P&ID extraction for power generation.
Outage cycles rebuild the controls baseline every few years. A combined-cycle plant carries 200-500 P&IDs across gas turbine, HRSG, steam turbine, condenser, and BOP, and the tag system on the page depends on whose lineage drafted it.
- Classified I/O list with AI, AO, DI, DO per instrument
- Master instrument index across the full drawing set with tag-collision detection
- Equipment list. Turbines, generators, HRSGs, condensers, feedwater heaters, pumps
- Line list with size, pipe spec, service, joinable back to instruments
- Valve list. Control, on, off, relief, manual, with fail position and actuator type
- BOP vs SIS separation for safety-system documentation
- Revision comparison for outage planning and pre-startup documentation
- KKS is the dominant tag system in thermal and renewable plants. KKS, ISA 5.1, and IEC 81346 all read where the project crosses regions
- Combined-cycle plants run 200-500 P&IDs across gas turbine, HRSG, steam turbine, condenser, BOP, and auxiliary loops. Off-page connector matching keeps loops intact
- Pre-startup safety reviews require BPCS and SIS to be reviewable independently. Excel export segments them on separate sheets
- Cooling-water and condenser circuits carry hundreds of valves. Valve list segments control, on, off, relief, and manual valves
- Nuclear balance-of-plant, non-safety-related, non-1E drawings extract normally. Safety-related nuclear documentation operates under a regime this extraction does not replace
- Renewables, solar PV, wind, BESS carry electrical-instrumentation density. Equipment list captures inverters, transformers, and battery racks where the drawing tags them
- District energy and cogen steam, hot-water, and chilled-water loops follow utility-loop patterns from any large facility
- FGD, SCR, and ESP environmental-control drawings carry analyzer density that filters into emissions-monitoring subsets
- NERC CIP for transmission-connected generation
- EPA emissions monitoring documentation references P&ID-derived instrumentation
- IEC 61511 for SIS lifecycle on plants where it applies
- Local jurisdictional outage and pre-startup safety review, PSSR regimes
Which discipline reads it.
Electrical EngineerElectrical EngineersGenerator step-up transformer, switchyard, and auxiliary MV system scope. Protection-relay coordination tag census.Controls EngineerControls EngineersBMS, burner management instrumentation. Turbine and generator control system tag census.Mechanical EngineerMechanical EngineersSteam turbine, gas turbine, HRSG, and condenser scope. Vibration, axial-position, and bearing-temperature instrumentation.Commissioning EngineerCommissioning and Startup EngineersLoop-by-loop and system-by-system handover against NERC and OEM punch-list scope.
10LBA10CT001KKS-style temperature transmitter on a feedwater heaterPT-CW-4203Pressure transmitter on cooling-water header, area 42, loop 03FT-FW-5108Flow transmitter on a feedwater loop, area 51, loop 08ZSC-MOV-7305Motor-operated valve closed feedback, area 73, loop 05VT-GT-BRG-2204Gas turbine bearing vibration transmitterAT-SCR-NOX-3105SCR outlet NOx analyzer feeding ammonia injection controlRelated
GlossaryBasic Process Control System, BPCSGlossarySafety Instrumented System, SISAudienceFor Electrical EngineersAudienceFor Controls EngineersAudienceFor Mechanical EngineersAudienceFor Commissioning EngineersIndustryLNGIndustryRefiningSolutionBrownfield P&ID digitizationSolutionP&ID revision comparisonConvertP&ID to instrument indexConvertP&ID to valve listConvertI/O list to TIA Portal