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Vol. 10 (2007 year), No. 4

Veselov A.E., Nevretdinov Yu.M., Yaroshevich V.V., Kabeev I.E., Fastiy G.P., Tokareva E.A.
Development of technical measures on compensation of short circuit capacitor currents on the ground and on restriction overvoltages in industrial distributive network systems

The analysis of the current actions of Joint Stock Company KAZ load on the hydroelectric power station NIVA-3 generators with the asymmetrical regimes by means of estimation of torsional oscillations and tangential vibrations in the generators has been executed. It has been shown that the double frequency tangential force practically does not create significant vibration displacements with the natural frequency offset of the frontal parts basket. The vibration rates and shock displacements considerably increase in the near-resonant region. The conclusion has been made that the intensive action of the transient currents superposition is the result of the reducing of the water turbines replacement life and an increase in the remedial maintenance frequency.

(in Russian, стр.6, fig. 1, tables. 2, ref 7, Adobe PDF, Adobe PDF 0 Kb)