14.15.2
Functionality
Insulation gas monitoring function SSIMG is used for monitoring the circuit breaker
condition. Binary information based on the gas pressure in the circuit breaker is used
as input signals to the function. In addition, the function generates alarms based on
received information.
14.15.3
Function block
SSIMG
BLOCK
BLK_ALM
PRESSURE
TEMP
PRES_ALM
PRES_LO
SET_P_LO
SET_T_LO
RESET_LO
PRESSURE
PRES_ALM
PRES_LO
TEMP
TEMP_ALM
TEMP_LO
IEC09000129-1-en.vsd
IEC09000129 V1 EN
Figure 262:
SSIMG function block
14.15.4
Signals
Inputs PRESSURE and TEMP together with settings
PressAlmLimit
,
PressLOLimit
,
TempAlarmLimit
and
TempLOLimit
are not supported
in this release of 650 series.
Table 420:
SSIMG Input signals
Name
Type
Default
Description
BLOCK
BOOLEAN
0
Block of function
BLK_ALM
BOOLEAN
0
Block all the alarms
PRESSURE
REAL
0.0
Pressure input from CB
TEMP
REAL
0.0
Temperature of the insulation medium from CB
PRES_ALM
BOOLEAN
0
Pressure alarm signal
PRES_LO
BOOLEAN
0
Pressure lockout signal
SET_P_LO
BOOLEAN
0
Set pressure lockout
SET_T_LO
BOOLEAN
0
Set temperature lockout
RESET_LO
BOOLEAN
0
Reset pressure and temperature lockout
1MRK 502 048-UEN A
Section 14
Monitoring
555
Technical manual
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