Electric auxiliary steam generator for keeping a combined-cycle power plant warm
Energie und Wasser Potsdam GmbH | Potsdam
Energie und Wasser Potsdam GmbH operates the Potsdam Süd CHP plant as a combined-cycle power plant (CCPP). To supply the plant during shutdown periods with keep-warm steam and sealing steam for the steam turbine bearing seals, a reliable electric auxiliary steam generator was required.
Project Highlights
1,100 kg/h auxiliary steam at 10 bar for combined-cycle power plant
Sealing steam for steam turbine bearing seals
72 h BoB – fully autonomous operation without on-site personnel
Initial Situation
- An electric auxiliary steam generator was to be installed at the Potsdam Süd combined-cycle power plant to provide keep-warm steam during shutdown periods.
- In addition, sealing steam was to be supplied for the steam turbine bearing seals.
The Solution from SCHNEIDER-KESSEL BERLIN®
An electrode steam generator of type HDO-E 750/10 with a capacity of 1,100 kg/h (710 kW) at 10 bar was designed, manufactured and supplied. The scope of supply includes all valves and auxiliary equipment as well as the control and switchgear system for 72-hour unattended operation (BoB). SCHNEIDER provided complete installation services including positioning, installation, complete piping installation and commissioning.
Our Services
- Engineering, manufacture and supply of an HDO-E 750/10 electrode steam generator (1,100 kg/h / 710 kW)
- All valves, auxiliary equipment, and control and switchgear system for 72 h BoB
- Complete installation services: positioning, installation, piping installation and commissioning
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Positive Customer Benefits and Added Value
- Reliable keep-warm operation of the combined-cycle power plant in all shutdown phases
- Protection of the steam turbines through continuous sealing steam supply to the bearing seals
- Fully autonomous operation with 72 h BoB – no on-site personnel required
- Rapid return to service of the power plant thanks to the system being kept warm at all times
- Turnkey delivery including piping and commissioning
- Durable resistance heating elements for low-maintenance operation
- Made in Germany – reliability for critical energy infrastructure
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