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
