14.12 Insulation liquid monitoring function SSIML (71)14.12.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberInsulation liquid monitoring function SSIML - 7114.12.2 ApplicationInsulation liquid monitoring function (SSIML ,71) is used for monitoring the circuitbreaker condition. Proper arc extinction by the compressed oil in the circuit breaker is veryimportant. When the level becomes too low, compared to the required value, the circuitbreaker operation is blocked to minimize the risk of internal failures. Binary informationbased on the oil level in the circuit breaker is used as input signals to the function. Inaddition to that, the function generates alarms based on received information.14.13 Circuit breaker condition monitoring SSCBR14.13.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberCircuit breaker condition monitoring SSCBR - -14.13.2 ApplicationSSCBR includes different metering and monitoring subfunctions.Circuit breaker statusCircuit breaker status monitors the position of the circuit breaker, that is, whether thebreaker is in an open, closed or intermediate position.Circuit breaker operation monitoringThe purpose of the circuit breaker operation monitoring is to indicate that the circuitbreaker has not been operated for a long time. The function calculates the number of daysthe circuit breaker has remained inactive, that is, has stayed in the same open or closedstate. There is also the possibility to set an initial inactive day.1MRK 506 334-UUS A Section 14Monitoring451Application manual
