HIDROENERGIA 2008 BLED SLOVENIA
BRIGL & BERGMEISTER HP STATION II A REHABILITATION AND UPGRADING PROJECT AT THE RIVER MURA
R. Faast, 13.06.08
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R. Faast–
ANDRITZ VA TECH HYDRO
E. Walch –
ANDRITZ VA TECH HYDRO
A. Warnecke –
WARNECKE CONSULT
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Location of the power station
Brigl II
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Hydrolocical Data
• River Mur • MQ 85.4 m³/s • HQ5 550 m³/s • HQ100 950 m³/s
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flushing canal
Original status 1906
unit 4
unit 3
direction of water flow
unit 2
unit 1
trash rack
power house ground section
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Original status 1906 Turbine data: 4 Francis- flume type turbines Supplier: Voith St. Pรถlten
unit 1 and unit 2 generating electricity Qr = 10 [m3/s] Hr = 4,9 [m] n = 72 [1/min] Pr = 375 [kW]
unit 3 and unit 4 powering grindig machines Qr = 8 [m3/s] Hr = 4,9 [m] n = 77 [1/min] Pr = 300 [kW]
Total installed capacity 1906: 1.350 [kW]
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unit 5
trash rack
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flushing canal
unit 6
flushing canal
Power house extension 1924
unit 4
direction of water flow
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unit 3
unit 2
unit 1
trash rack
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Power house extension 1924 Turbine data: 2 Francis- flume type turbines Supplier: Voith St. Pรถlten unit 5 and unit 6 Qr = 8,9 [m3/s] Hr = 5,7 [m] n = 77 [1/min] Pr = 393 [kW]
unit 5: generating electricity and interchangable powering a grinding machine unit 6: directly powering a grinding machine Total installed capacity 1924: 2.136 [kW]
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First refurbishment and upgrading 1992 Unit No. 2 was replaced by a bevel gear bulb turbine in 1992, unit No. 1 was put out of service. Supplier: ANDRITZ VATECH HYDRO Qr = 30,1 Hr = 6,7 n = 195,9/600 Pr = 1.818
[m3/s] [m] [1/min] [kW]
A step up gear is installed between the turbine runner and the generator.
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First refurbishment and upgrading 1992
generator bevel gear
bulb turbine
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Second refurbishment and upgrading 2006/2007
Feasibility study
unit 5
flushing canal
unit 6
flushing canal
How to proceed unit 4
unit 3
trash rack
direction of water flow
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Second refurbishment and upgrading 2006/2007 Replacement of unit No. 5 and No. 6 by a Kaplan bulb turbine. Supplier: ANDRITZ VATECH HYDRO Commissioning year: 2007 Qr = 31,5 Hr = 6,53 n = 187,5 Pr = 1.869
[m3/s] [m] [1/min] [kW]
water flow
The turbine runner with the turbine shaft is directly coupled to the generator.
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Cross section bulb turbine inlet gate
upper access shaft generator cover guide vanes trash rack
draft tube gate runner
bulb draft tube
generator lower access shaft servo motor
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hydraulic governor
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Second refurbishment and upgrading 2006/2007
turbine inlet gate
cross section
draft tube gate
trash rack bulb turbine draft tube
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Second refurbishment and upgrading 2006/2007 bulb turbine
draft tube trash rack
sheet pile wall
flushing canal 2 sheet pile wall flushing canal 1
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ground section
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Second refurbishment and upgrading 2006/2007 unit No. 5
unit No. 6
start of construction works February 2006 R. Faast, 13.06.08
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Second refurbishment and upgrading 2006/2007
yellow = remaining structure
red = demolished structure
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Construction pit
yellow = remaining structure
grey = new structure
upstream
sheet pile wall
sheet pile wall
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Draft tube section
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Draft tube section
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Turbine inlet section
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Construction pit
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Turbine installation
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Turbine installation
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Turbine installation
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Turbine installation
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Generator installation
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Commissioning work
start of commissioning February 2007 R. Faast, 13.06.08
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BRIGL & ERGMEISTER POWER STATION II • • • • •
energy production increase 1906: 1.350 kW 1924: 2.136 kW 1992: 3.204 kW 2007: 4.287 kW
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TO BE CONTINUED