Category: POWER SYSTEM COMPONENTS

Representation of Load Curve

Representation of Load Curve: Load drawn by consumers is the toughest parameter to assess scientifically. The magnitude of the load, in fact, changes continuously so that the load forecasting problem is truly a statistical one. A typical daily Representation of Load Curve is shown in Fig. 1.1. The loads are generally composed of industrial and […]

Salient Pole Synchronous Generator

Salient Pole Synchronous Generator: A Salient Pole Synchronous Generator, as shown in Fig. 4.29, is distinguished from a round rotor machine by constructional features of field poles which project with a large interpolar air gap. This type of construction is commonly employed in machines coupled to hydroelectric turbines which are inherently slow-speed ones so that […]

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 into the power network or, in the case of a motor, it draws electrical power from the network and converts it into the mechanical form. […]

Complex Power Flow in Single Phase Load

Complex Power Flow in Single Phase Load: Consider a Complex Power Flow in Single Phase Load fed from a source as in Fig. 4.9. Let When θ  is positive, the current lags behind voltage. This is a convenient choice of sign of θ in power systems where loads have mostly lagging power factors. Complex power […]

Per Unit System Definition

Per Unit System Definition: Per Unit System Definition- It is usual to express voltage, current, voltamperes and impedance of an electrical circuit in per unit (or percentage) of base or reference values of these quantities. The Per Unit System Definition value of any quantity is defined as: The Per Unit System Definition method is particularly […]

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