Valuation about remaining service life of GBM hydraulic power plant units technical and economical aspects

The importance of "Governador Bento Munhoz da Rocha Neto-GBM Power Plant", its time in service and its operating conditions render it necessary to assess the generators' remaining service life. It was also considered appropriate to review the operating conditions relating them with the economical aspects involved. Based on a model proposed by H. Yoshida and K. Uemoto (1986) and in Copel's experience, this paper shows not only the elapsed costs of today's operation planner but also the cost of insulation degradation due to the number of starts and stops. It proposes a new operating condition and suggests insulation tests and maintenance precautions for equipment.<>