Monitored Data - ABB Relion 650 Series Technical Manual

Section 10
Monitoring
Name
tTempLockOut
tResetLevelAlm
tResetLevelLO
tResetTempLO
tResetTempAlm
10.3.6
10.3.7
392
Values (Range) Unit
0.000 - 60.000 s
0.000 - 60.000 s
0.000 - 60.000 s
0.000 - 60.000 s
0.000 - 60.000 s

Monitored data

Table 319: SSIML Monitored data
Name
LEVEL
TEMP
Operation principle
Liquid medium supervision SSIML is used to monitor the oil level in the oil
insulated devices. Binary inputs of oil level SENLVLALM, SENLVLLO and oil
level signal SENLEVEL are taken into account to initiate the alarm LVLALM and
the lockout LVLLO. When SENLEVEL is less than LevelAlmLimit or binary signal
from oil insulated device SENLVLALM is high, the oil level indication alarm
LVLALM will be initiated. Similarly, if oil level input SENLEVEL is less than
LevelLOLimit or binary signal from oil insulated device SENLVLLO is high, the
oil level indication lockout LVLLO will be initiated.
There may be sudden change in oil level for a very small time, for which the
function need not to initiate any alarm. To avoid the intermittent alarm, two time
delays tLevelAlarm or tLevelLockOut have been included. If the oil level goes
below the settings for more than these time delays, the corresponding alarm
LVLALM or lockout LVLLO will be initiated. The SETLLO binary input is used
for setting the liquid level lockout LVLLO. The LVLLO output retains the last
value until it is reset by using the binary input RESETLO. The binary input
BLKALM can be used for blocking the alarms, and the BLOCK input can block
both alarms and the lockout indication.
Temperature of the medium is available from the input signal of temperature. The
signal is monitored to detect high temperature.
When temperature input SENTEMP is above TempAlarmLimit, temperature alarm
TEMPALM will be initiated. Similarly, if temperature input SENTEMP is above
TempLOLimit, temperature lockout TEMPLO will be initiated.
There may be sudden change in temperature of the medium for a very small time,
for which the function need not to initiate any alarm. To avoid the intermittent
Step Default
0.001 0.000
0.001 0.000
0.001 0.000
0.001 0.000
0.001 0.000
Type Values (Range)
REAL -
REAL -
1MRK 511 424-UEN B
Description
Time delay for temperture lockout
Reset time delay for level alarm
Reset time delay for level lockout
Reset time delay for temperture lockout
Reset time delay for temperture alarm
PID-6951-MONITOREDDATA v5
Unit Description
- Level service value
deg Temperature of the
insulation medium
GUID-F4340B59-90D0-4EA7-9FD8-F21D425C884A v8
Bay control REC650 2.2 IEC
Technical manual