Smbrrec - ABB REC670 Applications Manual

1MRK 511 401-UEN A
14.2
14.2.1
14.2.2
Bay control REC670 2.2 IEC
Application manual
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.
UMaxEnerg
This setting is used to block the closing when the voltage on the live side is above
the set value of UMaxEnerg.
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.
Autorecloser for 1 phase, 2 phase and/or 3 phase
operation SMBRREC
Identification
Function Description
Autorecloser for 1 phase, 2 phase and/or 3
phase
Application
Automatic reclosing is a well-established method for the restoration of service in a
power system after a transient line fault. The majority of line faults are flashovers,
which are transient by nature. When the power line is switched off by the operation
of line protection and line breakers, the arc de-ionizes and recovers its ability to
withstand voltage at a somewhat variable rate. Thus, a certain dead time with a de-
energized line is necessary. Line service can then be resumed by automatic
reclosing of the line breakers. The dead time selected should be long enough to
ensure a high probability of arc de-ionization and successful reclosing.
For individual line breakers, auto reclosing equipment, the required circuit breaker
dead time is used to determine the "dead time" setting value. When simultaneous
tripping and reclosing at the two line ends occurs, line dead time is approximately
equal to the auto recloser "dead time". If the auto reclosing dead time and line
IEC 61850 IEC 60617
identification identification

SMBRREC

5(0 -->1)
IEC15000204 V1 EN-US
Section 14
Control
IP14559-1 v6
M14890-1 v7
ANSI/IEEE C37.2
device number
79
M12391-3 v8
301