4.22 Auxiliary Functions
485
7SA522 Manual
C53000-G1176-C155-3
1)
At nominal frequency
Operational Event Log Buffer
Fault Protocol
Fault Recording
Statistics (serial protection data interface)
Statistics
Real Time Clock and Buffer Battery
Remote measured values for currents I
L1
, I
L2
, I
L3
of remote end
Ï•(I
L1
); Ï•(I
L2
); Ï•(I
L3
) (remote versus local) in °
Remote measured values for voltages U
L1
; U
L2
; U
L3
of remote end
Ï•(U
L1
); Ï•(U
L2
); Ï•(U
L3
) (remote versus local) in °
Capacity 200 records
Capacity 8 faults with a total of max. 600 messages
Number of stored fault records Max. 8
Storage time Max. 5s for each fault
approx. 15 s in total
Sampling rate at f
N
= 50 Hz 1 ms
Sampling rate at f
N
= 60 Hz 0.83 ms
Availability of transmission for applications with pro-
tection data interface
Availability in %/min and %/h
Delay time of transmission Resolution 0.01 ms
Number of trip events caused by the device Separately for each breaker pole (if single-pole tripping is pos-
sible)
Number of automatic reclosures
initiated by the device
Separate for 1-pole and 3-pole AR;
separate for 1st AR cycle
and for all further cyles
Total of interrupted currents Pole segregated
Maximum interrupted current Pole segregated
Resolution for operational events 1 ms
Resolution for fault events 1 ms
Buffer battery Type: 3 V/1 Ah, Type CR 1/2 AA
self-discharging time approx. 10 years
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