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Practical PMMC Movement

Practical PMMC Movement: The basic Practical PMMC Movement (also called a D'Arsonval movement) offers the largest magnet in a given space, in the form of a horse-shoe, and is used…

Working Principle of D Arsonval Galvanometer

Working Principle of D Arsonval Galvanometer: The action of the most commonly dc meter is based on the fundamental principle of the motor. The motor action is produced by the…

Dynamics of Synchronous Machine

Dynamics of Synchronous Machine: The Kinetic Energy of the Rotor at Dynamics of a Synchronous Machine is where J = rotor moment of inertia in Kg-m2 ωsm = synchronous speed in…

Phasor Diagram of Synchronous Motor

Phasor Diagram of Synchronous Motor: The Phasor Diagram of Synchronous Motor is the most important element of a power system. It converts mechanical power into electrical form and feeds it…

Flux Linkages of an Isolated Current Carrying Conductor

Flux Linkages of an Isolated Current Carrying Conductor: Transmission lines are composed of parallel conductors which, for all practical purposes, can be considered as infinitely long. Let us first develop…

Vector Control of Induction Motor

Vector Control of Induction Motor: The sole idea behind the vector control of induction motor is to have an electrical drive which must offer superior performance than widely used separately…

Types of Forced Commutation

Types of Forced Commutation: It was observed from the discussion on choppers and inverters that in thyristor systems fed from dc supply, the forward current does not pass through zero…

Gate Turn Off Thyristor (GTO) – Symbol, Operations and Applications

Gate Turn Off Thyristor (GTO) - Symbol, Operations and Applications: Conventional thyristors are used as ideal switches in power electronic applications. They have the capability of blocking several thousand volts…