PCM600
Protection and Control IED Manager
PGU
Power generating unit
PLC
Programmable logic controller
PPS
Pulse per second
PRP
Parallel redundancy protocol
Peak-to-peak
1. The amplitude of a waveform between its maximum
positive value and its maximum negative value
2. A measurement principle where the measurement
quantity is made by calculating the average from the
positive and negative peak values without including the
DC component. The peak-to-peak mode allows
considerable CT saturation without impairing the
performance of the operation.
Peak-to-peak with
peak backup
A measurement principle similar to the peak-to-peak
mode but with the function picking up on two conditions:
the peak-to-peak value is above the set pickup current or
the peak value is above two times the set pickup value
RAM
Random access memory
RCA
Also known as MTA or base angle. Characteristic angle.
RED615
Line differential protection and control relay
REF615
Feeder protection and control relay
REM615
Motor protection and control relay
RET615
Transformer protection and control relay
RJ-45
Galvanic connector type
RMS
Root-mean-square (value)
ROM
Read-only memory
RSTP
Rapid spanning tree protocol
RTC
Real-time clock
RTD
Resistance temperature detector
RTS
Ready to send
Rx
Receive/Received
SAN
Single attached node
SBO
Select-before-operate
SCADA
Supervision, control and data acquisition
Section 17
1MAC059074-MB A
Glossary
1184
615 series ANSI
Technical Manual
Summary of Contents for Relion 615 series
Page 1: ... RELION PROTECTION AND CONTROL 615 series ANSI Technical Manual ...
Page 2: ......
Page 39: ...Section 17 Glossary 1181 Table of contents 615 series ANSI 33 Technical Manual ...
Page 40: ...34 ...
Page 64: ...58 ...
Page 216: ...210 ...
Page 884: ...878 ...
Page 1038: ...1032 ...
Page 1136: ...1130 ...
Page 1172: ...1166 ...
Page 1180: ...1174 ...
Page 1186: ...1180 ...
Page 1192: ...1186 ...
Page 1193: ...1187 ...
Page 1194: ......
Page 1195: ......