Section 20
Glossary
AC
Alternating current
ACC
Actual channel
ACT
Application configuration tool within PCM600
A/D converter
Analog-to-digital converter
ADBS
Amplitude deadband supervision
AI
Analog input
ANSI
American National Standards Institute
AR
Autoreclosing
ASCT
Auxiliary summation current transformer
ASD
Adaptive signal detection
ASDU
Application service data unit
AWG
American Wire Gauge standard
BBP
Busbar protection
BFOC/2,5
Bayonet fibre optic connector
BFP
Breaker failure protection
BI
Binary input
BOS
Binary outputs status
BR
External bistable relay
BS
British Standards
CB
Circuit breaker
CCITT
Consultative Committee for International Telegraph and
Telephony. A United Nations-sponsored standards body within
the International Telecommunications Union.
CCVT
Capacitive Coupled Voltage Transformer
Class C
Protection Current Transformer class as per IEEE/ ANSI
CMPPS
Combined megapulses per second
CMT
Communication Management tool in PCM600
CO cycle
Close-open cycle
1MRK 511 287-UUS A
Section 20
Glossary
685
Technical manual
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