engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Power Systems Fault Analysis
Match the different unsymmetrical fault currents.
|
Unsymmetrical fault |
Fault current |
|
a. LG fault |
1. \({I_F} = \frac{{\sqrt 3 {E_a}}}{{{Z_1} + {Z_2}}}\) |
|
b. LL fault |
2. IF = 3Ia0 |
|
c. LLG fault |
3. \({I_F} = \frac{{3{E_a}}}{{{Z_1} + {Z_2} + {Z_3}}}\) |
1
a - 1, b - 2, c - 3
2
a - 3, b - 2,c - 1
3
a - 3, b - 1, c - 2
4
a - 1, b -3, c - 2