Aboutcleggsan Expertise All technical areas of Electronics Engineering.
Experience BSEE, MBA, Design, R&D, University Research.
Senior Life Member of IEEE. Life Fellow of AES.
Organizations IEEE, Consumer Electronics Society, Audio Engineering Society.
Broad teaching experience; work experience mostly in consumer electronics and conversion from analog to digital technologies. Pioneer in digital audio at all levels.
Question I work at a mill working on a 3 phase system. Delta primary, Wye secondary on the transformer and on a motor in the mill, the neutral needs a jumper to the main body of the equipment to ground because without it the machine does not operate properly due to the voltage being a bit too high. Basically I was wondering if 'ringing' could cause the cable to have increased voltage drop over it some how? You may need more information as I am often not too clear at explaining the first time. Please let me know and thanks for any help.
Answer Is there an out-of-balance situation that requires the ground strap? If there is current in the neutral jumper it is a sign of some imbalance.
Imbalance could be shorted turns in one of the windings in the motor OR a shorted turn in one of the transformer windings ..... of something like that.
Increased voltage drop at any point is always a result of an increase in current flow. Ohms law works every time when it comes to voltage drops at any point along the pathway.
If you could explain in more detail about the system and what symptoms you are worried about that will help me understand the problem a little better.
