ABB Relion 670 Series Applications Manual page 488

Section 18
Monitoring
18.2.3 Application
Gas medium supervision (SSIMG) is used for monitoring the circuit breaker condition. Proper
arc extinction by the compressed gas in the circuit breaker is very important. When the
pressure becomes too low compared to the required value, the circuit breaker operation shall
be blocked to minimize the risk of internal failure. Binary information based on the gas
pressure in the circuit breaker is used as an input signal to the function. The function
generates alarms based on the received information.
18.2.4 Setting guidelines
The parameters for Gas medium supervision SSIMG can be set via local HMI or Protection and
Control Manager PCM600.
Operation : This is used to disable/enable the operation of gas medium supervision i.e. Off/On.
PresAlmLimit : This is used to set the limit for a pressure alarm condition in the circuit breaker.
PresLOLimit : This is used to set the limit for a pressure lockout condition in the circuit breaker.
TempAlarmLimit : This is used to set the limit for a temperature alarm condition in the circuit
breaker.
TempLOLimit : This is used to set the limit for a temperature lockout condition in the circuit
breaker.
tPressureAlarm : This is used to set the time delay for a pressure alarm indication, given in s.
tPressureLO : This is used to set the time delay for a pressure lockout indication, given in s.
tTempAlarm : This is used to set the time delay for a temperature alarm indication, given in s.
tTempLockOut : This is used to set the time delay for a temperature lockout indication, given in
s.
tResetPressAlm : This is used for the pressure alarm indication to reset after a set time delay in
s.
tResetPressLO : This is used for the pressure lockout indication to reset after a set time delay
in s.
tResetTempLO : This is used for the temperature lockout indication to reset after a set time
delay in s.
tResetTempAlm : This is used for the temperature alarm indication to reset after a set time
delay in s.
18.3 Liquid medium supervision SSIML
18.3.1 Function revision history
Document
revision
A
B
C
Table continues on next page
482
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
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GUID-A840E38C-CC42-4995-A569-A6092DDB81B2 v6
GUID-DF6BEC98-F806-41CE-8C29-BEE9C88FC1FD v3
GUID-37669E94-4830-4C96-8A67-09600F847F23 v4
GUID-751C8C78-891D-423B-825A-0774D0B6C658 v1
Bay control REC670
Application manual