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
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