Dears,
We are trying start one turbine GE MS5001P Heavy duty dual fuel, but it had tripped several times by overspeed protection.
The machine was working on liquid fuel because not fuel gas availability, now we are trying start it on fuel gas but the speed turbine up over FSNL (100.3%) setting and continues until it trips by "Protective module overspeed trip - HP".
We had made next actions:
SRV servovalve was replaced.
SRV/GCV blocks was checked.
Autocalibrate was made.
In addition we did start on liquid fuel and tried fuel transfer to gas and the turbine trip too.
The last trip log display is attached to this post.
We please your help in order to fix this trouble
Thanks in advance
We are trying start one turbine GE MS5001P Heavy duty dual fuel, but it had tripped several times by overspeed protection.
The machine was working on liquid fuel because not fuel gas availability, now we are trying start it on fuel gas but the speed turbine up over FSNL (100.3%) setting and continues until it trips by "Protective module overspeed trip - HP".
We had made next actions:
SRV servovalve was replaced.
SRV/GCV blocks was checked.
Autocalibrate was made.
In addition we did start on liquid fuel and tried fuel transfer to gas and the turbine trip too.
The last trip log display is attached to this post.
We please your help in order to fix this trouble
Thanks in advance
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