GE 869 Instruction Manual

Also see for 869: Instruction manual Communications guide

Contents

IV 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUALOutput Relay 2 (F4) programmed as Close.............................................................................. 4 - 102Auxiliary Output Relays .................................................................................................................... 4 - 104Output Relay 3 (F7) Start Inhibit .................................................................................................... 4 - 106Virtual Outputs ......................................................................................................................................4 - 106Analog Outputs .....................................................................................................................................4 - 107Protection ....................................................................................................................................... 4 - 108Motor Elements.....................................................................................................................................4 - 110Percent Differential ............................................................................................................................. 4 - 110Thermal Model (49).............................................................................................................................. 4 - 117Current Unbalance (46) ..................................................................................................................... 4 - 138Mechanical Jam (50LR) ..................................................................................................................... 4 - 143Undercurrent (37)................................................................................................................................. 4 - 146Loss of Excitation (40)......................................................................................................................... 4 - 149Overload Alarm..................................................................................................................................... 4 - 155Short Circuit ............................................................................................................................................ 4 - 157Ground Fault (50SG)............................................................................................................................ 4 - 160Acceleration Time ................................................................................................................................ 4 - 164Underpower (37P) ................................................................................................................................ 4 - 1672-Speed Motor.......................................................................................................................................4 - 1702-Speed Thermal Model.................................................................................................................... 4 - 1702-Speed Acceleration......................................................................................................................... 4 - 1712-Speed Undercurrent....................................................................................................................... 4 - 174Current Elements .................................................................................................................................4 - 176Inverse Time Overcurrent Curves................................................................................................. 4 - 176Percent of Load-To-Trip.................................................................................................................... 4 - 183Phase Time Overcurrent Protection (51P)................................................................................. 4 - 184Phase Instantaneous Overcurrent Protection (50P) ............................................................ 4 - 187Phase Directional Overcurrent Protection (67P).................................................................... 4 - 189Neutral Time Overcurrent Protection (51N) ............................................................................. 4 - 192Neutral Instantaneous Overcurrent Protection (50N)......................................................... 4 - 195Neutral Directional Overcurrent Protection (67N) ................................................................ 4 - 198Ground Time Overcurrent Protection (51G) ............................................................................. 4 - 203Ground Instantaneous Overcurrent Protection (50G)......................................................... 4 - 205Negative Sequence Instantaneous Overcurrent Protection (50_2).............................. 4 - 207Voltage Elements .................................................................................................................................4 - 210Phase Reversal (47) ............................................................................................................................. 4 - 211Undervoltage Curves ......................................................................................................................... 4 - 213Phase Undervoltage Protection (27P)......................................................................................... 4 - 214Phase Overvoltage Protection (59P)............................................................................................ 4 - 217Auxiliary Undervoltage (27X) .......................................................................................................... 4 - 220Auxiliary Overvoltage Protection (59X) ...................................................................................... 4 - 223Neutral Overvoltage Protection (59N) ........................................................................................ 4 - 226Negative Sequence Overvoltage Protection (59_2)............................................................. 4 - 229Volts per Hertz (24) .............................................................................................................................. 4 - 231Impedance Elements .........................................................................................................................4 - 236Out-of-step (78)..................................................................................................................................... 4 - 238Power Elements ....................................................................................................................................4 - 243Directional Power (32)........................................................................................................................ 4 - 244Reactive Power (40Q) ......................................................................................................................... 4 - 249Frequency Elements...........................................................................................................................4 - 252Underfrequency (81U) ....................................................................................................................... 4 - 252Overfrequency (81O) .......................................................................................................................... 4 - 255Frequency Rate of Change (81R).................................................................................................. 4 - 258Monitoring...................................................................................................................................... 4 - 262Breaker......................................................................................................................................................4 - 262Trip and Close Circuit Monitoring ................................................................................................. 4 - 262Breaker Arcing Current...................................................................................................................... 4 - 270Breaker Health ...................................................................................................................................... 4 - 273