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
Codirectional Way of transmitting G.703 over a balanced line. Involves two twisted pairs
making it possible to transmit information in both directions
COM Command
COMTRADE Standard Common Format for Transient Data Exchange format for
Disturbance recorder according to IEEE/ANSI C37.111, 1999 / IEC 60255-24
Contra-directional Way of transmitting G.703 over a balanced line. Involves four twisted pairs,
two of which are used for transmitting data in both directions and two for
transmitting clock signals
COT Cause of transmission
CPU Central processing unit
CR Carrier receive
CRC Cyclic redundancy check
CROB Control relay output block
CS Carrier send
CT Current transformer
CU Communication unit
CVT or CCVT Capacitive voltage transformer
DAR Delayed autoreclosing
DARPA Defense Advanced Research Projects Agency (The US developer of the
TCP/IP protocol etc.)
DBDL Dead bus dead line
DBLL Dead bus live line
DC Direct current
DFC Data flow control
DFT Discrete Fourier transform
DHCP Dynamic Host Configuration Protocol
DIP-switch Small switch mounted on a printed circuit board
DI Digital input
DLLB Dead line live bus
DNP Distributed Network Protocol as per IEEE Std 1815-2012
DR Disturbance recorder
DRAM Dynamic random access memory
DRH Disturbance report handler
DSP Digital signal processor
DTT Direct transfer trip scheme
Section 27 1MRK 502 066-UUS B
Glossary
1418
Technical manual
To Next Page
Loading...
