50 MW STEAM TURBINE GENERATOR CONDENSING TYPE
This TG- set was designed and manufactured for a concentrating solar power plant with 8 bleeds for condensate preheating to reach a very high thermal efficiency.
The complete set with two turbine- casings is arranged in one line with HP- turbine, gear, LP- turbine and generator
Technical data
Turbine manufacturer German manufacturer
Year of manufacturing 2008
Commissioning never installed
Turbine type DG and DK
Number of casing 2 horizontal casing split
Type of shaft seal labyrinth
HD MD
Live steam pressure 103 19,5 bara
Live steam temperature 383 383 deg C
Live steam mass flow 53,4 45,0 kg/s
Reheat steam pressure 21 bar
Exhaust steam pressure 0,047 bar
Exhaust steam mass flow 53,4 33,8 kg/s
Turbine speed 7500 3000 rpm
Steam data on turbine nozzle
Pressure + 10 % for any length time
Temperature + 8 K for an length time
Gear
Max power transmission 14 500 kW
Type Single- stage parallel shaft
Speed 7500 / 3000 rpm
Auxiliaries:
Oil tank, Heater for oil unit, Main and auxiliary pumps and for lube and control oil, Emergency oil pump with DC- motor, oil pumps for jacking oil with driver, Twin oil cooler for oil unit, Twin oil filter for lube oil and control oil, oil mist separator, Pressure control valves for oil unit, valves and piping for oil unit
Condensing plant
Condenser Type Surface condenser with axial steam inlet
Exhaust steam mass flow 33,802 kg/s
Condenser pressure 0,047 bara
Exhaust steam temperature 31,7 deg C
Cooling water type Cooling tower
Inlet / outlet temperature 18 / 27 deg C
Flow rate 1931,79 kg/s
Number of passes 2
Material condenser tubes Cu Zn 28 Sn
Auxiliaries for condenser unit:
Vacuum unit, condensate pumps 3 x 50 %,
Ref. 513142
STEAM TURBINE GENERATOR (2) TURBOGENERATOR 180 MW CONDENSATION WITH BLEEDINGS FOR FEED WATER HEATING
STEAM TURBINE GENERATOR (2) TURBOGENERATOR 180 MW CONDENSATION WITH BLEEDINGS FOR FEED WATER HEATING
Condensing - Type, HP-, MP-, 2 x LP- casing with 7 bleeds for feed water-heating and steam- reheating. Manufactured 1965 / 1968, Out of operation 1995
Last main revision turbine 1980 1983
Last main revision generator 1980 1983
Operating hours bevore revision 72 753 80 880
Hot starts before revision 86 83
Cold starts before revision 69 68
Operating hours total 92 691 84 023
Hot starts total 146 139
Cold starts total 157 145
Turbine ABB (BBC) Type D4 YTT 2g 450
Rated output 180 MW 3 000 rpm
Life- steam . 181 bar 535 oC 560 t/h .
Steam reheating 43,6/39,7 bar 333/535 oC
Bleeding 1 0,09 bar Bleeding 5 6,13 bar
Bleeding 2 0,46 bar Bleeding 6 12,6 bar
Bleeding 3 1,33 bar Bleeding 7 21,1 bar
Bleeding 4 2,77 bar
Generator ABB (BBC) Type WTH 882 / 3 000 rpm.
Apparent power 225 MVA Cos phi 0,8
Voltage 10 500 V 50 Hz
Generator-cooling H2 2,5 bar
Main- exciter 1030 kW 375 V
Support- exciter 15 kVA 390 V
Condenser 2 x 6 000 m2 So Ms 71 F 33
Cooling water (river) 23 400 t/h 9 oC
Steam 0,022 bar 291,4 t/h
Auxilliary equipment:
Turbine- oil and control system, gland steam condensing system, boiler- feed- water- preheating system, condensate pumps, boiler feed pumps, vakuum- system, Taprogge- condenser cleaning. station-
Man transformer, station transformer at extra costs
Ref. 513143
STEAM TURBINE GENSET, 137 MW, CONDENSING - TYPE
This turbine was installed in a single line power plant 1962 for burning local lignite. Relocation of the boiler is too expensive due to the old design with brick lined walls.
To secure safe and effective operation the TG- set was continuously modernised, so that this plant is today still of the art.
Main measurements for modernisation
Renewing of the control system and the MCC to Teleperm ME / OS 520
Renewing of the turbine protection system
Installation of a new static exciter system.
