Siemens SIPROTEC 7SS60, Manual

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Technical Data
9-2
7SS60 Manual
E50417–G1176–C132–A2
9.1 General data
9.1.1 7SS601 measuring system
Measuring input I
d
Rated current 100 mA
Rated frequency 50/60 Hz can be set, 16.7 Hz
Dynamic overload capability 250 x I
N
one half cycle
(pulse current)
Thermal overload capability (rms) 100 x I
N
for
≤
1 s
(where external summation or matching 30 x I
N
for
≤
10 s
current transformers are used, their limit 4 x I
N
continuous
data must be observed)
Isolating voltage 2.5 kV (rms)
Measuring range for operational 0 to 240 %
measured values
Measuring dynamics 100 x I
N
without offset
50 x I
N
with full offset
Measuring input I
R
Rated current 1.9 mA
Dynamic overload capability 250 x I
N
for 10 ms
(pulse current)
Thermal overload capability (rms) 100 x I
N
for
≤
1 s
(where external summation or matching 30 x I
N
for
≤
10 s
current transformers are used, their limit 4 x I
N
continuous
data must be observed)
Isolating voltage 2.5 kV (rms)
Measuring dynamics 0 to 200 x I
N
Auxiliary voltage via integrated dc/dc converter 24/48 Vdc (19 to 58 Vdc)
Rated auxiliary voltage U
H
60/110/125 Vdc (48 to 150 Vdc)
(permissible variations) 220/250 Vdc (176 to 300 Vdc)
115 Vdc (92 to 133 Vac)
Superimposed ac voltage
≤
15 % of rated voltage
peak to peak
Power consumption
quiescent approx. 3 W
energized approx. 5 W
Bridging time during failure/short-circuit
≥
50 ms at U
H
≥
100 Vdc
of auxiliary voltage
≥
20 ms at U
H
≥
48 Vdc