COMTRADE Standard Common Format for Transient Data Exchange format
for Disturbance recorder according to IEEE/ANSI C37.111,
1999 / IEC60255-24
Contra-directional Way of transmitting G.703 over a balanced line. Involves four
twisted pairs of with two are used for transmitting data in both
directions, and two pairs for transmitting clock signals
CPU Central processor unit
CR Carrier receive
CRC Cyclic redundancy check
CS Carrier send
CT Current transformer
CVT or CCVT Capacitive voltage transformer
DAR Delayed auto-reclosing
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
DFT Discrete Fourier transform
DIP-switch Small switch mounted on a printed circuit board
DLLB Dead line live bus
DNP Distributed Network Protocol as per IEEE/ANSI Std. 1379-2000
DR Disturbance recorder
DRAM Dynamic random access memory
DRH Disturbance report handler
DSP Digital signal processor
DTT Direct transfer trip scheme
EHV network Extra high voltage network
EIA Electronic Industries Association
EMC Electro magnetic compatibility
EMF Electro motive force
EMI Electro magnetic interference
EnFP End fault protection
Section 15 1MRK506276-UUS B
Glossary
106
Operator's manual
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