![A 30 kV, 50 Hz, 50 MVA generator has the positive, negative, and zero sequence reactances of 0.25 pu, 0.15 pu, and 0.05 pu,](https://www.gkseries.com/blog/wp-content/uploads/2023/08/A-30-kV-50-Hz-50-MVA-generator-has-the-positive-negative-and-zero-sequence-reactances-of-0.25-pu-0.15-pu-and-0.05-pu.jpg)
Q. A 30 kV, 50 Hz, 50 MVA generator has the positive, negative, and zero sequence reactances of 0.25 pu, 0.15 pu, and 0.05 pu, respectively. The neutral of the generator is grounded with a reactance so that the fault current for a bolted LG fault and that of a bolted three-phase fault at the generator terminal are equal. The value of grounding reactance in ohms (round off to one decimal place) is
Solution:
Given that,
X1 = 0.25 pu
X2 = 0.15 pu
X0 = 0.05 pu
![](https://www.gkseries.com/blog/wp-content/uploads/2023/08/Screenshot-577.png)