Powerline cable count and engineering question (HV power distribution lines)

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The discussion revolves around the configuration and purpose of high voltage power distribution lines, specifically 110kV and 330kV lines. It is clarified that transmission lines typically do not require a neutral conductor, as three-phase systems can operate without one, and the presence of multiple conductors per phase can increase capacity and reduce losses. The dual presence of 110kV and 330kV lines on the same structures is explained as a strategy to accommodate different load requirements, with the lower voltage line serving local needs while the higher voltage line supports larger industrial loads. Additionally, the design of substations allows for connection and disconnection of lines without interrupting service, enhancing reliability. Overall, maintaining both voltage levels can provide operational flexibility and redundancy in the power distribution network.
  • #31
Baluncore said:
Power line engineering is a complicated compromise, it is hard to guess what parameters were most important during the design.

Well said, and nearly complete list of design considerations.
 
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  • #32
I think the word compromise, has been vilified, and particularly to some more idealistic engineering types. One way to see this is an equation, with many possible solutions - and the best one(s) include many variables ( arguments).
 

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