Good Evening Sir
I am working on frame 5 GT (PG5371PA) with mark VIe control system for captive power plant at part load with IGV Exhaust Temp control mode ON.
We started our GT after MI and uprate in first week of may. Following control constants were changed by maintenance
TTK_K-63.9 to 65.96
TTK_C- 109.94 to 111.8731
TTK_S- 2.1718 to 2.1478
TTK_M- 2.916 to 2.88
FPKGNG-2.1 to 2.35
FPKGNO- -23.5 to -24
During start up of GT we face following problems-
1. DE was getting de-clutch before 14HA relay Picked up ( we increased DE rpm from 1750 to 1950 and problem solved)
2. DE was getting de-clutch on 51-53 % TNH and starting FSR was shifting "Acc FSR to Temp FSR" and GT was trip on starting device bogged down.
Again we started GT in colder ambient (Early in the morning)and GT successfully reached upto FSNL and we loaded GT.
Now during start up of 1.2 MW pump at load 15.9 MW, GT is shifting on base load for 2-2.5 sec
Load- 17.2 MW
CPD-7.40 kscg
CTIM- 37 degree C
IGV- 67.7
FSR-58.6
FSRN-58.6
FSRT-58.6
TTRXB-536.7 Degree C
TTXM-524.7 Degree C
TTRX-520 Degree C
TNH-99.4 %
TNR-103.2 %
Please help us to understand the problem
Thanks Again
I am working on frame 5 GT (PG5371PA) with mark VIe control system for captive power plant at part load with IGV Exhaust Temp control mode ON.
We started our GT after MI and uprate in first week of may. Following control constants were changed by maintenance
TTK_K-63.9 to 65.96
TTK_C- 109.94 to 111.8731
TTK_S- 2.1718 to 2.1478
TTK_M- 2.916 to 2.88
FPKGNG-2.1 to 2.35
FPKGNO- -23.5 to -24
During start up of GT we face following problems-
1. DE was getting de-clutch before 14HA relay Picked up ( we increased DE rpm from 1750 to 1950 and problem solved)
2. DE was getting de-clutch on 51-53 % TNH and starting FSR was shifting "Acc FSR to Temp FSR" and GT was trip on starting device bogged down.
Again we started GT in colder ambient (Early in the morning)and GT successfully reached upto FSNL and we loaded GT.
Now during start up of 1.2 MW pump at load 15.9 MW, GT is shifting on base load for 2-2.5 sec
Load- 17.2 MW
CPD-7.40 kscg
CTIM- 37 degree C
IGV- 67.7
FSR-58.6
FSRN-58.6
FSRT-58.6
TTRXB-536.7 Degree C
TTXM-524.7 Degree C
TTRX-520 Degree C
TNH-99.4 %
TNR-103.2 %
Please help us to understand the problem
Thanks Again