低 电 压 时 间 Undervoltage time 无 流 门 槛 Threshold of no current 高 压 零 流 Zero-sequence current setting of transformer high-voltage side ..
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threshold of no current
无电流阈值
以上为机器翻译结果，长、整句建议使用 人工翻译 。
If only phase current is used in breaker failure protection, miss trip may occur no matter the threshold of current is higher or lower than load current.
如果仅采用相电流判据，将无法避免失灵保护误动或者拒动。
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When I point to recent reports from the World Bank and International Energy agency calculating that on current trends we have no chance of keeping within the 2C temperature threshold set by political leaders, she agrees.
BBC: Harrabin's Notes: Broken engagement
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