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Switch Function Default setting
SGB1...5/18 CB position open 0
SGB1...5/19 CB position closed 0
SGB1...5/20 External AR initiation by the digital input signal 0
ΣSGB1...5 0
SGR1...SGR8
The start, trip and alarm signals from the protection stages, the signals from the
auto-reclose function, and the external trip signal are routed to the output contacts
with the switches of switchgroups SGR1...SGR8.
The signals are routed to PO1...PO3 with the switches of switchgroup SGR1...SGR3
and to SO1...SO5 with those of SGR4...SGR8.
The matrix below can be of help when making the wanted selections. The start, trip
and alarm signals from the protection stages and the external trip signal are
combined with the output contacts by encircling the wanted intersection point. Each
intersection point is marked with a switch number, and the corresponding weighting
factor of the switch is shown to the right in the matrix. The switchgroup checksum is
obtained by vertically adding the weighting factors of all the selected switches of the
switchgroup.
The trip lockout signal is always routed to PO3.
The trip signal from CBFP is always routed to PO2.
The external fault warning is always routed to SO2.
Feeder Protection Relay
Technical Reference Manual
REF 610REF 610
1MRS755310
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