Technical data
Steam turbine
Manufacturer Siemens
Casing 3 1/2
Max. continuous rating 137 MW
Life steam conditions 188 bar, 535 OC
Reheat steam 44 bar. 535 OC
Bleeds for feed water reheat 8
Generator
Manufacturer Siemens
Generator capacity 162,5 MVA
Power factor 0,8
Voltage 10,5 kV
Speed 3 000 rpm
Cooling system Hydrogen
Condenser
Condenser type two condenser parallel
Cooling water inlet > 4 deg C in winter, < 20 deg C in summer
Cooling water increase 4 – 5 deg C
Piping material Ms
Measuring and control system
Beginning in 1994 the complete measuring and control system was modernised step by step with the Siemens Teleperm control system ME and operating system OS 520. These systems include the following:
Operation and control of the plant
Evaluation of the process data
Documentation of process data
Auxilliaries
All auxiliaries for safe operation of the plant are available, including turbine and generator control- system,a remarkable lot of spare parts and a crane for maintenance of the tg- set
Also available:
Transformer
Manufacturer Siemens
Main transformer 160 000 kVA, 10,5/242kV
Block transformer 16 000 kVA, 10,5 / 6,3 kV, and 6 / o,4 kV
Also available is a deionisation plant, for boiler make up water with a capacity of 2 x 15 m3/h.
513145
Steam Turbine Genset, 124 MW, Condensing - Type
This TG- set is installed in a power plant in 1959 for burning local lignite with 110 MW,
1994 to 1996 the complete plant was modernised, refurbished and the output increased to 124 MW, so that this TG- set is now state of the art.
Main measurements for modernising:
Renewing of the control system and the MCC to Teleperm ME / OS 520,
Renewing of the turbine protection system and installation of a new static exciter system.
Renewing of the LP- turbine with new rotor and static blades with most modern profile, MD- turbine completely refurbished, HP turbine completely new with new casing and blades with most modern profile (1994/1995), according new name plate manufacturing date now 1995
The initial design of the plant was for in exes of 200.000 operating hours without major repair and overhaul. Total operating hours of the plant were 124.000 with 700 starts. Operating hours since refurbishment in 1994/1995 were 16.000 with 70 starts. About 2/3 of all starts were warm or hot starts.
The plant was shut down in 2004 due to economical reasons.
Technical data
Steam turbine
Manufacturer Siemens
Year of manufacturing 1959 / 1995
Modernising 1995 according name plate manufacturing year
Casing 1 HP 1 IP 1,5 LP, one shaft
Speed 3.000 rpm
Max. continuous rating 124 MW
Life steam conditions 186 bar, 530° C
Reheat steam 44 bar. 535° C
Bleeds for feed water reheat 8
Condenser
Condenser type two condenser parallel
Cooling water inlet < 4° C in winter, > 20° C in sommer
Cooling water increase 4 – 5° C
Piping material Ms
Generator
Manufacturer Siemens
Generator capacity 135 MVA
Minimum Load 60 MWel
Max. Load Steps 2 MWel/Minute
Power factor 0.95
Voltage 10.5 kV
Speed 3 000 rpm
Cooling system Hydrogen
Transformer
Manufacturer Siemens
Main transformer 125 000 kVA, 10.5/220 kV
Block transformer 12 000 kVA, 10.5/6.3 kV, 6/0.4 kV
Ref. 513144
STEAM TURBINE GENSET, 66 MW, EXTRACTION-, CONDENSING - TYPE
STEAM TURBINE GENSET, 66 MW, EXTRACTION-, CONDENSING - TYPE
This TG- set is part of a power plant with one line 66 MWel, started its commercial operation in 1967. In 1985 the steam turbine was refurbished and equipped with an extraction for 114 °C / 80 °C district heating for up to 20 MWth.
Owner did a remaining life time assessment with the result of > 10 years without major investment but permanent maintenance and component control. Detailed revision reports are available. Plant was shut down in 04/2008 based on the commissioning of a new 400 MWel Gas Turbine Combined Cycle and is hold in cold reserve.
Technical data
Steam turbine
Manufacturer BBC (ALSTOM)
Casing 1 x HP, 1 x LP double flow
Max. continuous rating 66 MW
District heating rating 57 MW
Live steam conditions 89 bar, 525 OC
Synchronous Generator
Manufacturer BBC (ALSTOM)
Generator capacity 75 MVA
Voltage 10,5 kV
Power factor 0.8
Speed 3 000 rpm
Exciter 230 V, 1.300 A
Step-Up Transformer
Manufacturer ELEKTRO-BAU A.G.
Rated power 75.000 kVA
Voltage 10,5 / 117 kV
Consumption Transformer
Manufacturer SIEMENS / Wiener Starkstrom Werke
Rated power 8.000 kVA
Voltage 10,5 / 5 kV
Process Control System
Installed in steps 1993 – 1997
Manufacturer SIEMENS
Type Teleperm M
Operating System
Installed 2003
Manufacturer ETM
Type PVSS
Ref. 513146
