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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