8-14
Breaker/Recloser Monitor, Battery System Monitor,
Date Code 990430
Metering, and Load Profile Functions
SEL-351P Manual Técnico
Figure SECTION 8: .8:
Input IN102 Connected to Trip Bus for Breaker Monitor
Initiation
If the SEL
OGIC
Control Equation breaker monitor initiation setting is set:
BKMON = IN102
then the SEL-351P monitor sees all trips.
If output contact OUT101 asserts, energizing the trip bus, the contact wear monitor classifies it
as a recloser control initiated trip. This is because when BKMON is newly asserted (input IN102
energized), the TRIP Relay Word bit is asserted. Thus, the current and trip count information is
accumulated under recloser control initiated trip (Cntrl Trips).
If the control switch trip (or some other external trip) asserts, energizing the trip bus, the breaker
monitor classifies it as an externally initiated trip because the TRIP Relay Word bit is not
asserted when BKMON asserts (input IN102 energized). Thus, the current and trip count
information is accumulated under externally initiated trips (Ext Trips).
B
ATTERY
S
YSTEM
M
ONITOR
The SEL-351P monitors the internal battery charger and the external batteries. This subsection
describes how the battery system operates, how the battery system is automatically and manually
checked, and what the SEL-351P does when the battery system is OK or when it detects a
problem. See the
Battery
section in the
SEL-351P Quick-Start Installation and User’s Guide
.
The following settings are discussed in this subsection:
•
Battery Amp-hours (6.5 - 20)
AMPHR = ______
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