Barreto U.,CEEE GT |
Danzmann C.,CEEE GT |
Silveira Vieira J.A.,CEEE GT |
Pileco R.C.,CEEE GT
International Journal on Hydropower and Dams | Year: 2010
The upgrade of bearings played a key role at the hydroelectric power project in Itauba, Brazil. Self-lubricating bearings with a bimetallic structure were adopted, with various solutions being applied in different parts of the distributor mechanism in the refurbishment scheme. Downtime of 150 days per unit was required to carry out this maintenance. The generating units to the operational conditions of the original project and other systems were also refurbished to optimize this time and restore the generating units to the operational conditions of the original project. Some of the systems were water intake gates, penstock and expansion joint, generator, cooling system, wear ring hub of the turbine, the temperature measuring system, and the distributor mechanism.