Hi every body
We have GE gas turbine frame 9 dual fuel controlled by Mark IV system.
The following alarm is coming frequently during normal running since long time and without relation with any particular situation:
<R> voting mismatch (CSRGV)
Also some other alarms are coming but not too much like the above mentioned one:
<R> voting mismatch (FSRS1)
<R> voting mismatch (FSRN)
any way the first alarm is the most repeated one, 90% of time it is coming for <R> , but some time also it is coming with <T> as per our operation staff.
My information that: CSRGV is the VIGV reference angel and as per rung diagram it is the output of the minimum select gate of different inputs (CSRGV manual, part load and temp control).
What I want to say that the inputs to the minimum gate are same in the 3 controllers, why the outputs are not identical? And what are the possibilities of that alarm if any one faced some thing like that before? Also what I can do with this?
One more note which may help: the unit was overhauled before 2 weeks only, but actually that alarm was coming also before the overhaul.
Thanks and regards.
We have GE gas turbine frame 9 dual fuel controlled by Mark IV system.
The following alarm is coming frequently during normal running since long time and without relation with any particular situation:
<R> voting mismatch (CSRGV)
Also some other alarms are coming but not too much like the above mentioned one:
<R> voting mismatch (FSRS1)
<R> voting mismatch (FSRN)
any way the first alarm is the most repeated one, 90% of time it is coming for <R> , but some time also it is coming with <T> as per our operation staff.
My information that: CSRGV is the VIGV reference angel and as per rung diagram it is the output of the minimum select gate of different inputs (CSRGV manual, part load and temp control).
What I want to say that the inputs to the minimum gate are same in the 3 controllers, why the outputs are not identical? And what are the possibilities of that alarm if any one faced some thing like that before? Also what I can do with this?
One more note which may help: the unit was overhauled before 2 weeks only, but actually that alarm was coming also before the overhaul.
Thanks and regards.