338
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CONTROL ELEMENTS
CHAPTER 7: PROTECTION
Figure 276: Autoreclose scheme reclose-in-progress logic
After entering the reclose-in-progress state, a close command will be issued after the dead
time delay. The dead time for the initial reclose operation will be determined by either the
1-P Dead Time
,
3-P Dead Time 1
, or
3-P Dead Time 2
setting, depending on the fault type
and the mode selected. After the dead time interval the scheme will assert the
AR CLOSE
BKR 1
or
AR CLOSE BKR 2
operands, as determined by the sequence selected. These operands
are latched until the breaker closes or the scheme goes to reset or lockout.
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