Dear CSA and others,

For the last few days, we find that the HP acceleration FSR and speed control FSR keep changing at the control status, in the main page of Mk6 GT Fr5 turbine. (values of HP acceleration FSR and speed FSR (FSRN) are close to each other with 0.2 to 0.4%) during part load operation. Nothing was changed and our speed sensors all are working and reading fine.

There must be at least 2 to 3% FSR difference among these two,when compared to other GTs reading.

To reduce the FSRN at this point, CAN i reduce the FSKRN1 (constant for the FSNL)by 0.2 to 0.4 %, under this equation?

FSRN = FSKRN1 + FSKRN2 (TNR-TNH)

Pls advice to keep a marginal difference between HP accl FSR and FSRN. and how to solve the problem? Thanks..

 

Dear Eskay,

I believe changing constant FSKRN1 will affect your droop setting and imho you are advised not to.

Firstly you need to make sure fuel control valves and speed sensor are calibrated and working properly. you need to check the servos, lvdt and speed sensor.

is the FSKRN1 constant is similar to all GT?

I'm new in this field. hope it helps. thanks