Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Patent
1990-04-04
1992-08-04
Stephan, Steven L.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transformer protection
361 38, 361111, 361159, G05F 1325
Patent
active
051364530
ABSTRACT:
A polyphase electric power distribution system is protected from the effects of geomagnetic storms by countering the difference of potential between spaced grounding points in the system, and or by altering the magnetic circuits of transformers in the system to reduce half-cycle saturation and associated high peak currents.
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Dougherty Thomas M.
Smith A. C.
Stephan Steven L.
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