DC Machine: Construction and their Applications

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 …

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(PDF) DC MACHINES Basic Structure of Electrical …

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...

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DC MachinesDC Machines

Fundamental Rotor Construction: Windings lies in carved slots in a ferromagnetic core. Note that for the DC generator, the rotor is the armature and the stator provides the "field" magnetic …

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DC Machines

Dc generator is built utilizing the basic principle that emf is induced in a conductor when it cuts magnetic lines of force. DC motor works on the basic principle that a current carrying …

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Chapter # 3 DC Machines

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.

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Construction of dc Machines

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 …

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DC Motors and Generators

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 …

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(PDF) DC MACHINES Basic Structure of Electrical Machines

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 …

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Principles and Working of DC and AC machines

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 …

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BEEF184T10 DC MACHINES Class Notes Prepared By …

Construction Based on the working principle DC motor & generator, requirement for the both machines are magnetic fields, conductor & mechanical movement. So construction wise both …

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DC MACHINES AND TRANSFORMERS

But for large construction of DC generator, where weight of the machine is concerned, lighter cast steel or rolled steel is preferable for constructing yoke of DC generator. Normally larger yokes …

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