This paper presents an adapted technique to calibrate the AC voltage divider of AC high-voltage measuring systems up to 200 kV at the Egyptian National Institute of Standards. Two identical capacitors have been used as two similar AC high-voltage capacitive dividers. Firstly, the dividing ratios of two capacitors have been achieved by calibrating each capacitor via a traceable reference standard AC high-voltage divider up to 100 kV. Then, both capacitors have been connected in series to perform as one 200-kV AC voltage divider. They have been calibrated via the same 100-kV reference standard divider to experimentally get their actual dividing ratios up to 100 kV. In order to get their dividing ratios from 100 to 200 kV, a mathematical derivation has been determined. The concept of this derivation is when applying the doubled voltage to two identical pre-calibrated voltage dividers connected in series, their input voltage is almost equally divided across these two dividers. Finally, these calibrated two series capacitors have been used to calibrate a voltage divider of a 200-kV AC HV measuring system. The uncertainty contributions for all the results have been estimated. Enhanced uncertainties have been acquired using this proposed adapted calibration technique.

中文翻译：

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交流高压测量系统的分压器校准技术

本文介绍了一种适用的技术，它可以在埃及国家标准学院校准高达200 kV的交流高压测量系统的交流分压器。两个相同的电容器已用作两个类似的交流高压电容分压器。首先，通过可追溯的参考标准交流高压分压器（最高100 kV）对每个电容器进行校准，从而实现了两个电容器的分压比。然后，两个电容器已串联连接以用作一个200 kV AC分压器。它们已经通过相同的100 kV参考标准分压器进行了校准，以通过实验获得高达100 kV的实际分压比。为了使它们的分压比从100到200 kV，已经确定了数学推导。这种推导的概念是，当将加倍的电压施加到串联连接的两个相同的预校准分压器时，它们的输入电压几乎在这两个分压器之间均分。最后，这些经过校准的两个串联电容器已用于校准200 kV AC HV测量系统的分压器。已经估计了所有结果的不确定性贡献。使用这种建议的适应性校准技术已经获得了增强的不确定性。