06-20-2012 07:42 AM
I am running 2 C9 gensets in parallel. Both the generators has the same load output in terms of kw but the one engine is running at 30% higher engine load.
I've done an injector cut out test and checked the injector actuation pressure. All seems good.
Anybody else experienced the same problem?
06-20-2012 09:00 AM
30% seems like a lot
Is this a new symptom or have these units always had this issue?
Have you verified that the Loadshare control is getting all the correct signals?
What loadshare control are you using?
What are you using for metering? EMCP3?
An open voltage or shorted current signal can cause your issue and if the loadshare control and generator metering share the same signals it will react to the same invalid data.
If your issue is with metering the problem should be in the unit with higher load.
06-21-2012 05:45 AM
Thanks for the feedback
Funny enough, the problem cleared after we cleaned the exhaust particle filter. It was pretty dirty.. Maybe the exhaust back pressure was to high reducing the air flow into the combustion space. This reduced the power output of the engine and so in order to maintain the same load level on the main switch board the one engine needed more fuel to compensate?
I don't know if this makes sense in the practicle world, unless it was just a system fault that cleared after starting the generator again.
06-21-2012 08:15 AM
Glad to hear you sorted the issue.
Excessive exhaust backpressure can definitely cause your issue
30% difference is still a lot but anything is possible.
We all learn from forums such as this one