Date Code 990215 Factory-Set Logic 1-41
SEL-351P Manual Técnico
Battery monitor/charger OK
Battery damaged or disconnected
- cannot charge or discharge
Battery failed load test
Relay
Word
Bits
NOBATT
BCBOK
DTFAIL
SEL
OGIC
Setting
79CLS
(reclose
supervision -
at end of
reclose interval
timing; see
Figure 6.2)
DWG: M351P026
Close capacitor charged
Trip capacitor charged
CLCAP
TRCAP
Figure SECTION 1: .30: Reclose Supervision Logic
Trip and Close Capacitors Charged
Relay Word bits TRCAP and CLCAP (in
Figure SECTION 1: .30 logic) indicate that sufficient
trip and close energy is stored in the trip and close capacitors, respectively, for a reclose
operation. It is important that the trip capacitor be fully charged because the recloser might need
to be tripped right after it is reclosed. See subsection Trip and Close Circuits, Breaker Status,
and SF6 Gas Pressure in Section 7: Inputs, Outputs, Timers, and Other Control Logic for
more information on trip and close capacitors.
Healthy Battery
Relay Word bits NOBATT, BCBOK, and DTFAIL (as used in
Figure SECTION 1: .30 logic)
indicate that the battery is healthy. If the battery fails the load test, Relay Word bit DTFAIL
remains asserted to logical 1 until the next load test is successfully passed. See the Battery
section in the SEL-351P Quick-Start Installation and User’s Guide and subsection Battery
System Monitor in Section 8: Breaker/Recloser Monitor, Battery System Monitor, Metering,
and Load Profile Functions for more information.
O
PERATOR
C
ONTROL
L
OGIC
See Operator Controls subsection in the Front-Panel Interface section in the SEL-351P
Quick-Start Installation and User’s Guide for an explanation of the factory-set operation for the
operator controls.
See
Figure SECTION 1: .31 and Figure SECTION 1: .32. The operator controls (except
DESPERTAR) are programmable. Relay Word bits PB1 through PB9 are the outputs of operator
control pushbuttons TERRA HABILITADO through ABRIR, respectively.
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