工频电压互感器现场校验
成套装置技术条件
Technical requirement for complete set of on-site calibration of power frequency voltage transformer
| 2020-10-23发布 | 2021-02-01实施 |
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2020-10-23实施日期:
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Technical requirement for complete set of on-site calibration of power frequency voltage transformer
| 2020-10-23发布 | 2021-02-01实施 |




