The role of place arrester

Arrester Type

Arrester rated KV (rms)

System nominal voltage KV

Continuous nominal voltage KV (RMS)

DC (U1mA) not less than the reference voltage KV

Lightning impulse current, residual voltage KV (peak)

2000μs square wave current A (peak)

4/μs impact of current A (peak)

0.75 DC reference voltage maximum leakage current

Low

Y1.5W-0.28/1.3

0.28

0.22

0.24

0.60

1.30

50

25

50

Y1.5W-0.28/2.6

0.50

0.38

0.42

1.20

2.60

Y1.5W-0. 8/3.9

0.8

0.66

0.72

1.80

3.90