ABB REF 610 User Manual

65
9. Abbreviations
Abbreviation Description
ANSI American National Standards Institute
AR Auto reclosure
ASCII American Standard Code for Information Interchange
CB Circuit-breaker
CBFAIL 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
IED Intelligent electronic device
IRF Internal relay fault
LCD Liquid crystal display
LED Light-emitting diode
PC Personal computer
PO Power output, process object
RTU Remote terminal unit
SGB Switchgroup for digital inputs
SGF Switchgroup for functions
SGL Switchgroup for LEDs
SGR Switchgroup for output contacts
SO Signal output
SPA Data communication protocol developed by ABB
TCS Trip-circuit supervision
Feeder Protection Relay
Operator's Manual - ANSI Version
REF 610REF 610
1MRS755539

ABB REF 610 Specifications

General

Brand	ABB
Model	REF 610
Category	Relays
Language	English