14.14.7
Monitored Data
Table 418:
SPVNZBAT Monitored data
Name
Type
Values (Range)
Unit
Description
BATTVOLT
REAL
-
kV
Service value of the battery
terminal voltage
14.14.8
Operation principle
The function can be enabled and disabled with the
Operation
setting. The corresponding
parameter values are
Enable
and
Disable
.
The function execution requires that at least one of the function outputs is
connected in configuration.
The operation of the station battery supervision function can be described by using a
module diagram. All the modules in the diagram are explained in the next sections.
Comparator
V<BattVoltLowLim
Comparator
U<BattVoltHiLim
V_BATT
PU_VLOW
PU_VHI
AL_VLOW
AL_VHI
ANSI11000292-1-en.vsd
0-tReset
0
0
0-tDelay
0-tReset
0
0
0-tDelay
ANSI11000292 V1 EN
Figure 261:
Functional module diagram
The battery rated voltage is set with the
RtdBattVolt
setting. The value of the
BattVoltLowLim
and
BattVoltHiLim
settings are given in relative per unit to the
RtdBattVolt
setting.
It is possible to block the function outputs by the
BLOCK
input.
Low level detector
The level detector compares the battery voltage
V_BATT
with the set value of the
BattVoltLowLim
setting. If the value of the
V_BATT
input drops below the set value of the
BattVoltLowLim
setting, the pickup signal
PU_VLOW
is activated.
1MRK 502 048-UUS A
Section 14
Monitoring
595
Technical manual
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