what is principle of dc shunt motor?

Question

it is a question of electrical engineering

Answer 1

Any type of motor is a piece of equipment that translates electrical energy into usable rotational force. A DC motor operates on direct current (whereas an AC motor operates on an alternating current supply).

A DC Shunt motor is one where the main field is separately excited (i.e. has another source of volts and amps not associated with the supply for the rotating armature).

To develop torque (another name for useful rotation-related output force), there must be an interaction of magnetic fields. Since one part of the machine moves (rotates) and one doesn't, they're identified as rotor and stator respectively.

In the stator, there is a main field winding wrapped around a stationary pole. Passing DC current through the winding creates a magnetic field at right angles to the winding, and introduces a force vector that is ALSO at right angles to the winding.

The rotating field winding (located on the rotor) is arranged at right angles to the magnetic field generated by the poles. When turned through the field, a current is induced. However, it is a DC current! This means it must be mechanically switched (via the commutator/brush contact) to keep changing the rotor polarity and thereby allowing the rotor to turn.

By holding the stationary field strength (i.e. main field current) constant and varying the rotor applied voltage, we have what is known as CONSTANT TORQUE range (constant volts-per-hertz). We can vary the speed, without losing torque.

By holding the rotor field strength constant (i.e. constant rotor voltage and current) and varying the main field current, we can achieve a CONSTANT POWER range (also known as field-weakening). We can vary the speed, but torque output is affected.

Answer 2

Dc Shunt Motor

Answer 3

An electric motor converts electrical energy into kinetic energy.
A D.C.shunt motor runs on D.C. and has the same principle.
Its called so because the field windings are parallel to the armature windings (that is electrically shunted)

I could only answer this much from your question.
Please clarify it a bit more.

Answer 4

Any DC machine is based on the principle of Faraday's Law of Electromagnetic Induction that when a current carrying conductor is kept in a varying magnetic field it experiences a mechanical force..this tend to induce emf and further allows flow of current induced in circuit if it is closed.. This is how by separately exciting stator and rotor.

https://www.electrikals.com/products/r/motors?cid=641&page=1&pagesize=15

Answer 5

DC shunt Motor :
It simply
"convert electrical power into mechanical power"
by using dc current.

Answer 6

lol! when a current carrying conductor is placed in magnetic field it experiences a "mechanical force"

Answer 7

In a library.