Siemens siprotec SJ62 User Manual page 516

Fault Recording
Time Stamping
Fault Recording
Energy
Statistics
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
Recording of indications of the last 8 power system faults
Recording of indications of the last 3 power system ground faults
Resolution for Event Log (Operational An-
nunciations)
Resolution for Trip Log (Fault Annuncia-
tions)
Maximum Time Deviation (Internal Clock)
Battery
Maximum 8 fault records saved, Memory maintained by buffer battery in case of loss of power
supply
Recording Time
- 7SJ62/63
- 7SJ64
Sampling Rate for 50 Hz
Sampling Rate for 60 Hz
Meter Values for Energy
Wp, Wq (real and reactive energy)
Range
1)
Tolerance
1)
At nominal frequency
Saved Number of Trips
Number of Automatic Reclosing Com-
mands
(segregated according to 1st and ≥ 2nd
cycle)
Accumulated Interrupted Current (segregat-
ed according to pole)
4.24 Additional Functions
1 ms
1 ms
0.01 %
Lithium battery 3 V/1 Ah, type CR 1/2 AA
Message „Battery Fault" for insufficient battery
charge
Total 5 s
Total 20 s
Pre-event and post-event recording and memory
time adjustable
1 sample/1.25 ms (16 sam/cyc)
1 sample/1.04 ms (16 sam/cyc)
in kWh (MWh or GWh) and in kVARh (MVARh or
GVARh)
28 bit or 0 to 2 68 435 455 decimal for IEC 60870-
5-103 (VDEW protocol) 31 bit or 0 to 2 147 483 647
decimal for other protocols (other than VDEW)
≤ 5% for I > 0.5 I
, V > 0.5 V
Nom
| cos ϕ | ≥ 0.707
Up to 9 digits
Up to 9 digits
Up to 4 digits
and
Nom
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