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1) Stray magnetic flux from nearby conductors and components can influence current transformers (CTs) and cause distorted secondary currents that differ from the primary currents. 2) Testing found that stray flux caused secondary current spikes in a CT with a small core cross-section but not a larger one. 3) Field recordings from phase shifting transformer installations found differential protection relays tripping due to one CT producing a distorted current not matching the other, likely due to stray flu

Author

hydrazine4

Language

EN