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Table 2 Neutral voltage variation with fault location

From: Fault protection method of single-phase break for distribution network considering the influence of neutral grounding modes

Fault location (km)

Neutral voltage (V)

Ungrounded

Arc suppression coil grounded

Low resistance grounded

1

531.69

5176.02

64.96

2

475.16

4631.55

58.05

3

418.64

4101.22

51.15

4

362.12

3528.46

44.24

5

305.61

2941.56

37.34

6

245.59

2390.02

30.00

7

189.92

1845.55

23.20

8

134.30

1311.68

16.40

9

78.79

767.21

9.62