heavy load changes are used in elevators. Due to their high starting torque and better speed control for pressure variations, they are used in shears and punches.
How do you reverse a DC compound motor?
The rotation of a compound-wound motor can be reversed by changing the direction of the current in the field or the armature circuit, ( 5). Since the series field coils must also be reversed if the shunt field is reversed, it’s easier to reverse the current in the armature only.
What are the starters used in DC motors?
So, a DC motor is started by using a starter. There are various types of dc motor starters, such as 3 point starter, 4 point starter, no-load release coil starter, thyristor controller starter etc. The basic concept behind every DC motor starter is adding external resistance to the armature winding during starting.
What are the disadvantages of compound DC motor?
Disadvantages Just like other DC motors, a compound DC motor also requires frequent maintenance due to the aging of parts, resulting… They are not suitable for the hazardous environment due to spark occurring at carbon brushes. Compared to AC motors, the lifetime of compound DC motor is less due
What does motor, compound or compound wound mean?
A compound wound DC motor (also known as a DC compound motor) is a type of self-excited motor , and is made up of both series the field coils S 1 S 2 and shunt field coils F 1 F 2 connected to the armature winding as shown in the figure below.
What are the 4 types of DC motors?
Basically, four different types of DC motors are used in industrial applications: series wound, shunt wound, compound wound, and permanent magnet. Several factors must be considered when selecting a DC motor for a specific application.
What are the applications of DC compound motors?
In Elevators due to the ability of the compound motor to perform better on heavy load changes.