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    Module 1.Ppt Network

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    bijukumarg
    The document discusses network theorems and provides definitions of key electrical network concepts including: 1) Passive and active networks, with passive networks containing only resistive, inductive, and capacitive elements and no voltage or current sources, while active networks contain one or more sources. 2) Lumped and distributed elements, with lumped elements able to be physically separated and distributed elements not able to be separated. 3) Linear and bilateral circuits, with linear circuits having constant parameters and bilateral circuits having symmetrical characteristics in both current flow directions.

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    Module 1.Ppt Network

    Uploaded by

    bijukumarg
    79 views55 pages
    The document discusses network theorems and provides definitions of key electrical network concepts including: 1) Passive and active networks, with passive networks containing only resistive, inductive, and capacitive elements and no voltage or current sources, while active networks contain one or more sources. 2) Lumped and distributed elements, with lumped elements able to be physically separated and distributed elements not able to be separated. 3) Linear and bilateral circuits, with linear circuits having constant parameters and bilateral circuits having symmetrical characteristics in both current flow directions.

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    USEFUL ELECTRICAL ENGINEERING STUDENTS

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    © © All Rights Reserved

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    The document discusses network theorems and provides definitions of key electrical network concepts including: 1) Passive and active networks, with passive networks containing only resistive, inductive, and capacitive elements and no voltage or current sources, while active networks contain one or more sources. 2) Lumped and distributed elements, with lumped elements able to be physically separated and distributed elements not able to be separated. 3) Linear and bilateral circuits, with linear circuits having constant parameters and bilateral circuits having symmetrical characteristics in both current flow directions.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    79 views55 pages

    Module 1.Ppt Network

    Uploaded by

    bijukumarg
    The document discusses network theorems and provides definitions of key electrical network concepts including: 1) Passive and active networks, with passive networks containing only resistive, inductive, and capacitive elements and no voltage or current sources, while active networks contain one or more sources. 2) Lumped and distributed elements, with lumped elements able to be physically separated and distributed elements not able to be separated. 3) Linear and bilateral circuits, with linear circuits having constant parameters and bilateral circuits having symmetrical characteristics in both current flow directions.

    Copyright:

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    of 55

    SUB ENGINEER KSEB

    SYLLABUS BASED TRAINING PROGRAMME

    PART I

    3 A. NETWORK THEOREMS

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    NETWORK

    • An electrical network is an

    interconnection of electrical elements such

    as resistors, inductors, capacitors, and

    switches

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    Passive Network/Element:-
    Passive network is one, which contains no source of emf in
    it i.e., R, L, C.
    An element that is capable of receiving power is called
    passive element Ex: Resistor, Inductor, Capacitor.

    Active Network/Element:-
    Active network is one that contains one or more than one
    source of emf, then the network is called an active
    network.
    An element that is capable of supplying power is called
    an active element.
    EXAMPLES : Voltage sources, Current sources
    Generators (such as alternators and DC generators)
    All different types of transistors (such as bipolar junction
    transistors, MOSFETS, FETs, and JFET)
    Diodes (such as Zener diodes, photodiodes, Schottky
    diodes, and LEDs)

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    • Lumped Elements:- When it is possible to separate the elements
    of a network physically like resistors, inductors, capacitors, etc. the
    elements are called as lumped elements. Kirchhoff’s law is only
    applicable to the circuit with lumped elements.

    • Distributed Elements:- When it is not possible to separate the


    elements of a network physically the elements are known as
    distributed elements. The best example of such a network is a
    transmission line where resistance, inductance, and capacitance of
    a transmission line are distributed all along its length and cannot be
    shown as a separate element, anywhere in the circuit.

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    Linear circuit:- A linear circuit is an electric circuit in which circuit
    parameters (Resistance, inductance, capacitance, waveform, frequency
    etc) are constant. In other words, a circuit whose parameters are not
    changed with respect to Current and Voltage is called Linear Circuit.
    Bilateral Circuit:- A circuit Chose characteristics are the same in
    either direction of the current flow is called a bilateral circuit. The
    electrical transmission line is an example of the bilateral circuit as it
    performs its functions equally Bell in both directions. Whereas, a diode
    is a unilateral element, unlike a bilateral element in which direction of
    flow of current affects circuit behavior. In forward bias, it has the
    least resistance and allows maximum current through it. In reverse bias,
    it offers high resistance to the flow of current.

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    Mesh: A mesh is a closed path in a
    circuit with no other paths inside it. In
    other words, a loop with no other loops
    inside it.

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    • The source resistance of an ideal voltage
    source should be ZERO
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    • known as the dual of Norton’s theorem

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    • known as the dual of Thevenin’s theorem

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    PREPARED BY
    G. BIJUKUMAR

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