NHP TemBreak PRO - Adjusting tsd (Time Delay)

Protection Settings
Short Time Delay Protection (STD)
32
TemBreak PRO B_BE-UM-001-EN  V1.1.0
Adjusting t
sd
(Time Delay)
The trip time tolerance for short time delay protection is: -20 ms / +50 ms
Adjustments to t
sd
can only be made by selecting a pre-defined curve and have a fixed time delay, given in seconds.
Short Time Delay (s)
Pre-defined curve number
Rating (I
n
)
1
2
3
4
5
6
7
8
9
10
B250
40 A
0.1
0.1
0.1
0.1
0.2
─
─
─
125 A
160 A
250 A
─
─
─
B400
250 A
0.1
0.1
0.1
0.1
0.2
0.2
0.2
─
─
─
400 A
B800
630 A
0.1
0.1
0.1
0.1
─
0.2
0.2
0.05
─
─
800 A
B1000
1000 A
0.1
0.1
0.1
0.1
─
0.2
0.2
0.05
─
─
B1250
1250 A
0.1
0.1
0.1
0.1
─
0.2
0.2
0.05
─
─
B1600
1600 A
0.1
0.1
0.1
0.1
─
0.2
0.2
0.05
─
─