When temperature input TEMP is greater than TempAlarmLimit, then temperature
alarm TEMP_ALM will be initiated. Similarly, if temperature input TEMP is greater
than TempLOLimit, then TEMP_LO will be initiated.
There may be sudden change in temperature of the medium for a very small time, for
which the function need not to initiate any alarm. That is why two time delays
tTempAlarm or tTempLockOuthave been included. If the temperature goes above the
settings for more than these time delays, then only the corresponding alarm
TEMP_ALM or lockout TEMP_LO will be initiated. The SET_T_LO binary input is
used for setting the temperature lockout. The TEMP_LO output retains the last value
until it is reset by using the binary input RESET_LO. Hysteresis type comparators
have been used with the setting for relative and absolute hysteresis. The binary input
BLK_ALM can be used for blocking the alarms, and the BLOCK input can block both
alarms and the lockout indication.
16.3.7 Technical data
Table 656: SSIMLTechnical data
Function Range or value Accuracy
Oil alarm level 1.00-100.00 ±10.0% of set value
Oil lockout level 1.00-100.00 ±10.0% of set value
Temperature alarm level -40.00-200.00 ±2.5% of set value
Temperature lockout level -40.00-200.00 ±2.5% of set value
Time delay for oil alarm (0.000-60.000) s ±0.2% or ±250ms whichever is
greater
Reset time delay for oil alarm (0.000-60.000) s ±0.2% or ±250ms whichever is
greater
Time delay for oil lockout (0.000-60.000) s ±0.2% or ±250ms whichever is
greater
Time delay for temperature
alarm
(0.000-60.000) s ±0.2% or ±250ms whichever is
greater
Reset time delay for
temperature alarm
(0.000-60.000) s ±0.2% or ±250ms whichever is
greater
Time delay for temperature
lockout
(0.000-60.000) s ±0.2% or ±250ms whichever is
greater
16.4 Breaker monitoring SSCBR
16.4.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Breaker monitoring SSCBR - -
Section 16 1MRK502052-UEN B
Monitoring
896
Technical manual
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