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  • Users: jing09
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  1. jing09

    PROS AND CONS OF OPEN WYE/OPEN DELTA TRANSFORMER BANKS

    I VISIT A SITE RECENTLY AND INSTALLED A POWER QUALITY ANALYZER. TO MY SURPRISED THE RECORDED DATA IN THE INSTRUMENT SHOWED A VOLTAGE SAG. IT OCCURS 5 TIMES, ALL HAPPENED AT DAWN. NOW MY QUESTION IS HOW DOES THIS VOLTAGE SAG HAPPENED WHEN IT IS DAWN AND NO BUSINESS ESTABLISHMENT WAS OPEN? IS THIS...

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