ABB rec670 - Page 9

Operation principle.......................................................................... 108
Frequency reporting
................................................................... 110
Reporting filters
.......................................................................... 112
Scaling Factors for ANALOGREPORT channels....................... 113
PMU Report Function Blocks Connection Rules in PCM600
Application Configuration Tool (ACT)......................................... 115
Setting guidelines............................................................................ 121
Section 7 Differential protection........................................................ 127
High impedance differential protection, single phase HZPDIF (87)......127
Identification.................................................................................... 127
Application....................................................................................... 127
The basics of the high impedance principle............................... 129
Connection examples for high impedance differential protection.... 135
Connections for three-phase high impedance differential
protection....................................................................................135
Connections for 1Ph High impedance differential protection
HZPDIF (87)............................................................................... 136
Setting guidelines............................................................................ 137
Configuration.............................................................................. 138
Settings of protection function.................................................... 138
T-feeder protection..................................................................... 138
Tertiary reactor protection.......................................................... 142
Alarm level operation..................................................................145
Section 8 Current protection..............................................................147
Instantaneous phase overcurrent protection PHPIOC (50).................. 147
Identification.................................................................................... 147
Application....................................................................................... 147
Setting guidelines............................................................................ 148
Meshed network without parallel line..........................................149
Meshed network with parallel line...............................................151
Directional phase overcurrent protection, four steps
OC4PTOC(51_67)................................................................................ 153
Identification.................................................................................... 153
Application....................................................................................... 153
Setting guidelines............................................................................ 154
Settings for each step.................................................................156
Setting example..........................................................................160
Instantaneous residual overcurrent protection EFPIOC (50N)............. 165
Identification.................................................................................... 165
Table of contents
Bay control REC670 2.2 ANSI 3
Application manual