ABB Relion 670 Series Applications Manual page 9

1MRK 511 401-UEN Rev. K
7.1.3.1
7.1.3.2
7.1.4 Setting guidelines...................................................................................................................121
7.1.4.1
7.1.4.2
7.1.4.3
7.1.4.4
7.1.4.5
Section 8 Current protection..................................................................................... 127
8.1 Instantaneous phase overcurrent protection PHPIOC .....................................................127
8.1.1 Identification........................................................................................................................... 127
8.1.2 Application............................................................................................................................... 127
8.1.3 Setting guidelines...................................................................................................................127
8.1.3.1
8.1.3.2
8.2 Directional phase overcurrent protection, four steps OC4PTOC................................... 131
8.2.1 Identification........................................................................................................................... 131
8.2.2 Application............................................................................................................................... 131
8.2.3 Setting guidelines...................................................................................................................132
8.2.3.1
8.2.3.2
8.3 Instantaneous residual overcurrent protection EFPIOC ................................................. 140
8.3.1 Identification.......................................................................................................................... 140
8.3.2 Application.............................................................................................................................. 140
8.3.3 Setting guidelines.................................................................................................................. 140
8.4 Directional residual overcurrent protection, four steps EF4PTOC ............................... 143
8.4.1 Function revision history...................................................................................................... 143
8.4.2 Identification...........................................................................................................................143
8.4.3 Application...............................................................................................................................143
8.4.4 Setting guidelines.................................................................................................................. 145
8.4.4.1
8.4.4.2
8.4.4.3
8.4.4.4
8.4.4.5
8.4.4.6
8.4.4.7
8.5 Four step directional negative phase sequence overcurrent protection NS4PTOC ..155
8.5.1 Function revision history...................................................................................................... 155
8.5.2 Identification...........................................................................................................................155
8.5.3 Application...............................................................................................................................156
8.5.4 Setting guidelines...................................................................................................................157
8.5.4.1
8.5.4.2
8.6 Sensitive directional residual overcurrent and power protection SDEPSDE ...............161
Bay control REC670
Application manual
Connections for three-phase high impedance differential protection..................119
Connections for 1Ph High impedance differential protection HZPDIF..................120
Configuration..................................................................................................................... 121
Settings of protection function..................................................................................... 121
T-feeder protection...........................................................................................................121
Tertiary reactor protection............................................................................................. 124
Alarm level operation....................................................................................................... 126
Meshed network without parallel line...........................................................................128
Meshed network with parallel line.................................................................................130
Settings for each step......................................................................................................133
Setting example................................................................................................................ 136
Common settings for all steps...................................................................................... 145
nd
2 harmonic restrain....................................................................................................... 147
Parallel transformer inrush current logic..................................................................... 147
Switch onto fault logic.....................................................................................................148
Settings for each step (x = 1, 2, 3 and 4)...................................................................... 148
Line application example................................................................................................ 150
Phase selection element..................................................................................................154
Settings for each step .....................................................................................................157
Common settings for all steps...................................................................................... 160
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