基于量热法的大型水轮发电机损耗测量和效率计算

Consumption measurement and efficiency calculation for large-sized hydraulic generators based on calorimetric method

文章以某大型水轮发电机为例,详述采用量热法测定发电机损耗和效率的方法,同时通过选择特定的发电机运行工况,对各项损耗进行计算,对量热法得到的测量结果进行验证。实践证明,采用量热法进行电机效率测试,操作简便,测量精度和可靠性较高。

The implementing calorimetric method to measure the consumption and efficiency is represented in detail for a certain large-sized hydraulic generator as an example in the paper. Meanwhile each loss is calculated under specific operating conditions,and the test results by calorimetric method are verified. It is proved that calorimetric method of electric engine efficiency test is easy to operate and with high measure accuracy and reliability.