Contents
What is the significance of impedance triangle in AC circuit?
The of magnitude of impedance Z is equal to OB and can be find as below. Thus, we can say that square of impedance is equal to the sum of square of resistance and reactance. Hence, Impedance Triangle helps us to find the magnitude as well as the angle of impedance of a circuit.
Are impedance phasors?
Although the impedance is the ratio of two phasors, it is not a phasor, because it does not correspond to a sinusoidally varying quantity. It is important to realize that in frequency domain, the values obtained for impedance are only valid at that frequency.
What is meant by power factor and impedance triangle?
We have seen here that the three elements of electrical power, Real Power, Reactive Power and Apparent Power in an AC circuit can be represented by the three sides of a triangle called a Power Triangle. Then the cosine of the resulting angle between the current and voltage is the power factor.
How are phasors used in AC circuit analysis?
Phasor is a vary important mathematical concept used frequently for Alternating Current (AC) circuit analysis. I will try to explain some basic properties of phasors that you studied (or did not study) in school.
What was the topic of the 2004 phasor course?
Notes for course EE1.1 Circuit Analysis 2004-05 TOPIC 6 – PHASOR ANALYSIS OF AC CIRCUITS
How are phasor diagrams and phasors algebra related?
Phasor Diagrams and Phasor Algebra Phasor Diagrams are a graphical way of representing the magnitude and directional relationship between two or more alternating quantities Sinusoidal waveforms of the same frequency can have a Phase Difference between themselves which represents the angular difference of the two sinusoidal waveforms.
How is the position of the secondary phasor determined?
The secondary phasor must remain locked at the same angle as the primary phasor, but its position on the diagram is determined by where the transformer winding connects to ground. The following analyses illustrate the relationships between phase angles, transformer polarity, circuit connections, and phasor diagrams.