Fuselink
Electrical
- Dec 20, 2006
- 21
Dear Friends,
I am trying to figure out how hydro has calculated the L-L-G fault based on the following info. My answers do not match.
Based on IEEE 80.
L-L-G I0=E*X0/( X1*(X0+X2) + X2*X0) ( Page 96)
L-G I0=E/(X0+X1+X2)
X1=X2
Then I get
L-L I0=1763.98
L-G I0=2400.2
Hydro Info:
Maximum Minimum
L-L-G 3467 2832
L-G 2452 2111
Z1 1.66+j6.765 1.6973+j8.36
Z0 3.0442+j18.21 3.117+j20.31
I am trying to figure out how hydro has calculated the L-L-G fault based on the following info. My answers do not match.
Based on IEEE 80.
L-L-G I0=E*X0/( X1*(X0+X2) + X2*X0) ( Page 96)
L-G I0=E/(X0+X1+X2)
X1=X2
Then I get
L-L I0=1763.98
L-G I0=2400.2
Hydro Info:
Maximum Minimum
L-L-G 3467 2832
L-G 2452 2111
Z1 1.66+j6.765 1.6973+j8.36
Z0 3.0442+j18.21 3.117+j20.31