A Direct Current (DC) machine is an energy conversion device. It converts electrical energy to mechanical while working as a motor and the mechanical energy to electrical energy while working as the generator.
When energized with DC, electro magnetize the poles and provide the working flux. All coils are connected in series such that as current flows, alternate N and S poles are produced. DC Machine - Construction
When energized with DC, electro magnetize the poles and provide the working flux. All coils are connected in series such that as current flows, alternate N and S poles are produced. DC …
Construction Based on the working principle DC motor & generator, requirement for the both machines are magnetic fields, conductor & mechanical movement. So construction wise both …
When a dc voltage is applied to the field windings of a dc generator, current flows through the windings and sets up a - - steady magnetic field. This is called FIELD EXCITATION. This …
There are two types of DC machines; one is 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...
Figures 2 through 5 illustrate the general construction of DC machines and the commutator. Figure 2: Diagram of a DC machine. Figure 3: Cross-section of a DC machine showing the commutator. Figure 4: A single-coil elementary commutator system.
When a dc voltage is applied to the field windings of a dc generator, current flows through the windings and sets up a - - steady magnetic field. This is called FIELD EXCITATION. This excitation voltage can be produced by the generator itself or it can be supplied by an outside source, such as a battery. DC Machines
Carbon for small DC machine. For large DC machine, electrographite is used to make Figure 3.1.1 Construction of DC Motor [Source: "Basic Electrical and Electronics Engineering" by …
Figures 2 through 5 illustrate the general construction of DC machines and the commutator. Figure 2: Diagram of a DC machine. Figure 3: Cross-section of a DC machine showing the …
Construction of dc Machines: The rotor in a dc machine is called an armature. The armature has cylindrical steel core that is composed of a stack of slotted laminations. Slots in laminations …
There are two types of DC machines; one is 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...
Construction Based on the working principle DC motor & generator, requirement for the both machines are magnetic fields, conductor & mechanical movement. So construction wise both motor & generator are same. Depends upon the types of input (electrical or mechanical)
What is a DC Machine? A DC machine is an electromechanical energy alteration device. The working principle of a DC machine is when electric current flows through a coil within a …
What is a DC Machine? A DC machine is an electromechanical energy alteration device. The working principle of a DC machine is when electric current flows through a coil within a magnetic field, and then the magnetic force generates a torque which rotates the dc motor.
A Direct Current (DC) machine is an energy conversion device. It converts electrical energy to mechanical while working as a motor and the mechanical energy to electrical energy while working as the generator.
Construction of dc Machines: The rotor in a dc machine is called an armature. The armature has cylindrical steel core that is composed of a stack of slotted laminations. Slots in laminations are aligned axially along rotor or shaft. Armature windings are placed in slots. The stator in a dc machine is the field part of the machine.
Carbon for small DC machine. For large DC machine, electrographite is used to make Figure 3.1.1 Construction of DC Motor [Source: "Basic Electrical and Electronics Engineering" by Kothari D.P, Page – 324] brushes. A spring keeps the brushes pressed on the commutator surface.
Small dc machines (in fractional horsepower rating) are used primarily as control devices, such as tachogenerators for speed sensing and servomotors for positioning and tracking.
