our scope called one core cable for distribution system so we like to use 4 core cable with one equipment grounding conductor so what kind of technical reasons i can say that the 4core is better then 1 core,
2 4085Post New Elite Construction Electrical Engineering Interview Questions
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Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?
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