Tripping Logic Phase Segregated Output Sptptrc; Identification; Application - ABB REQ650 Applications Manual

1MRK 505 291-UEN A
11.2
11.2.1
11.2.2
Application manual
Operation: Sets the mode of operation. Off switches the function off. The normal
selection is On.
TripLockout: Sets the scheme for lock-out. Off only activates the lock-out output. On
activates the lock-out output and latches the output TRIP. The normal selection is
Off.
AutoLock: Sets the scheme for lock-out. Off only activates lock-out through the input
SETLKOUT. On additonally allows activation through the trip function itself. The
normal selection is Off.
tTripMin: Sets the required minimum duration of the trip pulse. It should be set to
ensure that the breaker is tripped correctly. Normal setting is 0.150s.

Tripping logic phase segregated output SPTPTRC

Identification

Function description IEC 61850 identification IEC 60617 identification ANSI/IEEE C37.2 device
Tripping logic phase SPTPTRC
segregated output

Application

All trip signals from the different protection functions shall be routed through the trip
logic. In its simplest alternative the logic will only link the TRIP signal and make sure
that it is long enough.
Tripping logic phase segregated output (SPTPTRC) in the IED for protection, control
and monitoring offers three-phase tripping. two different operating modes:
• Three-phase tripping for all fault types (3ph operating mode)
• Single-phase tripping for single-phase faults and three-phase tripping for
multiphase and evolving faults (1ph/3ph operating mode). The logic also issues
a three-phase tripping command when phase selection within the operating
protection functions is not possible, or when external conditions request three-
phase tripping.
The three-phase trip for all faults offers a simple solution and is often sufficient in
meshed transmission systems and in High Voltage (HV) systems. Since most faults,
especially at the highest voltage levels, are single phase to earth faults, single phase
tripping can be of great value. If only the faulty phase is tripped, power can still be
number
94
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SYMBOL-K V1 EN
Section 11
Logic
247