Operation & Maintenance of Power Plants
Fig. 1. Alstom’s latest contract in Egypt builds on earlier maintenance successes at the Damietta combined cycle plant.
Efficiency the target for maintenance and repair
When it comes to overhauls, repairs and replacements, power generators are focusing on solutions that can offer improved efficiencies. Sean Ottewell reports.
Cuando llega el momento de las revisiones, reparaciones y reemplazo, los generadores de potencia se centran en soluciones que puedan ofrecer una mayor eficacia. Informa Sean Ottewell.
Wenn es um Überholungen, Reparaturen und Erneuerungen geht, konzentrieren sich Stromerzeuger auf Lösungen, die eine verbesserte Leistungsfähigkeit anbieten können. Sean Ottewell berichtet.
A
lstom Termal Services in Mexico has been awarded a contract worth close to €7m for the rehabilitation and upgrade of the main electrical equipment of unit
4 at Comisión Federal de Electricidad’s (CFE) combined cycle power plant El Sauz in the Mexican state of Queretaro. Te modernisation includes a refurbishment of the steam turbine generator rotor and the modernisation of the generator circuit breaker. Te project of upgrading the electrical generator is the first of its kind in North America using the pre-manufactured, winded stator insert technology. Te use of this technology reduces servicing time on the equipment by approximately 50 per cent. Once upgraded, the generator will optimise start-up times and further increase the reliability of the plant. Alstom is also retrofitting the steam turbine
and replacing three older gas-turbines with a single GT24 gas turbine at the power plant.
All of these works will add at least 25 years to the plant’s lifetime and increase its efficiency by 20 per cent.
Te company has also secured an order
worth approximately €90m from the East Delta Electricity Production Company (EDEPC) for the supply of equipment for a 650MW steam cycle thermal power plant at a site located in the vicinity of Suez city, 150km east of Cairo, Egypt. Te plant will directly provide electricity to
more than half million people residing in the Suez city district and will also be connected to the national grid. It will be commissioned in 2015. Te scope of the contract includes engineering, manufacturing, erection and commissioning of the steam turbine and generator, including auxiliaries such as the condenser and the delivery of spare parts. EDEPC provides electricity for the eastern
part of the country from areas around the Mediterranean city of Damietta up to Egypt’s southern border with Sudan.
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