ABB REF615 F - 11.3 Voltage based inverse definite minimum time characteristics; 11.4 Frequency measurement and protection; Section 12 Requirements for measurement transformers; 12.1 Current transformers

IDMT curve saturation of undervoltage protection...............838
Frequency measurement and protection........................................838
Measurement modes......................................................................839
Calculated measurements..............................................................841
Section 12 Requirements for measurement transformers..............843
Current transformers......................................................................843
Current transformer requirements for non-directional
overcurrent protection................................................................843
Current transformer accuracy class and accuracy limit
factor....................................................................................843
Non-directional overcurrent protection.................................844
Example for non-directional overcurrent protection..............845
Section 13 IED physical connections.............................................847
Protective earth connections..........................................................847
Binary and analog connections......................................................847
Communication connections..........................................................848
Ethernet RJ-45 front connection................................................848
Ethernet rear connections.........................................................849
EIA-232 serial rear connection..................................................849
EIA-485 serial rear connection..................................................849
Line differential protection communication connection..............850
Optical ST serial rear connection..............................................850
Communication interfaces and protocols..................................850
Rear communication modules...................................................851
COM0001-COM0014 jumper locations and connections.....855
COM0023 jumper locations and connections.......................858
COM0008 and COM0010 jumper locations and
connections..........................................................................863
COM0032-COM0034 jumper locations and connections.....866
Recommended third-party industrial Ethernet switches ...........869
Section 14 Technical data..............................................................871
Section 15 IED and functionality tests............................................877
Section 16 Applicable standards and regulations..........................881
Section 17 Glossary.......................................................................883
Table of contents
615 series 23
Technical Manual