Name Values (Range) Unit Step Default DescriptiontTempLockOut 0.000 - 60.000 s 0.001 0.000 Time delay for temperture lockouttResetLevelAlm 0.000 - 60.000 s 0.001 0.000 Reset time delay for level alarmtResetLevelLO 0.000 - 60.000 s 0.001 0.000 Reset time delay for level lockouttResetTempLO 0.000 - 60.000 s 0.001 0.000 Reset time delay for temperture lockouttResetTempAlm 0.000 - 60.000 s 0.001 0.000 Reset time delay for temperture alarm15.3.6 Monitored dataPID-6951-MONITOREDDATA v5Table 385:SSIML Monitored dataName Type Values (Range) Unit DescriptionLEVEL REAL - - Level service valueTEMP REAL - deg Temperature of theinsulation medium15.3.7 Operation principle GUID-F4340B59-90D0-4EA7-9FD8-F21D425C884A v7Liquid medium supervision SSIML is used to monitor the oil level in thetransformer. Binary inputs of oil level SENLVLALM, SENLVLLO and oil levelsignal SENLEVEL are taken into account to initiate the alarm LVLALM and thelockout LVLLO. When SENLEVEL is less than LevelAlmLimit or binary signalfrom transformer SENLVLALM is high, the oil level indication alarm LVLALMwill be initiated. Similarly, if oil level input SENLEVEL is less than LevelLOLimitor binary signal from transformer SENLVLLO is high, the oil level indicationlockout LVLLO will be initiated.There may be sudden change in oil level for a very small time, for which thefunction need not to initiate any alarm. To avoid the intermittent alarm, two timedelays tLevelAlarm or tLevelLockOut have been included. If the oil level goesbelow the settings for more than these time delays, the corresponding alarmLVLALM or lockout LVLLO will be initiated. The SETLLO binary input is usedfor setting the liquid level lockout LVLLO. The LVLLO output retains the lastvalue until it is reset by using the binary input RESETLO. The binary inputBLKALM can be used for blocking the alarms, and the BLOCK input can blockboth alarms and the lockout indication.Temperature of the medium is available from the input signal of temperature. Thesignal is monitored to detect high temperature.When temperature input SENTEMP is above TempAlarmLimit, temperature alarmTEMPALM will be initiated. Similarly, if temperature input SENTEMP is aboveTempLOLimit, temperature lockout TEMPLO 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. To avoid the intermittentSection 15 1MRK 505 394-UEN AMonitoring538 Line differential protection RED650 2.2 IECTechnical manual
