T35保护与发电机转子过负荷能力配合分析

发布时间：2018-11-09 11:55

【摘要】：通过对GE T35转子过负荷保护特性曲线分析,以制造厂提供的国产大型汽轮发电机转子绕组过负荷限制能力为例,分析T35转子过负荷保护十一种不同类型反时限特性曲线与转子绕组过负荷能力的配合情况,在既满足励磁系统顶值电流和时间要求,又兼顾过励限制保护定值整定,充分发挥发电机转子绕组允许过负荷限制能力的条件下,得出IAC Extreme Inverse特性曲线为最佳配合关系曲线,可供继电保护整定计算时参考。
[Abstract]:By analyzing the characteristic curve of GE T35 rotor overload protection, taking the overload limiting capacity of rotor winding of domestic large turbogenerator provided by manufacturer as an example, This paper analyzes the coordination of eleven kinds of reverse time characteristic curves of T35 rotor overload protection with rotor winding overload capacity. It not only meets the requirements of the top current and time of excitation system, but also takes into account the setting value of over-excitation limited protection. Under the condition that the rotor winding of generator can be restricted by overload, the IAC Extreme Inverse characteristic curve is obtained as the best matching curve, which can be used as a reference for the calculation of relay protection setting.
【作者单位】：神华国华太仓发电有限公司;神华国华(北京)电力研究院有限公司;
【分类号】：TM31

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