Description

The PI line model is mainly used for short transmission lines. The equivalent circuit is shown below.

It is assumed that the capacitance on both sides is identical. The RL branches are also coupled. The parameters for the 6-phase PI lines are the same as for those for 3-phase PI lines, except that the dimension of the R, L, and C matrices representing the impedance and admittance of the conductors is 6x6, instead of 3x3. The reason is that this model represents a line with six conductors. A 6-phase PI model can be used to represent a double-circuit transmission line. The neutral coupling between both circuits (mutual impedance) is represented only in zero sequences.

Table of Contents

Mask and Parameters

General Parameters

Name	Description				Unit	Variable = {Possible Values}

Name	Description		Unit	Variable = {Possible Values}
Description	Use this field to add information about the component			Description = {'string'}
EMTP (.pun) file for line parameters calculation	The location (path) of the EMTP file (pun file) containing the line parameters. However, The EMTP “.pun” format is not allowed with this model			File = {'path.name'}
Type	The line data can be taken using Matrix or Sequence parameters			Matrix/Sequence = { 0, 1}
	Matrix {0}	Untransposed line. The data is filled in the matrices
	Sequence {1}	Transposed line. The data is filled in the sequences
Line Length	The length of the line		km	length = {0, 1e64}
Base power (perPhase)	Base value for PU conversion		MVA per phase	pBase = { [1, 1e64] }
Base voltage (rmsLN)	Base value for PU conversion		kV rms LN	vBase = { [1, 1e64] }
Base frequecy	Base value for PU conversion		Hz	fBase = { [1, 1e64] }

Matrix Parameters

Name	Description				Unit	Variable = {Possible Values}

Name	Description				Unit	Variable = {Possible Values}
Resistance - R	Resistance matrix				Ω/km

HYPERSIM Documentation

PI Section, 6-ph

Description

Mask and Parameters

General Parameters

Matrix Parameters