ABB REL 356

ABB REL 356 Current Differential Protection
6-4
Computer Communications
Table 6-2. RS-PONI Dip Switch Settings
Dip Switch Pole
Port Data
Rate
123bps
000300
0 0 1 1200
0 1 0 2400
0 1 1 4800
1 0 0 9600
1 0 1 19200
1 1 0 1200
1 1 1 1200
Dip Switch Pole Auto Answer
Rings
45
0 0 none
014
108
1112
NOTE: Turn the power OFF and ON, anytime
Dip Switch changes are made.
Fault Record Data Definitions
The Oscillographic and Recording Program (OSCAR) under selection: “Load Screen Layout File” of the main menu offers
the following display files for REL 356.
Analog Signals
The following signals are displayed on the main OSCAR screen following a download of both analog and digital signals
from the REL 356 relay:
la phase A current
lb phase B current
lc phase C current
-3I0 zero sequence current (note the negative sing)
Vag phase A to ground voltage
Vbg phase B to ground voltage
Vcg phase C to ground votlage
It local current after sequence filter
Vflr real part of local It current
These additional analog signals are displayed by F1 - ANA MENU:
Vfli imaginary part of local It current
Vfrr* real part of remote It current
Vfri* imaginary part of remote It current
Op operating value
Res restraint value