Fault location

Transitional resistance/Ω

circuit

The data of reactive power

Identification result

$Q_1\left(\text{kvar}\right)$

${\lambda }_M$

$Q_3\left(\text{kvar}\right)$

${\lambda }_N$

${\rho }_{{\rm I}}$

$Q_2\left(\text{kvar}\right)$

$Q_4\left(\text{kvar}\right)$

${\rho }_{{\rm I}{\rm I}}$

IIAC short circuit grounding occurs at a distance of 50 km from bus N; fault initial angle is 45˚

0

I circuit

2.7233e−05

8.5505e+02

2.7231e−05

8.5509e+02

Internal fault

II circuit

2.3285e−02

2.3285e−02

Internal fault

100

I circuit

7.6425e−03

8.4949e+02

7.6416e−03

8.4958E+02

Internal fault

II circuit

6.4920

6.4920

Internal fault

300

I circuit

1.5208e−02

8.5388e+02

1.5206e−02

8.5395E+02

Internal fault

II circuit

1.2985e+01

1.2985e+01

Internal fault

600

I circuit

1.9714e−02

8.5468e+02

1.9713e−02

8.5474E+02

Internal fault

II circuit

1.6850e+01

1.6850e+01

Internal fault

IABIIC short circuit grounding occurs at a distance of 250 km from bus N; fault initial angle is 45˚

0

I circuit

8.7770

2.2532

2.2522e+01

2.3305

2.5660

Internal fault

II circuit

1.9776e+01

5.2487e+01

2.6541

Internal fault

100

I circuit

8.7770

2.2532

2.2522e+01

2.3305

2.5660

Internal fault

II circuit

1.9776e+01

5.2487e+01

2.6541

Internal fault

300

I circuit

8.7770

2.2532

2.2522e+01

2.3305

2.5660

Internal fault

II circuit

1.9776e+01

5.2487e+01

2.6541

Internal fault

600

I circuit

8.7770

2.2532

2.2522e+01

2.3305

2.5660

Internal fault

II circuit

1.9776e+01

5.2487e+01

2.6541

Internal fault