短时耐受电流试验设备及其容量的选择  被引量:3

Selection of Short-Time Withstand Current Test Equipment and Its Capacity

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作  者:向儒英 段丽萍 施文龙 张江文 丁正平 XIANG Ru-ying;DUAN Li-ping;SHI Wen-long;ZHANG Jiang-wen;DING Zheng-ping(China Xi’an Fosen Engineering Co.,Ltd,Xi’an 710001,China)

机构地区:[1]西安孚信能源工程有限公司,陕西西安710001

出  处:《电工电气》2021年第6期56-60,共5页Electrotechnics Electric

摘  要:介绍了开关电器短时耐受电流的试验电源系统及其主要设备,分析了试验设备容量的最佳选择方法。针对不同试品阻抗及试验电流的要求,选用电网和短路发电机两种供电方式的应用实例,进行试验设备的选择和相应试验电流的计算,其中对调压变压器不同挡位阻抗的变化和短路发电机强迫励磁工作方式下的试验电流进行了详细计算,对以后的工程应用具有参考价值。The test power supply system and its main equipment for the short-term withstand current of the switching device are introduced.The best selection method of test equipment capacity is analyzed.According to the requirements of different test product impedance and test current,the application examples of two power supply modes of power grid and short-circuit generator are selected,and the selection of test equipment and the calculation of corresponding test current are carried out.Among them,the change of impedance in different gears of the voltage regulating transformer and the test current under the forced excitation mode of the short-circuit generator are calculated in detail,which has reference value for future engineering applications.

关 键 词:短时耐受电流 试验电源 设备容量选择 强迫励磁 

分 类 号:TM56[电气工程—电器]

 

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