Ancillary Functions - Siemens 7SV512 Instruction Manual

Numerical circuit breaker failure protection v1.0
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7SV512
V1
3.4

Ancillary functions

Output of measured values
Operational values of currents
Measuring tolerances
Measured values plausibility checks
--- Sum of currents
Steady-state measured value supervision
Current unbalance
Fault event data storage
Storage of annunciations of the last three faults
Real time clock (optional)
Resolution for operational annunciations
Resolution for fault event annunciations
Clock module (optional)
Max time deviation
Data storage for fault recording
Storage period (fault detection = 0 ms), max.
--- for operating interface
--- for LSA interface
Sampling rate
22
I
, I
, I
, and I
(if connected)
L1
L2
L3
E
in A primary and in % I
N
± 2 % of rated value
phases and earth
I
/I
> symmetry factor
max
min
as long as I > I
limit
1 min
1 ms
DALLAS Type DS 138 --- 32k
RAMifield TIMEKEEPER
Self-discharge time >10 years
0.01 %
---100 ms to +2900 ms at 50 Hz
--- 83 ms to +2416 ms at 60 Hz
--- 60 ms to + 600 ms at 50 Hz
--- 50 ms to + 500 ms at 60 Hz
1 instantaneous value per ms at 50 Hz
1 instantaneous value per 0.83 ms at 60 Hz
Technical data
C53000---G1176---C91

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