ABB REB 551-C4 2.5 Series Operator's Manual page 12

Protect breaker protection and control terminal for 1 1/2 breaker systems
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Introduction to the operator's manual
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Institute of Electrical and Electronics Engineers
A network technology standard that provides 100 Mbits/s on twist-
ed-pair or optical fiber cable
PCI Mezzanine Card (PMC) standard for local bus modules. Refer-
ences the CMC (IEEE P1386, also known as Common Mezzanine
Card) standard for the mechanics and the PCI specifications from
the PCI SIG (Special Interest Group) for the electrical
Electro magnetic force
Intelligent gas insulated switchgear
Degrees of protection provided by enclosures (IP code) according
to IEC 60529
International Telecommunications Union
Local area network
Liquid chrystal display
Local detection device
Light emitting diode
LON network tool
Local operating network
Miniature circuit breaker
Main processing module
Multifunction vehicle bus. Standardized serial bus originally devel-
oped for use in trains
Pulse code modulation
Process interface for sensors & actuators
Permissive overreach transfer trip
Bus or LAN used at the process level, that is, in near proximity to
the measured and/or controlled components
Parameter setting tool
Potential transformer or voltage transformer ratio
Permissive underreach transfer trip
Synchrocheck relay, COMBIFLEX
Relay characteristic angle
Evaluation software
Resistance for phase-to-phase faults
Resistance for phase-to-earth faults
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