Sepam - HV/MV Protection and control units (ENG) - Trinet

Use - commissioningCommissioning (cont’d)Time delay settingsThe time delays are factory-set by default to 200 ms.In the chart below, if the function is not used, setting of the related time delaysis unnecessary.time delays functiontrip circuit or open / closed matching supervisionT1 = 2 s (2) time delay for recovery of open/closed information upon changes in device positionopen / close controlT2 = 0.2 s contactor diagram: tripping order durationlogic discriminationT3 = 0.2 s inhibition of blocking input transmission after trippingopen / close control by telecommunicationT5 = 0.2 s duration of tripping order pulse transmitted via remote controlT6 = 0.2 s duration of closing order pulse transmitted via remote control(T6 is also used by the restart function)T16 = 0.2 s confirmation of pressure switch faultSepam 2000 : motorT4 load shedding: external load shedding order time delay (input I12)T6 = 0.2 s restart: duration of closing order pulse transmitted via a restart orderT8restart: maximum duration of voltage sag enabling restartT9restart: restart staggering time delaySepam 2000 : capacitorT7after tripping, duration of reclosing inhibition(allows correct discharging of capacitors prior to re-energizing)T21capacitor 1 opening time delay(allows staggered opening of capacitor switches)T22capacitor 2 opening time delay(allows staggered opening of capacitor switches)T23capacitor 3 opening time delay(allows staggered opening of capacitor switches)T24circuit breaker opening time delay(the breaker only opens after the straggered opening of the capacitors)T25duration of capacitor 1 tripping pulseT26duration of capacitor 2 tripping pulseT27duration of capacitor 3 tripping pulseT28duration of capacitor 1 closing pulseT29duration of capacitor 2 closing pulseT30duration of capacitor 3 closing pulseT31after tripping, duration of capacitor 1 inhibitionT32after tripping, duration of capacitor 2 inhibitionT33after tripping, duration of capacitor 3 inhibitionT34time delay for recovery of capacitor 1 switch open/closed informationT35time delay for recovery of capacitor 2 switch open/closed informationT36time delay for recovery of capacitor 3 switch open/closed informationSepam 2000 : busbarsT7 = 10 s time during which instantaneous dF/dt data is maintainedwhen load shedding with underfrequency only is chosen (KP33 = 1)T8maintain output O32 for synchro-check(set the time delay to several secondes if the output is not used)T10maintain closing request for synchro-checkT24duration of load shedding pulses on O31T25duration of load shedding pulses on O32T26duration of load shedding pulses on O33T27duration of load shedding pulses on O34Sepam 2000 : substationT4 = 1 stime delay after closing (used to display transient phenomena)T25 = 0.2 s duration of tripping pulseT26 = 0.2 s duration of closing pulseT10recloser function: disengaging time delayT11 recloser function: isolation time delay linked to cycle 1T12 recloser function: isolation time delay linked to cycle 2T13 recloser function: isolation time delay linked to cycle 3T14 recloser function: isolation time delay linked to cycle 4T15recloser function: inhibition time delaySepam 2000 : generatorT10maintain closing request for synchro-check(1)This time delay may be increased to mask switching problems.2/22 Installation - Use - General characteristics - Testing