EasyManua.ls Logo

ABB REJ 521 - REJ 521 Manual Abbreviations

ABB REJ 521
40 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
1MRS 752179-MUM
Earth-Fault Relay
Operator’s Manual
REJ 521
35
9. Abbreviations
CBFP Circuit-breaker failure protection
CPU Central processing unit
IDMT Inverse definite minimum time characteristic
IRF Internal relay fault
LCD Liquid Crystal Display
LED Light-emitting diode
HMI Human-Machine Interface
SGB Switchgroups for binary input
SGF Switchgroups for functions
SGR Switchgroups for output contacts

Related product manuals