Insulation Liquid Monitoring Function Ssiml (71) - ABB REC650 Applications Manual

1MRK 511 286-UUS A
12.12
12.12.1
12.12.2
12.13
12.13.1
12.13.2
Application manual

Insulation liquid monitoring function SSIML (71)

Identification
Function description
Insulation liquid monitoring function
Application
Insulation liquid monitoring function (SSIML ,71) is used for monitoring the circuit
breaker condition. Proper arc extinction by the compressed oil in the circuit breaker is very
important. When the level becomes too low, compared to the required value, the circuit
breaker operation is blocked to minimize the risk of internal failures. Binary information
based on the oil level in the circuit breaker is used as input signals to the function. In
addition to that, the function generates alarms based on received information.
Circuit breaker condition monitoring SSCBR
Identification
Function description
Circuit breaker condition monitoring
Application
SSCBR includes different metering and monitoring subfunctions.
Circuit breaker status
Circuit breaker status monitors the position of the circuit breaker, that is, whether the
breaker is in an open, closed or intermediate position.
Circuit breaker operation monitoring
The purpose of the circuit breaker operation monitoring is to indicate that the circuit
breaker has not been operated for a long time. The function calculates the number of days
the circuit breaker has remained inactive, that is, has stayed in the same open or closed
state. There is also the possibility to set an initial inactive day.
IEC 61850 IEC 60617
identification identification
SSIML -
IEC 61850 IEC 60617
identification identification
SSCBR -
Section 12
Monitoring
ANSI/IEEE C37.2
device number
71
ANSI/IEEE C37.2
device number
-
307