Siemens siprotec SJ62, Руководство пользователя

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2.23 Auxiliary Functions
330
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.
2P-Procedure 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 I r (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 I sc (parameter
262 Isc-52
).
For the procedure to operate correctly, the time response of the circuit breaker must
be specified in parameters
266 T 52 BREAKTIME
and
267 T 52 OPENING
.
I
2
t-Procedure Parameter
172 52 B.WEAR MONIT
is set to activate the I
2
t-procedure (only 7SJ64).
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.
2.23.3.4 Information List
No. Information Type of In-
formation
Comments
- #of TRIPs= PMV Number of TRIPs=
409 >BLOCK Op Count SP >BLOCK Op Counter
1020 Op.Hours= VI Counter of operating hours
1021
Σ
Ia = VI Accumulation of interrupted current Ph A
1022
Σ
Ib = VI Accumulation of interrupted current Ph B
1023
Σ
Ic = VI Accumulation of interrupted current Ph C
2896 79 #Close1./3p= VI No. of 1st AR-cycle CLOSE commands,3pole
2898 79 #Close2./3p= VI No. of higher AR-cycle CLOSE commands,3p
16001
Σ
I^x A= VI Sum Current Exponentiation Ph A to Ir^x
16002
Σ
I^x B= VI Sum Current Exponentiation Ph B to Ir^x
16003
Σ
I^x C= VI Sum Current Exponentiation Ph C to Ir^x
16006 Resid.Endu. A= VI Residual Endurance Phase A
16007 Resid.Endu. B= VI Residual Endurance Phase B
16008 Resid.Endu. C= VI Residual Endurance Phase C
16011 mechan.TRIP A= VI Number of mechanical Trips Phase A
16012 mechan.TRIP B= VI Number of mechanical Trips Phase B
16013 mechan.TRIP C= VI Number of mechanical Trips Phase C
16014
Σ
I^2t A= VI Sum Squared Current Integral Phase A
16015
Σ
I^2t B= VI Sum Squared Current Integral Phase B
16016
Σ
I^2t C= VI Sum Squared Current Integral Phase C