M
Dear all
i have problem in my site. we have gas unit GE frame9FA and inside the turbine compartment one hazardous gas detector (5A) give a negative reading. we stop the machine and change the detector and calibrate also. during calibration it pass and give a "0" reading. but after we start the turbine, we notice at base load and about 260 F turbine compartment temperature the sensor start to give a -ve reading -1, -2, -3 to -8 and give fault alarm. for rack and hazardous gas system. we stop the machine and check the flowing check.
1- check lube oil compartment gravity damper. it is ok.
2- check turbine compartment fire damper. it is found ok open and no stuck.
3- check and meager the cable from terminal block for sensors to panel. it's found ok.
please can you guide me and tell me how to solve this problem
thanks and regards
i have problem in my site. we have gas unit GE frame9FA and inside the turbine compartment one hazardous gas detector (5A) give a negative reading. we stop the machine and change the detector and calibrate also. during calibration it pass and give a "0" reading. but after we start the turbine, we notice at base load and about 260 F turbine compartment temperature the sensor start to give a -ve reading -1, -2, -3 to -8 and give fault alarm. for rack and hazardous gas system. we stop the machine and check the flowing check.
1- check lube oil compartment gravity damper. it is ok.
2- check turbine compartment fire damper. it is found ok open and no stuck.
3- check and meager the cable from terminal block for sensors to panel. it's found ok.
please can you guide me and tell me how to solve this problem
thanks and regards