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Station service transformer inside the differntial zone

Station service transformer inside the differntial zone

Station service transformer inside the differntial zone

(OP)
How badly does having the station service transformer inside a differential zone effect the protection of a power transformer? (ie 100kva on a 40/50/60MVA secondary) Is detection of turn-to-turn faults still possible?

RE: Station service transformer inside the differntial zone

The secondary SC on 100 kVA aux transformer may not impact the differential on 40 MVA unit.

RE: Station service transformer inside the differntial zone

(OP)
Good to know. Would it be any better if moved to a bus zone (as usually done) or should I just keep it as planned?

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