Line or cable charging current

[dfdt]

Should we have to consider capacitance to earth or interphases capacitance for computing line/cable charging current? What is meant by zero sequence charging current?

 

[Kiribanda]

bholas,
In order to calculate the charging current of the system you have to add phase to ground capacitances of all connected cables and then multily by 3.

 

[dfdt]

Will this give us zero sequence charging current or positive sequence charging?

 

[7anoter4]

You may calculate the capacitance of the transmission line according to attachment.Also you can see:

http://www.tup.tsinghua.edu.cn/Resource/tsyz/030533-01.pdf