FANOX SIL-A A Series, User Manual

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1 RECEPTION, HANDLING, INSTALLATION ............................................................... 5
1.1 Unpackaging ............................................................................................................. 5
1.2 Reception of relays ................................................................................................... 5
1.3 Handling electronic equipment ................................................................................ 5
1.4 Installation, commissioning and service ................................................................. 6
1.5 Storage ...................................................................................................................... 6
1.6 Recycling................................................................................................................... 6
2 DIMENSIONS AND CONNECTION DIAGRAMS ........................................................ 7
2.1 SILA with standard current terminals ...................................................................... 7
2.1.1 Front view .................................................................................................................. 7
2.1.2 Case dimensions....................................................................................................... 8
2.1.3 Connection diagrams ................................................................................................ 9
2.1.3.1 Analog connections .................................................................................................. 9
2.1.3.2 Digital connections ................................................................................................. 10
2.1.4 Terminals ................................................................................................................. 11
2.2 SILA with short-circuitable current terminals ........................................................ 12
2.2.1 Front view ................................................................................................................ 12
2.2.2 Case dimensions..................................................................................................... 13
2.2.3 Connection diagrams .............................................................................................. 14
2.2.3.1 Analogic connections ............................................................................................. 14
2.2.3.2 Digital connections ................................................................................................. 15
2.2.4 Terminals ................................................................................................................. 16
3 DESCRIPTION ......................................................................................................... 17
3.1 Introduction ............................................................................................................. 17
3.2 Description .............................................................................................................. 17
3.3 Functional diagram ................................................................................................. 22
3.5. Selection & ordering Codes ................................................................................... 23
3.4 Phase CT and neutral CT selection ........................................................................ 24
4 PROTECTION FUNCTIONS ..................................................................................... 24
4.1 Function 50. Instantaneous phase overcurrent ..................................................... 24
4.2 Function SOTF. Switch On To Fault ....................................................................... 25
4.3 Function 51. Inverse time phase overcurrent ........................................................ 26
4.4 Function 50G. Instantaneous measured neutral overcurrent ............................... 27
4.5 Function 50N. Instantaneous calculated neutral overcurrent ............................... 27
4.6 Function 51G. Inverse time measured neutral overcurrent .................................. 28
4.7 Function 51N. Inverse time calculated neutral overcurrent .................................. 29
4.8 Function 46. Phase balance current protection..................................................... 30
4.9 Function 46BC. Broken conductor detection ........................................................ 31
4.10 Function 49. Thermal Overload .............................................................................. 31
4.10.1 Thermal overload measurement evolution graphic ............................................... 32