{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\froman\fprq2\fcharset0 Times New Roman;}} {\*\generator Msftedit 5.41.15.1507;}\viewkind4\uc1\pard\ul\b\f0\fs24 Major Overhaul in 1990\ulnone :\b0\par - The compressor rotor and Turbine rotor were removed and sent to the GE Cincinnati Service centre repair shop in Cincinnati Ohio.\par \pard\fi720\par \pard\ul\b Compressor Rotor\ulnone : \par \b0 - The compressor rotor was un-stacked and wheels were NDT inspected. The wheels were coated with Al-Seal and top coated to retard corrosion. \par - New compressor blades were installed\par - The R/O was checked and balanced each blade and wheel assembly.\par - Each wheel assembly was computer stacked. \par - The compressor was restacked with new compressor through bolts. \par - The complete rotor was given a final balance and final run outs.\par - The Inlet guide vanes were replaced with GTD-450 Reduced camber (High Flow) \par - The new compressor vanes were installed in the stator. \par \par \ul\b Turbine Rotor\ulnone :\par \b0 - The turbine rotor was disassembled A/O cleaned and all components were NDT inspected.\par - Rotor bolt holes were cleaned and measured for wear.\par - Rotor bolts were cleaned and NDT inspected.\par - Performed bucket rock check to GE TIL 1049\par - Weighed and computer charted three stages of customer supplied buckets\par - Coated wheels with Al-Seal with topcoat to retard corrosion.\par - The wheel was balanced.\par - R/O check all rotor components.\par - Computer stacked rotor components and installed buckets.\par - The first stage, second stage and third stage buckets were replaced with refurbished parts.\par - Final run out and balance performed on complete assembled rotor.\par - In the combustion section the combustor cans and transmission section were replaced with re-conditioned parts. The hot gas path turbine section was over hauled. The first, second and third stage nozzles were replaced with re-conditioned parts. \par \b\par \par \tab\par \ul Compressor Section\ulnone :\par \b0 - During the major overhaul in 1990the original Inlet guide vanes were replaced with GTD-450 Reduced camber (High Flow) vanes installed. \par \b\tab\tab\par \ul Combustion Section (Dual Fuel Natural Gas / Propane)\ulnone :\par \b0 - Stop Ratio and control valves for Natural gas\b\par \b0 - Stop Ratio and control valves for Propane Gas\par - One set of natural gas fuel nozzles and fuel nozzle bodies\b\par \b0 - Fuel manifold and pigtails for natural gas service\b\par \b0 - Combustor Cans and Transition pieces replaced with reconditioned parts in 1990 \par - Major Bearings 1,2,3 & thrust inspected and repaired as required\b\par \tab \par \ul Exhaust Section\ulnone :\par \b0 - Standard side discharge exhaust frame/duct inspected and repaired\par \b\par \ul Enclosures\ulnone :\par \b0 - \b\tab\b0 Control cab c/w all motor control panels\par - \tab Turbine compartment\par - \tab Collector compartment\par - \tab Generator seal oil/H2 compartment\par \par \ul\b Controls\ulnone :\par \b0 - Gas turbine controls are the original GE Speedtronics Mark 1\par - Bentley Nevada 7200 series vibration monitor and 2 - 9,000 series temperature\b \b0 monitors\b\par \b0 - GE exhaust spread monitor (combustion monitor)\b\par \b0 - Fuel Gas stop & control valves (natural gas & propane)\b\par \par \ul Accessories\ulnone :\par \b0 - 4160 volt starting motor and torque converter\par - Lube oil and control oil systems\par - Shaft drive Main Lube Oil Pump and Hydraulic Pumps\par - AC Motor Drive Aux Lube Oil Pump (Full Capacity)\par - AC Motor Emergency Lube oil pump with DC motor piggyback Drive\par - Dual Lube Oil Filters and Coolers with Change over Valves\par - Accessory gearbox\par - Bearing Oil Demister system\par - Turning gear\b\par \par \ul 4160 Volt Switchgear for starting motor\ulnone :\par \b0 - 575 Volt Motor Control center\b\par \b0 - CO2 Fire protection System \b\par \b0 - Dual battery charger. (No batteries available as these had failed and have not been replaced.)\par \pard\li720\b\par \pard\ul Generator\ulnone :\par \b0 - Hydrogen Cooled (30 psi)\par - Specs: 2 pole, 64 MVA, 14,4000 volts, 2,566 amps, \b\par \b0 - 746 field amps, 250 field volts, PF = 85, 3,600 rpm, \b\par \b0 - Rotor rebuilt in 1984\par - Stator - original\b\par \b0 - Terminated at SCT (saturatable current transformer) compartment (SCT included)\par - Power transformer for the Static exciter \par - Lube oil and seal oil systems\b\par \b0 - Static Exciter (original)\par - Self contained lube oil and seal oil system\b\par \b0 - 2 Electric motor lube and seal oil pumps\b\par \b0 - Seal Oil control panel\b\par \b0 - Dual Lube oil coolers and Filters with Accumulators\b\par \b0 - Generator Coolers \b\par \par Heat Recovery Steam Generator is available as a separate item and price to be determined if purchaser is interested in buying same. \par \tab\par The HRSG has two Natural Circulation boiler evaporator section. \par \b0 - The first high-pressure section operating steam pressure at 1400 psig with final super heated steam temperature of 880 F. Rated steam output of 195,000 lbs per hour. \par - High pressure Economizer with a flow capacity of 500,000 lbs per hour operating pressure 1400 psig, inlet water temperature 294F outlet flow temperature at 520F.\par - Low-pressure Evaporator section operating pressure at 50 psig at saturated steam temperature of 297F Rated steam flow of 30,000 lbs per hour.\par \par \b Low pressure feed water heater for a water flow of 500,000 lbs per hour. Inlet water temperature of 65 oF and an outlet flow temperature of 275 oF\par \par \ul HRSG Exhaust Stack\ulnone :\par \b0 - The existing HRSG exhaust stack is available as a separate item.\par - The stack is 14 ft diameter and 100 feet in height self-supporting.\b\par \b0 - The stack carbon steel material\par \b\par }