Electrical Power System SMJE 2103. The Importance of Electrical Power Importance in daily live Importance in industrial Importance in security Importance.

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Presentation transcript:

Electrical Power System SMJE 2103

The Importance of Electrical Power Importance in daily live Importance in industrial Importance in security Importance in infrastructure Importance in conversion energy The energy is considered to be superior with others according to some proofs. Please list and discuss the proof.

Fundamental of Electrical Power DC Circuit AC Circuit Phasor Diagram AC Power Power Measurement Power Factor

DC Circuit

Example

How much dc current flows through R1, R3 and R2?

Example

AC Circuit -Series-

AC Circuit -Parallel-

AC Circuit -RLC-

AC Circuit -RLC Analysis-

Example Calculate the ac current suppose flows in the circuit

Example Let the source is 240V, find the current source

Example

Phasor Diagram

AC Power

AC Power -Power Triangle-

Example Let the source is 100 V  0 o, a.Find the total number of watts, volt-ampere reactive, and volt-ampere, and the power factor for the network. b.Sketch the power triangle

Power Measurement

Power Factor

Power Factor Correction

Tutorial Let a 100V sinusoidal source be connected to a series combination of a 3Ω resistor, an 8ΩΩ inductive reactance and a 4Ω capacitive reactance. a)Draw the circuit diagram b)Compute the series impedance c)Determine the current delivered by the source d)Is the current lagging or leading the source voltage? e)What is the power of this circuit?