
1MRS 751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
45
Power supply .............................................................................................. 11
Protocols
IEC 60870-5-103 ............................................................... 24, 28, 29, 48
LON ................................................................................... 24, 26, 29, 33
SPA ........................................................................ 24, 25, 27, 29, 33, 57
R
Rated values ................................................................................................12
Real-time clock ........................................................................................... 11
Relay Setting Tool ........................................................................................ 9
Requirements ................................................................................................ 8
Revisions .................................................................................................... 42
Rogowski coil .................................................................................12, 14, 15
S
Scaling factors ............................................................................................ 12
Self-supervision .......................................................................................... 22
Sensor ...............................................................................................7, 12, 30
Serial communication .....................................................................23, 24, 33
Service Pin ..................................................................................................38
Service pin ..................................................................................................24
Signalling output (SO) ................................................................................ 31
T
Temperature supervision ............................................................................ 12
Terminal connections .................................................................................38
Terminal diagram ....................................................................................... 34
Tests ............................................................................................................32
Trip-circuit supervision ........................................................................19, 31
V
Voltage transformer .................................................................................... 14
Содержание REX 521
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