# ee212_2b - EE 212 Passive AC Circuits Lecture Notes 2b...

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Click to edit Master subtitle style 9/28/10 EE 212 Passive AC Circuits Lecture Notes 2b

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9/28/10 Application of Thevenin’s Theorem Thevenin's Theorem is specially useful in analyzing power systems and other circuits where one particular segment in the circuit (the load) is subject to change. Source Impedance at a Power System Bus The source impedance value (or the network impedance at the power system bus) can be obtained from the utility for all the sub-stations of a power grid. This is the Thevenin Impedance seen upstream from the sub-station bus. The Thevenin Voltage can be measured at the bus (usually the nominal or rated voltage at the bus). Thevenin equivalent at the sub-station is important to determine cable, switchgear and equipment ratings, fault levels, and load characteristics at different times.
9/28/10 A B Linear Circuit Norton’s Theorem Any linear two terminal network with sources can be replaced by an equivalent current source in parallel with an equivalent impedance. A

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## This note was uploaded on 09/25/2010 for the course EE 212 taught by Professor Gander during the Spring '10 term at University of Saskatchewan- Management Area.

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ee212_2b - EE 212 Passive AC Circuits Lecture Notes 2b...

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