ABB RELION Series Technical Manual page 802

Section 17
Glossary
796
PTP
RAM
RCA
RJ-45
RMS
ROM
RSTP
RTC
RTD
RTS
SAN
SBO
SCADA
SCL
Single-line diagram Simplified notation for representing a three-phase
SMT
SMV
SNTP
SOTF
ST
SW
TCP/IP
TCS
TLV
UTC
VT
WAN
WHMI
Precision Time Protocol
Random access memory
Also known as MTA or base angle. Characteristic
angle.
Galvanic connector type
Root-mean-square (value)
Read-only memory
Rapid spanning tree protocol
Real-time clock
Resistance temperature detector
Ready to send
Single attached node
Select-before-operate
Supervision, control and data acquisition
XML-based substation description configuration
language defined by IEC 61850
power system. Instead of representing each of three
phases with a separate line or terminal, only one
conductor is represented.
Signal Matrix tool in PCM600
Sampled measured values
Simple Network Time Protocol
Switch onto fault
Connector type for glass fiber cable
Software
Transmission Control Protocol/Internet Protocol
Trip-circuit supervision
Type length value
Coordinated universal time
Voltage transformer
Wide area network
Web human-machine interface
1MRS758755 A
REC615 and RER615
Technical Manual