ABB Relion 670 series - Autorecloser for 1 Phase, 2 Phase And;Or 3 Phase Operation SMBRREC (79)

A disconnected line can have a considerable potential due to, for instance,
induction from a line running in parallel, or by being fed via the
extinguishing capacitors in the circuit breakers. This voltage can be as
high as 30% or more of the base line voltage.
Because the setting ranges of the threshold voltages VLiveBusEnerg/VLiveLineEnerg and
VDeadBusEnerg/VDeadLineEnerg partly overlap each other, the setting conditions may
be such that the setting of the non-energized threshold value is higher than that of the
energized threshold value. The parameters must therefore be set carefully to avoid
overlapping.
VMaxEnerg
This setting is used to block the closing when the voltage on the live side is above the set
value of VMaxEnerg.
tAutoEnerg and tManEnerg
The purpose of the timer delay settings, tAutoEnerg and tManEnerg, is to ensure that the
dead side remains de-energized and that the condition is not due to a temporary
interference. Should the conditions not persist for the specified time, the delay timer is
reset and the procedure is restarted when the conditions are fulfilled again. Circuit breaker
closing is thus not permitted until the energizing condition has remained constant
throughout the set delay setting time.
15.2 Autorecloser for 1 phase, 2 phase and/or 3 phase
operation SMBRREC (79)
15.2.1 Identification
Function Description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Autorecloser for 1 phase, 2 phase and/or 3
phase
SMBRREC
5(0 -->1)
IEC15000204 V1 EN
79
1MRK 506 369-UUS - Section 15
Control
Line distance protection REL670 2.2 ANSI 653
Application manual