ABB REG670 - Page 20

Functionality ............................................................................. 557
Function block .......................................................................... 558
Signals.......................................................................................558
Settings......................................................................................559
Monitored data...........................................................................560
Operation principle.................................................................... 560
Section 11 Multipurpose protection................................................565
General current and voltage protection CVGAPC.......................... 565
Identification.............................................................................. 565
Functionality.............................................................................. 565
Inadvertent generator energization...................................... 565
Function block........................................................................... 566
Signals.......................................................................................566
Settings......................................................................................568
Monitored data...........................................................................575
Operation principle.................................................................... 576
Measured quantities within CVGAPC...................................576
Base quantities for CVGAPC function..................................578
Built-in overcurrent protection steps.....................................578
Built-in undercurrent protection steps...................................583
Built-in overvoltage protection steps.................................... 584
Built-in undervoltage protection steps.................................. 584
Inadvertent generator energizing......................................... 584
Logic diagram.......................................................................586
Technical data........................................................................... 591
Section 12 System protection and control......................................595
Multipurpose filter SMAIHPAC....................................................... 595
Identification.............................................................................. 595
Functionality.............................................................................. 595
Function block........................................................................... 595
Signals.......................................................................................595
Settings......................................................................................596
Operation principle.................................................................... 596
Filter calculation example..........................................................600
Section 13 Secondary system supervision.....................................603
Current circuit supervision CCSSPVC............................................603
Identification.............................................................................. 603
Functionality.............................................................................. 603
Function block........................................................................... 603
Signals.......................................................................................604
Settings......................................................................................604
Table of contents
14
Technical manual