Sices D-PRO, Technical Manual

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iv D-PRO Protection relay Technical Manual
5.
“Si.Mo.Ne” System ................................................................................................ 26
6. Operating sequence .............................................................................................. 27
6.1 Operating mode .................................................................................................. 27
6.2 Inhibition to the protection intervention ............................................................... 27
7. Faults ...................................................................................................................... 29
7.1 Silence the horn .................................................................................................. 29
7.2 Identify the anomaly............................................................................................ 30
7.3 Cancel the anomaly ............................................................................................ 30
7.4 Signals ................................................................................................................ 30
7.5 Protections Override ........................................................................................... 30
7.6 Faults connected to digital inputs ....................................................................... 31
7.7 Faults list ............................................................................................................ 31
37
– Low battery voltage threshold (from measuring) ................................................... 31
38
– High battery voltage threshold (from measuring) .................................................. 31
561
– Minimum voltage (27) ......................................................................................... 32
562
– Minimum voltage (27T) ....................................................................................... 32
563
– Maximum reactive power (32P) .......................................................................... 33
564
– Maximum reactive power (32Q) .......................................................................... 34
565
– Negative sequence (46) ..................................................................................... 34
566
– Wrong phases sequence (47) ............................................................................. 34
567
– Short circuit (50) ................................................................................................. 35
568
– Short circuit on neutral (50N) .............................................................................. 35
569
– Short circuit with restrained overcurrent (50V) .................................................... 35
570
– Maximum current (51) ........................................................................................ 36
571
– Maximum current on neutral (51N) ..................................................................... 36
572
– Maximum current with restrained overcurrent (51V) ........................................... 36
573
– Maximum voltage (59) ........................................................................................ 39
574
– Maximum homopolar voltage (59N) .................................................................... 40
575
– Minimum frequency (81U) .................................................................................. 40
576
– Maximum frequency (81O) ................................................................................. 40
577
– Maximum genset differential current (87G) ........................................................ 41
578
– Maximum transformer differential current (87T) .................................................. 41
579
– Power reverse (32RP) ........................................................................................ 43
580
– Reactive power reverse / Loss of excitation (32RQ/40) ...................................... 43
581
– Restricted earth fault / Maximum differential current (64) ................................... 44
252
– CAN-BUS 2 Expansion modules missing (EXBUS) ............................................ 44
254
– Input doubled on CAN-BUS 2 (EXBUS) ............................................................. 44
701...742 - Generic faults related to the digital inputs................................................... 44
301...328 - Generic faults related to the analogue inputs ............................................. 44
8. Other functions ...................................................................................................... 45
8.1 Parameters alternative configurations ................................................................ 45
8.2 Clock ................................................................................................................... 45