... 测定determine 侧高计cathetometer 侧功计ergometer ...
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光侧高温计 pyrometer optical
侧高计
Side height gauge
以上为机器翻译结果，长、整句建议使用 人工翻译 。
通过测量用户低压侧三相电流相量，通过特定的算法处理，准确判定用户高计TA的实际变比是否与铭牌一致。
Through measuring three-phase current of low voltage at user side and handling by specific algorithm, TA ratio of HV measuring can be accurately judged whether is consistent with data plate.
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