Autorecloser For 3-Phase Operation Smbrrec (79) - ABB REC650 Applications Manual

1MRK 511 286-UUS A
10.2
Application manual
operation time delay setting is preferable, where the tSCA setting is used. A typical value
for the tSCM may be 1 second and a typical value for the tSCA may be 0.1 second.
Energizing check settings
AutoEnerg and ManEnerg
Two different settings can be used for automatic and manual closing of the circuit breaker.
The settings for each of them are:
• Disabled, the energizing function is disabled.
• DLLB, Dead Line Live Bus: the line voltage is below 40% of the line base voltage
UBaseaccording to the setting GblBaseSelLine about the Global Base Value group,
and the bus voltage is above 80% of the bus base voltage UBase, according to the
setting GblBaseSelBus.
• DBLL, Dead Bus Live Line, the bus voltage is below 40% of the bus base voltage
UBase, according to the setting GblBaseSelBus about the Global Base Value group,
and the line voltage is above 80% of the line base voltage UBase, according to the
setting GblBaseSelLine.
• Both, energizing can be done in both directions, DLLB or DBLL.
ManEnergDBDL
If the parameter is set to Enabled, manual closing is enabled when line voltage is below
40% of the line base voltage UBase, according to the setting GblBaseSelLine about the
Global Base Value group, and when bus voltage is below 40% of the bus base voltage
UBase, according to the setting GblBaseSelBus and also ManEnerg is set to DLLB, DBLL
or Both.
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 3-phase operation SMBRREC (79)

Section 10
Control
197