4 Technical Data
440
7UT613/63x Manual
C53000-G1176-C160-2
Feeder Current Guard (Busbars, Short Lines)
Operating Time (Busbars, Short Lines)
Operating Range Frequency (Busbars, Short Lines)
Delay of blocking of differential current
T
Monit
1 s to 10 s Steps 1 s
Trip release by feeder current guard I>
Guard
/I
NObj
0.20 to 2.00
or 0 (always
released)
Steps 0.01
Pickup time / dropout time with single-side infeed
Pickup time at frequency 50 Hz 60 Hz 16.7 Hz
I
Diff
> min
high-speed relays 11 ms 11 ms 18 ms
high-speed relays 6 ms 6 ms 13 ms
I
Diff
>> min
high-speed relays 11 ms 11 ms 18 ms
high-speed relays 6 ms 6 ms 13 ms
Dropout time, approx. 54 ms 46 ms 150 ms
Dropout ratio approx. 0.7
Frequency influence within the frequency tagging range see Figure 4-5
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