Wfg42438
Electrical
- Apr 10, 2017
- 67
Hello Everyone,
I am in the middle of trying to further understand symmetrical components.
The SEL paper below has been a great resource.
I notice power system programs allow one to see the sequence, phase currents or the "3 * I Zero Seq Current" results for LG or LLG faults.
I cant seem to be able to figure out the significance of or the typical application for the "3 * I Zero Seq Current" result.
Based on the paper above the only thing I can conclude is that "3 * I Zero Seq Current" is equal to the summation of the phase currents but i still don't have a clear picture of the end goal for this result is.
Can anyone shed some light on what this result is typically used for or an article that clarifies the same?
Could it be that this is perhaps used to identify the pick up value of ground protection?
I am in the middle of trying to further understand symmetrical components.
The SEL paper below has been a great resource.
I notice power system programs allow one to see the sequence, phase currents or the "3 * I Zero Seq Current" results for LG or LLG faults.
I cant seem to be able to figure out the significance of or the typical application for the "3 * I Zero Seq Current" result.
Based on the paper above the only thing I can conclude is that "3 * I Zero Seq Current" is equal to the summation of the phase currents but i still don't have a clear picture of the end goal for this result is.
Can anyone shed some light on what this result is typically used for or an article that clarifies the same?
Could it be that this is perhaps used to identify the pick up value of ground protection?