ABB RELION 650 SERIES, Technical Manual

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14.2.5 Settings
PID-6950-SETTINGS v6
Table 404: SSIMG Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
PresAlmLimit 1.00 - 100.00 - 0.01 5.00 Alarm setting for pressure
PresLOLimit 1.00 - 100.00 - 0.01 3.00 Pressure lockout setting
TempAlarmLimit -40.00 - 200.00 - 0.01 30.00 Temperature alarm level setting of the
medium
TempLOLimit -40.00 - 200.00 - 0.01 30.00 Temperature lockout level of the medium
tPressureAlarm 0.000 - 60.000 s 0.001 0.000 Time delay for pressure alarm
tPressureLO 0.000 - 60.000 s 0.001 0.000 Time delay for pressure lockout
indication
tTempAlarm 0.000 - 60.000 s 0.001 0.000 Time delay for temperature alarm
tTempLockOut 0.000 - 60.000 s 0.001 0.000 Time delay for temperture lockout
tResetPresAlm 0.000 - 60.000 s 0.001 0.000 Reset time delay for pressure alarm
tResetPresLO 0.000 - 60.000 s 0.001 0.000 Reset time delay for pressure lockout
tResetTempLO 0.000 - 60.000 s 0.001 0.000 Reset time delay for temperture lockout
tResetTempAlm 0.000 - 60.000 s 0.001 0.000 Reset time delay for temperture alarm
14.2.6 Monitored data
PID-6950-MONITOREDDATA v5
Table 405: SSIMG Monitored data
Name Type Values (Range) Unit Description
PRESSURE REAL - - Pressure service value
TEMP REAL - deg Temperature of the
insulation medium
14.2.7 Operation principle
GUID-359458EA-FFAA-4A44-A8E8-9469CA069C80 v7
Gas medium supervision SSIMG is used to monitor the gas pressure in the circuit
breaker. Binary inputs of gas density SENPRESALM, SENPRESLO, and gas
pressure signal SENPRES, are taken into account to initiate the alarm PRESALM
and the lockout PRESLO. When SENPRES is less than
PresAlmLimit or binary
signal from CB SENPRESALM is high, the gas pressure alarm PRESALM will be
initiated. Similarly, if pressure input SENPRES is less than
PresLOLimit or binary
signal from CB SENPRESLO is high, PRESLO will be initiated.
There may be sudden change in pressure of the gas for a very small time, for which
the function need not to initiate any alarm. To avoid the intermittent alarm, two
time delays
tPressureAlarm or tPressureLO have been included. If the pressure
Section 14
1MRK 506 382-UEN A
Monitoring
566 Line distance protection REL650 2.2 IEC
Technical manual