0.5级直流高压分压器测量不确定度评定及验证

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【摘要】基于直流高压分压器检定相关规范，采用“差值法”对直流高压分压器分压比进行校准，对分压比校准结果评定了测量不确定度，并采用“传递比较法”进行了校准结果的验证。通过相对标准不确定度的计算，提出相应的技术分析建议，有助于提升0.5级直流高压分压器测量结果的准确性。

【关键词】直流高压分压器；差值法；不确定度分析；传递比较法

【DOI编码】10.3969/j.issn.1674-4977.2023.06.009

Evaluation and Verification of Measurement Uncertainty of 0.5 Level DC High-voltage Voltage Divider

ZHANG Weixian， WU Weilan， ZHANG Haiqi， LIU Yi

（Guangzhou Yueneng Power Technology Development Co.， Ltd.， Guangzhou 510000， China）

Abstract： Based on the relevant specifications for the verification of DC high-voltage voltage dividers， the "difference method" was used to calibrate the voltage ratio of DC high-voltage voltage dividers. The measurement uncertainty was evaluated for the calibration results， and the calibration results were verified using the "transfer comparison method". By calculating the relative standard uncertainty and proposing corresponding technical analysis suggestions， it is helpful to improve the accuracy of the measurement results of the 0.5 level DC high-voltage divider.

Key words： DC high-voltage voltage divider； difference method； uncertainty analysis； transfer comparison method

0引言

为确保实验室直流高压分压器计量标准量值准确可靠，提高计量检定水平，实验室校准人员依据JJG 1007—2005《直流高压分压器》检定规程，采用“差值法”对直流高压分压器分压比进行校准，并对分压比校准结果测量不确定度进行评定。（剩余3087字）