| Characteristic | Value | ||
|---|---|---|---|
| Operate time 1 | NPS function |
U Fault = 1.1 × set Neg Seq voltage Lev |
<33 ms |
|
U Fault = 5.0 × set Neg Seq voltage Lev |
<18 ms |
||
| Delta function |
ΔU = 1.1 × set Voltage change rate |
<30 ms |
|
|
ΔU = 2.0 × set Voltage change rate |
<24 ms |
||
1 Includes the delay of the signal output contact, f n = 50 Hz, fault voltage with nominal frequency injected from random phase angle, results based on statistical distribution of 1000 measurements