SCL
XML-based substation description configuration language
defined by IEC 61850
SLD
Single-line diagram
SM
1. Single mode
2. Single-mode optical fiber
SMT
Signal Matrix tool in PCM600
SMV
Sampled measured values
SNTP
Simple Network Time Protocol
SOTF
Switch onto fault
ST
Connector type for glass fiber cable
SW
Software
Single-line diagram
Simplified notation for representing a three-phase power
system. Instead of representing each of three phases with
a separate line or terminal, only one conductor is
represented.
TCM
Trip-circuit monitoring
TCP
Transmission Control Protocol
TCP/IP
Transmission Control Protocol/Internet Protocol
TCS
Trip-circuit supervision
TLV
Type length value
Tx
Transmit/Transmitted
UDP
User datagram protocol
UTC
Coordinated universal time
VT
Voltage transformer
WAN
Wide area network
WHMI
Web human-machine interface
1MAC059074-MB A
Section 17
Glossary
615 series ANSI
1185
Technical Manual
Summary of Contents for Relion 615 series
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