Abbreviations - ABB REF 610 Operator's Manual

1MRS 755539
9.
Feeder Protection Relay
Operator's Manual - ANSI Version

Abbreviations

ANSI American National Standards Institute
ASCII American Standard Code for Information Interchange
CBFP Circuit-breaker failure protection
CPU Central processing unit
CT Current transformer
DI Digital Input
HMI Human-Machine Interface
IDMT Inverse definite minimum time characteristic
IEC International Electrotechnical Commission
IRF Internal relay fault
LCD Liquid Crystal Display
LED Light-emitting diode
PC Personal computer
PO1, PO2, PO3 Trip outputs
RTU Remote Terminal Unit
SGB Switchgroup for digital inputs
SGF Switchgroup for functions
SGL Switchgroup for LEDs
SGR Switchgroup for output contacts
SO1, SO2 Non-trip outputs
TCS Trip-circuit supervision
REF 610
49