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DEVICE FOR CHECKING ALTERNATION AND PRESENCE OF OPEN PHASE IN THREE-PHASE POWER NETWORK
DEVICE FOR CHECKING ALTERNATION AND PRESENCE OF OPEN PHASE IN THREE-PHASE POWER NETWORK
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机译:三相电网中缺相的检测和出现装置
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摘要
device for controlling rotation and a phase of three-phase power network containing three формировател - ограйичител connected to the phase controlled network element and - d - trigger,d - the entra
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