Information List - Siemens siprotec SJ62 User Manual

2P-Procedure
2
I t-Procedure

2.23.3.4 Information List

No. Information
- #of TRIPs=
409 >BLOCK Op Count
1020 Op.Hours=
Σ Ia =
1021
Σ Ib =
1022
Σ Ic =
1023
2896 79 #Close1./3p=
2898 79 #Close2./3p=
ΣI^x A=
16001
ΣI^x B=
16002
ΣI^x C=
16003
16006 Resid.Endu. A=
16007 Resid.Endu. B=
16008 Resid.Endu. C=
16011 mechan.TRIP A=
16012 mechan.TRIP B=
16013 mechan.TRIP C=
ΣI^2t A=
16014
ΣI^2t B=
16015
ΣI^2t C=
16016
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
The summated values can be interpreted as the number of tripping operations at rated
operational current of the CB. They are displayed in the statistics values without unit
and with two decimal places.
Parameter 172 52 B.WEAR MONIT can be set to activate the 2P-procedure. An op-
erating cycles diagram (see sample diagram in the functional description of the 2P-
procedure), provided by the manufacturer, shows the relationship of make-break op-
erations and tripping current. The two vertices of this characteristic in a double-loga-
rithmic scale are decisive for the setting of address 260 to 263:
Point P1 is determined by the number of permitted make-break operations (parameter
261 OP.CYCLES AT Ir) for rated operational current Ir (parameter 260 Ir-52)
Point P2 is determined by the maximum number of make-break operations (parameter
263 OP.CYCLES Isc) for rated fault tripping current Isc (parameter 262 Isc-52).
For the procedure to operate correctly, the time response of the circuit breaker must
be specified in parameters 266T 52 BREAKTIME and 267T 52 OPENING.
Parameter 172 52 B.WEAR MONIT is set to activate the I
The squared tripping currrent integrals are referred to the squared nominal current of
the device. In order to calculate the arcing time, the device requires the CB tripping
time T 52 BREAKTIME and the CB operating time T 52 OPENING. The „current zero"
criterion is required to recognize the last zero crossing (arc extinction) of the currents
after a trip.
Type of In-
formation
PMV
SP
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
VI
Comments
Number of TRIPs=
>BLOCK Op Counter
Counter of operating hours
Accumulation of interrupted current Ph A
Accumulation of interrupted current Ph B
Accumulation of interrupted current Ph C
No. of 1st AR-cycle CLOSE commands,3pole
No. of higher AR-cycle CLOSE commands,3p
Sum Current Exponentiation Ph A to Ir^x
Sum Current Exponentiation Ph B to Ir^x
Sum Current Exponentiation Ph C to Ir^x
Residual Endurance Phase A
Residual Endurance Phase B
Residual Endurance Phase C
Number of mechanical Trips Phase A
Number of mechanical Trips Phase B
Number of mechanical Trips Phase C
Sum Squared Current Integral Phase A
Sum Squared Current Integral Phase B
Sum Squared Current Integral Phase C
2.23 Auxiliary Functions
2
t-procedure (only 7SJ64).
330