S
Hi,
Is it possible (or advisable) to bypass the Fire Protection system of a Gas Turbine from Mark VI?
.
.
.
Mark VI is programmed to trip the GT in case of Fire Detection (Heat Detectors) OR in case fire extinguishing (CO2 release Pressure Switch) is detected.
.
.
.
The following signals appear to be the ones responsible for tripping the GT in case of fire
-L45FP_TRIP
-L5CMPST_TRP [Composite Trip from VPRO]
.
.
Both signals go from '0' to '1' in case fire is detected and GT has to be tripped.
If we force these signals to '0'
1.Will the GT still trip in case Fire is detected or CO2 is released?
2.What other undesirable side effects might arise?
The intent behind forcing these signals would be to work on the Fire Detection system (Heat Detectors, Pressure Switches, Limit Switches) without the fear of spurious tripping of the Gas Turbine.
I understand that the answers to the above questions may vary from plant to plant as the Fire Protection scheme might not be the same everywhere, but I'm keeping my fingers crossed that I'll get sound advice. By the way the Fire Protection system at our unit has been provided by Sanco. Any help or advice will be appreciated.
Is it possible (or advisable) to bypass the Fire Protection system of a Gas Turbine from Mark VI?
.
.
.
Mark VI is programmed to trip the GT in case of Fire Detection (Heat Detectors) OR in case fire extinguishing (CO2 release Pressure Switch) is detected.
.
.
.
The following signals appear to be the ones responsible for tripping the GT in case of fire
-L45FP_TRIP
-L5CMPST_TRP [Composite Trip from VPRO]
.
.
Both signals go from '0' to '1' in case fire is detected and GT has to be tripped.
If we force these signals to '0'
1.Will the GT still trip in case Fire is detected or CO2 is released?
2.What other undesirable side effects might arise?
The intent behind forcing these signals would be to work on the Fire Detection system (Heat Detectors, Pressure Switches, Limit Switches) without the fear of spurious tripping of the Gas Turbine.
I understand that the answers to the above questions may vary from plant to plant as the Fire Protection scheme might not be the same everywhere, but I'm keeping my fingers crossed that I'll get sound advice. By the way the Fire Protection system at our unit has been provided by Sanco. Any help or advice will be appreciated.