13.8 kV Industrial Grounding
On the auxiliary grounding for the switchgear and loads, I have not done a lot of multi-grounded schemes before, but I do not see a risk here and would like to know your thoughts on
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What is the grounding practice (solid or low resistance) for three 4160V, 1000kW generators operating in parallel? This is a Level I (Life Safety) generator installation and requires high availability.
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We use neutral grounding transformer and secondary resistance sized to about 3Z0 which in effect reduces current to about 15-20 amps, but each unit is feed into a delta winding which
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