Sequence impedances of a power cable
Sequence impedances of a power cable
(OP)
Hi all,
I am using a network distribution software and trying to create some new cables. For the creation of a cable, I have been given a number of parameters that I need to fill in.
I have a choice; either I can give the radius and GMR of the cable to calculate the positive and zero sequence impedances of the cable or I can simply put in the values of the positive and zero sequence impedances.
I do not have the data to get the software to calculate my impedances. However in the manufacturer data, I have been given the values for: Max AC resistance and reactance. I am using a waveform 4 core cable.
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The problem is that I have no idea if this is positive or zero sequence impedance or if its phase impedance.
Can anyone kindly help me out with it?
I am using a network distribution software and trying to create some new cables. For the creation of a cable, I have been given a number of parameters that I need to fill in.
I have a choice; either I can give the radius and GMR of the cable to calculate the positive and zero sequence impedances of the cable or I can simply put in the values of the positive and zero sequence impedances.
I do not have the data to get the software to calculate my impedances. However in the manufacturer data, I have been given the values for: Max AC resistance and reactance. I am using a waveform 4 core cable.
h
The problem is that I have no idea if this is positive or zero sequence impedance or if its phase impedance.
Can anyone kindly help me out with it?






RE: Sequence impedances of a power cable
RE: Sequence impedances of a power cable
RE: Sequence impedances of a power cable
Positive-seq Z = AC resistance and reactance in the datasheet
Zero-seq = unknown but could be found from the cable manufacturer.
This leads to another question. How essential is it to have the zero-sequence impedance if you are planning to run load-flow and fault analysis on your network?
RE: Sequence impedances of a power cable
RE: Sequence impedances of a power cable