ABB RELION Series Technical Manual page 801

1MRS758755 A
REC615 and RER615
Technical Manual
IRF
IRIG-B
LAN
LC
LCD
LE
LED
LHMI
MAC
MCB
MMS
Modbus
MV
NC
P2P
PC
PCM600
Peak-to-peak
Peak-to-peak with
peak backup
PLC
PPS
PRP
1. Internal fault
2. Internal relay fault
Inter-Range Instrumentation Group's time code format
B
Local area network
Connector type for glass fiber cable, IEC 61754-20
Liquid crystal display
Light Edition
Light-emitting diode
Local human-machine interface
Media access control
Miniature circuit breaker
1. Manufacturing message specification
2. Metering management system
A serial communication protocol developed by the
Modicon company in 1979. Originally used for
communication in PLCs and RTU devices.
Medium voltage
Normally closed
peer-to-peer
1. Personal computer
2. Polycarbonate
Protection and Control IED Manager
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.
A measurement principle similar to the peak-to-peak
mode but with the function starting on two conditions:
the peak-to-peak value is above the set start current or
the peak value is above two times the set start value
Programmable logic controller
Pulse per second
Parallel redundancy protocol
Section 17
Glossary
795