Comparative analysis of power frequency electric field and power frequency magnetic field tests under AC transmission line Yuan NI*, Liang Feng*, Hao Wan*, Jiangong Zhang*, Lin Lu** *China Electric Power Research Institute, Wuhan **State Grid Corporation of China, Beijing Online published on 3 October, 2018. Abstract In order to improve the testing technology of electromagnetic environment and ensure the accuracy of test data, 23 companies carry out the comparison of power frequency electric field and power frequency magnetic field tests at UHV AC test base. After the result data is obtained and Grubbs criterion is used to reject the abnormal values, standard deviation and Z value are obtained after the average value is got. Through data statistics, the main factors affecting the results of power frequency electric field and power frequency magnetic field tests are analyzed from three aspects of test operation, measuring instrument and test environment. It is hoped that it can provide technical guidance for personnel engaged in electromagnetic environment detection. Top Keywords UHV, power frequency electric field, power frequency magnetic field, comparison. Top |
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