350C FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Setpoint entry methods.........................................................................................................6 - 2
Common setpoints ..................................................................................................................6 - 3
Logic diagrams..........................................................................................................................6 - 4
Setting text abbreviations....................................................................................................6 - 4
Clock ...............................................................................................................................................6 - 6
Password security....................................................................................................................6 - 8
RS485 interface .......................................................................................................................6 - 11
Ethernet.......................................................................................................................................6 - 12
Modbus........................................................................................................................................6 - 12
IEC 60870-5-103 serial communication ......................................................................6 - 14
IEC60870-5-104 protocol....................................................................................................6 - 29
DNP communication .............................................................................................................6 - 30
IEC 61850 GOOSE communications...............................................................................6 - 44
Event recorder ...........................................................................................................................6 - 45
Transient recorder ...................................................................................................................6 - 46
Front panel ..................................................................................................................................6 - 47
Installation...................................................................................................................................6 - 48
Current sensing.........................................................................................................................6 - 49
Voltage sensing.........................................................................................................................6 - 50
Power system.............................................................................................................................6 - 51
Breaker..........................................................................................................................................6 - 51
User curve....................................................................................................................................6 - 52
FlexCurves™ ...............................................................................................................................6 - 52
TOC curves.................................................................................................................................6 - 56
Phase timed overcurrent protection .............................................................................6 - 63
Phase instantaneous overcurrent protection ...........................................................6 - 66
Ground/Sensitive Ground timed overcurrent protection.....................................6 - 68
Ground/Sensitive Ground instantaneous overcurrent protection...................6 - 71
Ground directional .................................................................................................................6 - 73
Neutral timed overcurrent protection...........................................................................6 - 78
Neutral instantaneous overcurrent protection ........................................................6 - 81
Neutral directional..................................................................................................................6 - 84
Negative sequence instantaneous overcurrent protection ...............................6 - 88
Phase undervoltage ..............................................................................................................6 - 90
Phase overvoltage..................................................................................................................6 - 94
Neutral overvoltage...............................................................................................................6 - 96
Negative sequence overvoltage......................................................................................6 - 98
Auxiliary undervoltage .........................................................................................................6 - 100
Auxiliary overvoltage.............................................................................................................6 - 103
Underfrequency.......................................................................................................................6 - 105
Overfrequency..........................................................................................................................6 - 108