ABB Relion 670 Series Applications Manual page 465

1MRK 511 401-UUS F
17.4.3.1 Setting procedure on the IED
The parameters for breaker monitoring (SSCBR) can be set via the local HMI or Protection and
Control Manager (PCM600).
Common base IED values for primary current (
SBase ) are set in Global base values for settings function GBASVAL.
(
GlobalBaseSel : It is used to select a GBASVAL function for reference of base values.
Operation : Enabled or Disabled .
IBase : Base phase current in primary A. This current is used as reference for current settings.
OpenTimeCorr : Correction factor for circuit breaker opening travel time.
CloseTimeCorr : Correction factor for circuit breaker closing travel time.
tTrOpenAlm : Setting of alarm level for opening travel time.
tTrCloseAlm : Setting of alarm level for closing travel time.
OperAlmLevel : Alarm limit for number of mechanical operations.
OperLOLevel : Lockout limit for number of mechanical operations.
CurrExponent : Current exponent setting for energy calculation. It varies for different types of
circuit breakers. This factor ranges from
AccStopCurr : RMS current setting below which calculation of energy accumulation stops. It is
given as a percentage of
ContTrCorr : Correction factor for time difference in auxiliary and main contacts' opening time.
AlmAccCurrPwr : Setting of alarm level for accumulated energy.
LOAccCurrPwr : Lockout limit setting for accumulated energy.
SpChAlmTime : Time delay for spring charging time alarm.
tDGasPresAlm : Time delay for gas pressure alarm.
tDGasPresLO : Time delay for gas pressure lockout.
Bay control REC670
Application manual
Since there is no current measurement in SAM600-IO, evaluation of the following
parameters are not possible in the circuit breaker condition monitoring function
(SSCBR):
• Circuit breaker status
• Remaining life of the circuit breaker
• Contact erosion estimation
• Circuit breaker contact travel time
Ensure that OPENPOS, CLOSEPOS, INVDPOS, CBLIFEAL, IPOWALPH, IPOWLOPH,
TRVTOPAL and TRVTCLAL signals are not used in SAM600–IO.
IBase .
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IBase ), primary voltage ( VBase ) and primary power
0.5 to 3.0 .
Section 17
Monitoring
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