engleski

Measurement of Hydro-generator’ s End Region Temperature

Paper presents results of measurements of hydro-generator’ s end region steady state temperatures. Measurements were carried out in case of two hydro-generators, 65 MVA and 40 MVA respectively, installed in the same power plant. Four thermal probes were placed in each of the generators. Some of the tests, carried out for under-excited load conditions, had to be interrupted because the temperature of the end region exceeded 130°C. Results indicate that end region temperature should be monitored.

Hydrogenerator; underexcited operation; end region; magnetic field; local increase of temperature

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