LEAG (Vattenfall) operates several power plants in the Lusatia region. The transformers available at the sites are analyzed for their condition and further fitness for operation, by evaluating various data. The aim is to evaluate each transformer (e.g. using oil analysis or online monitoring systems) and to compare it with transformers at other LEAG sites in order to detect abnormalities and initiate appropriate measures before damage occurs. This will also enable a holistic planning of further inspection measures and spare parts procurement.

Dornier Power and Heat’s scope of work includes the creation and continuous maintenance of a transformer database. In addition, a subject-specific evaluation and regular assessment is carried out and presented to the operator.

Services of Dornier Power and Heat at a glance

• Creation or extension of the transformer database for relevant transformers (auxiliary, FN and generator transformers)
• Entry of existing data records from past operating periods
• Entry of data on reserve strategy and inspection cycles as provided by the operator
• Continuous maintenance of data collected by the operator and forwarded to Dornier Power and Heat
• Regular evaluation of data (comparison with standards, national and international expert systems, type-specific limit values, comparisons with other sites, comparisons with previous operating behavior)
• Preparation of a meaningful record, incl. recommendation of measures, preparation of sequence schedule for measures (scope, deadlines etc.)