ABB RED650 - Monitored Data; Operation Principle; Settings

15.2.5 Settings
PID-6950-SETTINGS v6
Table 379: 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
15.2.6 Monitored data
PID-6950-MONITOREDDATA v5
Table 380: SSIMG Monitored data
Name
Type Values (Range) Unit Description
PRESSURE REAL - - Pressure service value
TEMP REAL - deg Temperature of the
insulation medium
15.2.7 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 15 1MRK 505 394-UEN A
Monitoring
534 Line differential protection RED650 2.2 IEC
Technical manual