tTempLockOut: This is used to set the time delay for a temperature lockoutindication, given in s.tResetLevelAlm: This is used for the level alarm indication to reset after a set timedelay in s.tResetLevelLO: This is used for the level lockout indication to reset after a set timedelay in s.tResetTempLO: This is used for the temperature lockout indication to reset after aset time delay in s.tResetTempAlm: This is used for the temperature alarm indication to reset after a settime delay in s.18.4 Breaker monitoring SSCBR18.4.1 Identification GUID-0FC081B2-0BC8-4EB8-9529-B941E51F18EE v7Function description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberBreaker monitoring SSCBR - -18.4.2 Application GUID-45572680-3A39-4B3C-8639-4E4C5A95AA26 v10The circuit breaker maintenance is usually based on regular time intervals or thenumber of operations performed. This has some disadvantages because there couldbe a number of abnormal operations or few operations with high-level currentswithin the predetermined maintenance interval. Hence, condition-basedmaintenance scheduling is an optimum solution in assessing the condition of circuitbreakers.Circuit breaker contact travel timeAuxiliary contacts provide information about the mechanical operation, openingtime and closing time of a breaker. Detecting an excessive traveling time isessential to indicate the need for maintenance of the circuit breaker mechanism.The excessive travel time can be due to problems in the driving mechanism orfailures of the contacts.Circuit breaker statusMonitoring the breaker status ensures proper functioning of the features within theprotection relay such as breaker control, breaker failure and autoreclosing. Thebreaker status is monitored using breaker auxiliary contacts. The breaker status isindicated by the binary outputs. These signals indicate whether the circuit breakeris in an open, closed or error state.Section 18 1MRK 506 369-UEN BMonitoring778 Line distance protection REL670 2.2 IECApplication manual
