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I want to know about GE MARK-V & MARK-VIe instruments tagging scheme with their abbreviations and meanings.
If someone have list please share with me.
Thanks
If someone have list please share with me.
Thanks
GE Gas turbine instruments tagging scheme required with abbreviation and meanings
This topic has been covered many times on control.com. GE generally follows the ANSI device numbering scheme, and typically uses two alpha characters after the device number to denote the system and/or some condition.
For example, a 26 device is a temperature switch. Device 26QT-1 is a Lube Oil Header temperature switch that actuates on a high-high temperature to indicate the turbine should be tripped. The "Q" in the device name refers to the Lube Oil system, and the "T" means the switch is actuated when the temperature has exceeded the setpoint at which the turbine should be tripped.
If you have a Mark V, you can find an ASCII text file in the unit-specific directory of the operator interface (for example, F:\UNIT1) called LONGNAME.DAT. This files has a LOT of information about signal names in the Mark V, and many signal names are directly related to field devices and instruments. So, L26QT1A would be associated with device 26QT-1. Some signal names are closer to the device name; some aren't.
If the turbines are combustion turbines and were packaged by GE, then there is usually a document provided with the units called the Device Summary. The majority of devices provided with the turbine and auxiliaries (not the driven device--a generator or a compressor) are listed in the Device Summary, along with setpoints for calibration and actuation.
For example, a 26 device is a temperature switch. Device 26QT-1 is a Lube Oil Header temperature switch that actuates on a high-high temperature to indicate the turbine should be tripped. The "Q" in the device name refers to the Lube Oil system, and the "T" means the switch is actuated when the temperature has exceeded the setpoint at which the turbine should be tripped.
If you have a Mark V, you can find an ASCII text file in the unit-specific directory of the operator interface (for example, F:\UNIT1) called LONGNAME.DAT. This files has a LOT of information about signal names in the Mark V, and many signal names are directly related to field devices and instruments. So, L26QT1A would be associated with device 26QT-1. Some signal names are closer to the device name; some aren't.
If the turbines are combustion turbines and were packaged by GE, then there is usually a document provided with the units called the Device Summary. The majority of devices provided with the turbine and auxiliaries (not the driven device--a generator or a compressor) are listed in the Device Summary, along with setpoints for calibration and actuation.
