Table of Contents
- 1 What is a suitable material for an armature?
- 2 Which material is used in armature core of alternator?
- 3 Which material is not used while making armature?
- 4 Why is armature core laminated?
- 5 What is the importance of armature?
- 6 What is the importance of armature in sculpture?
- 7 What are the major components of an armature?
- 8 What kind of materials are used to make magnetic cores?
What is a suitable material for an armature?
An armature can be made from any material that is damp-resistant and rigid enough to hold such plastic materials as moist clay and plaster, which are applied to and shaped around it. …
Which material is used in armature winding?
Generally, the winding is made up of copper. But in some cases, it is made up of aluminum to reduce the cost of the machine. According to the design of the armature winding, it can be lap wound or wave wound. In a lap winding arrangement, the number of current paths is equal to the number of poles and brushes.
Which material is used in armature core of alternator?
This is why armature cores are made up of many thin pieces of iron, rather than a large, solid piece. These individual, thin pieces have a higher resistance than one solid piece, and therefore, produce less eddy currents and experience lower eddy current loss.
What material are stators made of?
The stator frame consists of laminations of silicon steel, usually with a thickness of about 0.5 millimetre. Lamination is necessary since a voltage is induced along the axial length of the steel as well as in the stator conductors.
Which material is not used while making armature?
That’s why aluminum is not used for making the armature of an electric bell.
Why is an armature used?
The main role of an armature is multi purposed. The primary role is to transmit current across the field, therefore generating shaft torque within an active machine otherwise strength in a linear machine. The second role of an armature is to produce an EMF (electromotive force).
Why is armature core laminated?
To minimize the eddy current loss we increases the resistance in the path of eddy current by laminating it. Eddy current losses are directly proportional to area of armature or more precisely the path of motion. That is why armature of DC machines (either motor or generator) is laminated.
Which material is used for construction of stator core?
The stator core is built up of segments of electrical sheet steel, usually 2–3% silicon, 0.35 mm thick, cold rolled and non-oriented. To minimise weight, the core is worked at the highest flux density consistent with reasonable losses.
What is the importance of armature?
What is the armature core?
Armature Core. The central mass of iron on which the insulated wire, to be rotated in the field of an electric current generator or motor, is wound.
What is the importance of armature in sculpture?
This framework provides structure and stability, especially when a plastic material such as wax, newspaper or clay is being used as the medium. When sculpting the human figure, the armature is analogous to the major skeleton and has essentially the same purpose: to hold the body erect.
What kind of steel is used in an armature core?
The laminated silicon steel is used for the armature core to reduce the eddy current and hysteresis loss. Generally, the armature core is a hollow cylindrical shape. And the shaft is placed inside the armature core. The core consists of the number of slots.
What are the major components of an armature?
For harmonic distortion, the length, speed, and bearing points are selected An armature can be designed with a number of major components namely the core, the winding, the shaft, and the commutator. The armature rotation can be caused by the communication of two magnetic fields.
What kind of winding is an armature made out of?
The armature winding is insulated to avoid direct contact of the coil with the core. Generally, the winding is made up of copper. But in some cases, it is made up of aluminum to reduce the cost of the machine. According to the design of the armature winding, it can be lap wound or wave wound.
What kind of materials are used to make magnetic cores?
They are made of ferromagnetic metals or compounds. There are a variety of materials that can be used to manufacture these magnetic cores, the most common ones mentioned in this blog post. Solid iron cores serve as an excellent pathway to provide magnetic flux and retain high magnetic fields without saturating the iron.