2012 wtui conference lm2500 package session march 18-21, 2012

2012 WTUI Conference LM2500 Package Session

March 18-21 2012March 18-21, 2012

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Package Issues

• Please Participate!!!

• Don’t be shy

• Help each other

Pl d ’t di ifi $$$$• Please don’t discuss specific $$$$

• Ask your question. You may just get your answeranswer.

2012 WTUI PresentationLM2500 Breakout Session

STARTER CLUTCH ISSUES

W h h d th t th ll l t h h We have heard rumors that the roller cage clutch has failed on a couple of units. At around 8,200 hours and 700 starts it was recommended that we replace ours before it fails and possibly destroy the gearbox. We

l d it th d l t h i t d it replaced it, the removed clutch was inspected it was without any blemishes. So before I go and replace the clutch on a routine basis I'm inquiring as to what the other users are doing.

My Questions

Has any user experienced a failure of the starting y p gclutch?Has anyone replaced a clutch and seen damage to the clutch that would in their opinion if left alone cause a failurefailure.


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Attemperator Systems

W l i dd d h • We are planning to add a desuperheater system to our plant. Does anyone have experience or knowledge with a superheat bypass system? We are looking into the SH bypass as an alternative option to the final stage spray water system.

• Does anyone have an alternative option?


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LM2500 Six Pack PT Blade Twist

D U• Dear Users,From an inspection from the exhaust diffusor we found from 4 neighboring blades (S6B) interlocking tip shrouds disengagement The FSR just pushed them back and once disengagement. The FSR just pushed them back and once in the shop no dimensional deviations could be determined. However, not so confident and would like to know if anybody else has same or comparable experience know if anybody else has same or comparable experience and root cause. Thanks.


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Combined Cycle Peaker Plants

D U• Dear Users,Is anyone operating there combined cycle units as a merchant market peaker?Wh t h d t i t t ti ?• What have you done to improve your startup times?

• Have you been able to reduce your steam turbine startup times?

• Are you participating in any ancillary markets?


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Package IssuesFilter House• Pre filters• Primary filtersPrimary filters• Canister Filters• Instrumentation• Inlet Chiller coils• Inlet Heaters• SMEC system• Corrosion Issues• FOD Screens• Ventilation system issues• Fogging Systems


Package Issues

CO2 Bottle and distribution systemy• Bottles• Hoses• Instrumentation Picture #1• Block Valve• Discharge Nozzles• Fire Control Panel

I ti / P it

Picture #12.5pt black border

• Inspections / Permits


Package Issues

Halon Bottle and distribution systems• Bottles• Hoses• Instrumentation• Block Valve• Discharge Nozzles

Fi C t l P l• Fire Control Panel• Inspections / Permits


Package Issues

Generator Enclosure Fan• Bearing failure• Fan flow switch failure • Belt failure• Motor failure• Expansion joint failure


Package Issues

Turbine Enclosure Fan• Bearing Failure• Fan flow switch failure• Belt Failure• Motor Failure• Expansion Joint Failure• Fan installed gas sensors


Package IssuesTurbine lube oil• Particulate problems• HTS oil (SL2500-10-03R1)HTS oil (SL2500 10 03R1)• Tank issues• Demisters• Filters• Hoses• Thermostatic valves• Cooler problems• VG problems


Package IssuesGenerator Lube oil system• AC lube oil pump• Check Valves• Check Valves• Pressure control valve• Pressure relief valve • Oil analysis issues• Oil analysis issues• Demister• Run down tank


Package IssuesGenerator• Bearing problems• Vibration problemsVibration problems• Proximiters• Exciter• Hi-Pot issues• Mechanical pump problems


Package Issues

Fuel valve• Water getting inside valve• Valve failure• Strainers / Filter issues• Vent valve problems• Block valve problems• Flow meter


Package Issues

Package Crane• Crane Problems• Fit up with A-Frame Fit up with A Frame • Load testing problems• Load Certifications• Interference Problems


Package Issues

Service Bulletins 2011-2012

• 117 Individually Replaceable T54 Probes & Harnesses.• 158 Acoustic Baffle Seal Simplification (DLE and DLE Models).

225 I t f C Di h P S l / S l T th Ti Th l C ti• 225 Intro of a Comp Discharge Press Seal w/ Seal Teeth Tip Thermal Coating.• 228 Hi Pressure Compressor Stage 0 Shroud Bolted Joint Improvement.• 229 Turbine Mid-Frame Liner Improvement.• 230 T54 Harness Support.30 5 a ess Suppo t• 231 Electrical Harness Bracket Improvement.• 232 HPC CDP Seal – Thin Ribbon Honeycomb.


Package Issues

INSTRUMENTATIONINSTRUMENTATION

First checks when engine is not performing to specificationsto specifications.

Instrumentation• Periodic calibration checks of critical instrumentation important.

Criticals performed Quarterly Non-Criticals at least annually

I ff d f d Is offered as part of vendor services.


Package Issues

Electrical• MCC’s• Batteries• Chargers• Inverters


Package Issues

Gas Turbine Controls• Mark 4,5,6• MGTB• Engine Cables / Trays• Wet Panel• MTTB A/C units


Package Issues

Generator Controls• AVR Problems• Beckwith Relays• Satec• Power System Stabilizer• Abnormal operation (excess MVARH’s)• Relay Malfunctions (NERC Reportable)


Package Issues

Enclosure problemsp• Generator package leaks• Turbine Package leaks• Package Parts availability• Enclosure separation wall• Roof skid leaks• Freezing Issues

D• Doors


Package Issues

WATER WASHINGWater wash system• Pump problems• Filters• Nozzles• Instrumentation• Heaters

Important to perform regularly to optimize compressor performanceperformance.

First checks when engine is not performing to specifications.


BOP Discussion• BOP related Items• DCS as related to the GT packageDCS as related to the GT package• Anyone Blackstart if so when did you do it? Lessons learned• Gas Compressor• SCR• Aux Electrical system• Water quality problems (Especially the peakers)


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Package Issues

Any Questions???Comments


2012 wtui conference lm2500 package session march 18-21, 2012

Documents

t h i t d

wh t h d t i t t ti

otherpl d t

i dd d h

removed clutch

desuperheater system

superheat bypass system

roller cage clutch