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GTG_1007RC_ABB_30Mw.doc
(1) One Used 30Mw ABB Gas Turbines
ABB Plant - USD $4.2MM
Inspection Can Be Scheduled (UK).
(1)Enclosed 1MVA Diesel Generator With Controls
A Schematic Drawing W/Full Scope Has Been Requested
Complete ABB 30MW Gas Plant Operating on Natural Gas
Presently removed. Had Been Well Maintained.
Fair Amount Of Ancillary Equipment : Some of the CC equipment has been scraped
The Seller Is Looking At Selling The Whole Package Including.
Built And Commissioned In 1992,
Decommissioned Since 2000.
Engineer On Site At All Times And Is Occasionally Run Up.
There Have Been Various Examinations On The Unit Including Boroscope Inspections Etc.
On Site Engineer Who Has Been At The Site Since It Was Built And Commissioned Would Be Available To The Buyer To Oversee The Project And Be In A Position To Assist In Re-Build And Re-Commission.
Turbine System
MP Turbine
Turbine Type: ABB Stal-Vax MT25
Rated Economical Output Turbine Coupling:30,970Kw
Rated Max Output Turbine Coupling:35,080Kw
Rated Speed:3628 RPM
Overspeed Trip Setting Electrical:3955 RPM
Overspeed Trip Setting Mechanical:3991 RPM
Normal inlet Steam Pressure:41.0 Bar(e)
Normal inlet Steam Temperature:396 deg C
Exhaust Pressure Economical Load:0,061 Bar(e)
Axial Clearance in Thrust Bearing:0,6 mm
MP Turbine Gear
Reduction Gear: Flender-Graffenstaden-TX82/2
Rated Load (Including Service factor=1.1)35400kw
Speed in:3628 RPM
Speed Out:1500 RPM
Turning Gear
Motor Rating (AC Motor):55 Kw
Speed in:1470 RPM
Speed Out:100 RPM
Limitation of Variation From Rated Steam Pressure And temperature According to I.E.C. publ. 45 see attached excerpt.
Regarding Steam Quality and feed Water Treatment, see attached instruction VTI 0600-1
Generator System
Generator:ABB Drives, Type GRA 1120LK
Output:35,650KVA
Power factor:0,85
Voltage:11KV
Current:1871 Amps
Speed;1500 RPM
Frequency:50Hz
Generator Capability Diagram:67449-6
Generator Capability Diagram:76717-6
Insulation Class Strator, Rotor, Exciter:F
Temp. rise within Class:B
Standards:IEC 34-1
Cooling Arrangements:1CA W
Max Cooling Water Temp:25 deg C
Generator Air Coolers
Number of Coolers:4
Heat Exchanged:476Kw
Cooling Water Flow:11Vs
Cooling Water Inlet Temp:5-25 deg C
Cooling Water Temp. Rise Across cooler:10,52 deg C
Pressure Drop:0.516 Bar
Max Working Pressure, Tube Side:10.5 Bar(e)
Hydraulic System
General
Oil Tank Capacity:0.4 m3
First Filling:0.4 m3
Oil Grade:ISO VG32
Min. Oil Temperature At Start:5 deg C
Max. Oil Temperature:70 deg C
Inline Filter
Filtration, Absolute:3 um abs.
Return Filter
Filtration, Absolute:3 um abs.
Accumulators (Data For One Accumulator)
Number of Accumulators:1
Nominal Value:20-1
Charging Pressure:40 Bar(e)
Pumps (Data For One Pump)
Number of Pumps:2
Capacity:0-0.6 Vs
Discharge Pressure:100 Bar(e)
Motor rating (AC Motor)7.5Kw
Power Consumption:0-7.5Kw
Speed:1720 RPM
Lubrication System
Oil Requirements-See Attached Instruction VTI3200-3
Oil Requirements-See Attached Instruction VTI3200-14
General
Oil Tank capacity:11.5 m3
First Filling:11.5 m3
Oil Grade:ISO VG 32
Oil Pressure Before Bearing And Gear:1,5-,8 bar(e)
Oil Pressure Temp. Bearing And Gear:45 deg C
Nominal Temperature Rise:15 deg C
Negative Pressure In Oil Tank:75-11 mm w.c
Main Oil Pumps (data for One Pump)
Capacity:1500 Vm
Delivery Head:4.5 Bar
Motor Rating (AC Motor):15Kw
Power Consumption:11Kw
Speed:2900 RPM
Emergency Oil Pump
Capacity:735 Vm
Delivery Head:1.87 Bar
Motor Rating (AC Motor):4Kw
Power Consumption:3.2Kw
Speed:2900 RPM
Oil Filter
Pressure Drop:0.8 Bar
Filter Mess Size:25 um abs
Oil Vapor Fan
Exhaust Air Flow:0.2 m3/5
Motor Rating:2.2Kw
Power Consumption:2.1Kw
Oil Coolers (Data For One Cooler)
Number of Coolers:2
Heat Exchanged:587Kw
Cooling Water Flow:25Vs
Cooling Water Inlet temp.:267 deg C
Pressure drop, Tube Side:0,49 Bar
Design Pressure Tube side:10.5 Bar(e)
Gland Steam System
Gland Steam Condenser
Heat exchanged:513Kw
Cooling Medium flow, Nominal:34,.1 kg/s
Cooling Medium Inlet Temp:39.6 deg C
Cooling Medium Outlet Temp:42.7 deg C
Pressure Drop, Tube side:0.14 Bar
Operating Pressure, Shell Side:0.96 Bar(e)
Design Pressure, Tube Side:75.0 Bar(e)
Design Pressure, Shell Side:1.0 Bar(e)
Gland Steam Condenser Fan
Motor Rating:5.5Kw
Power Consumption:3.8Kw
Exhaust damp air Flow:0,092 m3/5
Exhaust Damp Air density:0,816 kg/m3
Exhaust Damp Air Temp:75 deg C
Max allowable Press Drop In Exhaust Pipe:0.5 kPa
Turbine Operating History
Outage:28th October 1993 ABB 24,980 BPS
4 Men Intermediate Inspection On VAX MT 25
Outage:April 1997 ABB 25,650 BPS
4 Men 1-4 April Exclusive
1 Man 2 days Vibration Specialist
Outage:June 1999 Powergen 26,205 BPS
18,785 BPS Definite Quote Work
6.680 BPS Bearing Change E.SV Studs And Overhaul
740 BPS Vibration Testing
Commission: 1993 / September
Operating Hours To Date: 55440 Hrs
Approximate Starts To date:50
Operation Problems:Minor
A)Vibration problems-Minor
B)E.S.V. Broken stud
C)Vacuum Problems
D)Inlet Bearing Replaced
August 2000:Visual Inspection of Steam turbine LP Blading By Powergen