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Unformatted text preview: EE 580  Lecture 10 Monday Apr 3, 2000 Topics for Today: Internal workings of ATP T lines
ATP Calculation Engine Matrix Formulations
CB Restrike, Reignition when switching Ca ATP Simulation Pointer for the day: When simulating a distributed parameter
transmission line, traveling waves and their
reflections might be of interest. If you wish to
exactly match your calculations with the
simulation, define the integration timestep At to
be a value that divides an integer number of times into the propagation time I: (tau). This ensures that reflections will occur at an
exact increment of At. Transmission Lines ( 224C 0 SrsS For a singlephase distributed parameter line, use the Clarke 1phase line. f‘ c taukc Linc.
Moé¢‘ Pasting from the ATPDraw Help Menu: Name :
Card : BRANCH
Data : R/l= ”IA: 23‘ ‘.!’. 1:
\ ILINE= Node : From=
To: LINEZT_1 ~ Distributed parameters, sigle phase Resistance pr. length in [Ohm/length] %_ c
ILINE=0: A=inductance L' in [mH/length] if Kopt.=0 ’
A=L' in [ohm/length] if Xopt.=power frequency.
ILINE=1: A=Modal surge impedance in [ohm] Z=sqrt(L'/C') 't’
IziNE=2: A=Modal surge impedance in [ohm] z=sqrt(L'/C')
ILINE=0: B=capacitance C' in [aF/length] if Copt.=0 ‘g’
B=C' in [aMho/length] if Copt.=power frequency.
ILINE=1: B=propagation velocity in [length/sec.] v=1/sqrt(C'*L')
fffﬁﬁzg? B=modal travel time in [sec] T=sqrt(L'*C')*length
length of line (>0 for transposed lines)
Takes values from 0 to 2
Kopt. and Capt. arEaagﬁn menu: ATPlSettings/Simulation.
Start node of line
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 Spring '09

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