Lumped parameter models

Lumped parameter models

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A review of the method used to calculate circuit component values for three-phase power lines leads to the identification of the first step; the derivation of a formula relating the capacitance of an isolated conductor to its length and radius. This formula can be regarded as a basic building block from which the capacitive parameters of multi-conductor assemblies can be derived. In computer terminology, a low-level object or operation from which higher-level, more complex objects or operations can be constructed is termed a primitive. So it seems reasonable to use the term primitive capacitance to identify the basic relationship.

Chapter Contents:

  • 2.1 Primitive capacitance
  • 2.2 Primitive inductance
  • 2.3 Duality of L and C
  • 2.4 Loop parameters
  • 2.5 Circuit parameters
  • 2.5.1 Inductance
  • 2.5.2 Capacitance
  • 2.5.3 Maintaining duality
  • 2.5.4 Resistance
  • 2.5.5 Basic assumption
  • 2.6 Twin-conductor model
  • 2.7 Three-conductor model
  • 2.8 Optimum coupling
  • 2.9 Transfer admittance
  • 2.10 Co-axial coupling
  • 2.11 The ground plane

Inspec keywords: lumped parameter networks; conductors (electric); power cables; capacitance

Other keywords: power lines; primitive capacitance; isolated conductor capacitance; multiconductor assembly; capacitive parameter; lumped parameter model; circuit component calculation

Subjects: Conductors; Power cables

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