129 / 2019-02-18 14:12:29
Bilateral comparison of voltage transformer measuring systems of NCHVM and PTB
voltage transformers, travelling standard, Bilateral comparison, uncertainty
全文待审
Chunyang Jiang / China Electric Power Research Institute
Hong Yang / China Electric Power Research Institute
Peter Raether / Physikalisch-Technische Bundesanstalt
xue wang / China Electric Power Research Institute
Enrico Mohns / Physikalisch-Technische Bundesanstalt
An intercomparison of voltage transformer calibration systems was performed between National Center For High Voltage Measurement (NCHVM) and Physikalisch-Technische Bundesanstalt (PTB) in order to confirm their measurement capabilities. Two voltage transformers were used as travelling standards with transformer ratios of 10 kV / 100V and (110kV / √3) / 100V at a frequency of 50 Hz and at ambient temperatures of 23 °C ± 3 °C. The measurements has been performed at test points varying from 20% to 120% of the rated voltage. For the ratio of 10kV / 100V the test results differ by no more than 4 parts in 106 for the voltage ratio and 4 μrad for the phase displacement. For the ratio of (110kV / √ 3) / 100V the results agree within 2 parts in 106 for the voltage ratio and 9 μrad for the phase displacement.
重要日期
  • 会议日期

    09月17日

    2019

    09月19日

    2019

  • 03月17日 2019

    初稿截稿日期

  • 04月30日 2019

    初稿录用通知日期

  • 05月31日 2019

    终稿截稿日期

  • 09月19日 2019

    注册截止日期

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