Recent content by wanfauzan

CSA, thanks for your conclusion. After multiple similar occasions (total house load fluctuation), I came to a conclusion that the house load varies despite what the operator said. The generator AC output is connected to thyristor to convert to DC for the electrolyzer. I suspect something is off...

CSA, When I overlay the graph from unit1 and unit 2, the frequency seems the same for both unit. The minimum deviation I would consider as instrumentation accuracy, as you pointed out. I believe this will be an interesting topic to discuss in the future! That aside, I agree with you on...

Phil Corso, There is no instrument installed to measure the ambient conditions. But on average, the ambient temperature is 35 deg C, RH 60%, 10m AMSL. a) isolated (unit 1 single unit in island) b) parallel (unit 1 & unit 2 parallel without grid) - you can refer to the individual chart in the...

This is not the normal behavior. In fact this is the first occurence of this kind of fluctuation. I forgot to mention that the operator tried to backsynch with the grid after the reset the reverse power relay. However, to no avail. I suspected, the backsynch panel was not able to match the...

The units were commissioned in Feb 2021. Last service was done at 6000 hours last December. Gas engine Kawasaki KG-12 Type: Lean combustion, Pre-combustion chamber with spark ignition, 4 stroke Gen output : 5200kW Nominal speed: 750rpm No of cylinder: 12, V type Cylinder bore: 300mm Cylinder...

CSA It was difficult to determine the total load as it fluctuated once disconnected from the grid. The two units operated for around 1 hour before both unit trips. I have discovered today that the unit 2 was not tripped due to the lube oil pressure LL. Instead, the operator has manually...

Thanks for the reply CSA! Unit 1 trip first by underfrequency, Unit 2 followed due to lube oil pump suddenly stop (3 seconds later), suspected due to the bus disturbance, after Unit 1 trip. Sorry for the lack of communication. Yes, indeed, the frequency decreased slightly. What I was trying...

Completed the IGV setting and managed to bring down the temperature difference from expected value from -20 deg C to -5 deg C. On the HRSG side, there is no much increase in steam output, 15.3 t/hr to 15.6 t/hr, still 1 t/hr less than design value. As you mentioned, the energy to hrsg is almost...

The CJ compensation is enabled. we have 18 typ-K TCs surrounding the exhaust, which are wired to 5 different TC modules. All reading is consistent with each other. And all are showing ambient temperature during engine stop.

>It's certain we don't know all the details of the >situation. So about all that can be said is this: The IGVs >can probably be used to increase the EGT, BUT that will >likely cause the GT power output to decrease for the same >fuel flow-rate. thanks for the reply. currently the GT is...