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随着水轮发电机单机容量增加,确保连续运行和提高运行技术水平的要求大大增长。此时,关于获得允许特殊运行状态的问题有重要意义,如在稳态和暂态不对称状态下,需知定子负序电流I_2对发电机转子和静子结构件引起的发热和机械作用。过去作的CBφ-1690/175-64型,容量500MW,定子绕组水直接冷却的发电机①和CBB-850/190-48型,容量75MW间接冷却的发电机②的稳态和暂态不对
With the increase of single generator capacity of hydro-generators, the requirements of ensuring continuous operation and improving the technical level of operation have greatly increased. In this case, it is important to obtain the problem of allowing special operating conditions. For example, under steady state and transient asymmetry conditions, it is necessary to know the heat generation and the mechanical effect caused by stator negative sequence current I_2 on the rotor and stator structures of the generator. In the past, CBφ-1690 / 175-64 type, 500MW capacity, stator winding water direct cooling generator ① and CBB-850 / 190-48 type, capacity 75MW indirect cooling generator ② steady and transient wrong