137
8.
Abbreviations
Abbreviation
Description
ASCII
American Standard Code for Information Interchange
CBFAIL
Circuit-breaker failure protection
CD
Change detect
CPU
Central Processing Unit
DI
Digital input
EEPROM
Electrically erasable programmable read-only memory
EMC
Electromagnetic compatibility
FR
Fault Record
GI
General interrogation
HMI
Human-Machine Interface
IDMT
Inverse Definite Minimum Time characteristic
IRF
Internal relay fault
LCD
Liquid crystal display
LED
Light-Emitting Diode
MSB
Most significant bit
PLC
Programmable Logical Controller
RTU
Remote terminal unit
SGB
Switchgroup for digital inputs
SPA
Data communication protocol developed by ABB
TCS
Trip-Circuit Supervision
VT
Voltage transformer
1MRS755972
Voltage Relay
Technical Reference Manual - ANSI Version
REU 610
Содержание REU 610
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