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auto-transformer for grounding purposes

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BL1

BL1

Mining
Joined
Oct 4, 2004
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6
Location
US
My question is:can an auto-transformer (not a zig-zag)
derive a netural for a high resistance grounded system?
If so,what are the limitations and if not,why?
Thanks in advance for any ideas or thoughts on this subject.
 
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No, you can't create a neutral with only an autotransformer. Basically, you need a zig-zag or a wye delta connection to provide a path for the zero sequence currents to flow.
 
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