Recloser switching overvoltages
Recloser switching overvoltages
(OP)
Hello,
I am reading insulation coordination standards and references and I have read that with three-phase reclosing the switching overvoltages are quite higher than with single-phase reclosing.
Can anybody explain the fundamentals of this? I have tried looking at high voltage equipment manufacturer websites and have been unable to find any theoretical explanation for this. And I have not found any information about how three-phase reclosing and single-phase reclosing work.
It is for a 230 kV transmission line.
Thanks.
I am reading insulation coordination standards and references and I have read that with three-phase reclosing the switching overvoltages are quite higher than with single-phase reclosing.
Can anybody explain the fundamentals of this? I have tried looking at high voltage equipment manufacturer websites and have been unable to find any theoretical explanation for this. And I have not found any information about how three-phase reclosing and single-phase reclosing work.
It is for a 230 kV transmission line.
Thanks.






RE: Recloser switching overvoltages
RE: Recloser switching overvoltages
I would expect to have different over-voltage values for offloading and charging of the circuit with the offloading being more onerous.
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