LandOfFree - US Patents - Listing for Electricity: electrical systems and devices,Safety and protection of systems and devices

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Protective relay circuit for detecting arcing faults on low-volt

Electricity: electrical systems and devices – Safety and protection of systems and devices – Feeder protection in distribution networks

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay circuit for interphase faults

Electricity: electrical systems and devices – Safety and protection of systems and devices – With phase sequence network analyzer

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay circuit for regulated power supply

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay circuit providing a combined distance and overc

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Patent

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Protective relay circuits

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay device

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay devices

Electricity: electrical systems and devices – Safety and protection of systems and devices – Series connected sections with faulty section disconnect

Patent

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Protective relay for an electric power system including decision

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Patent

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Protective relay for power system

Electricity: electrical systems and devices – Safety and protection of systems and devices – With tuned circuit

Patent

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Protective relay for power systems capable of being tested with

Electricity: electrical systems and devices – Safety and protection of systems and devices – Feeder protection in distribution networks

Patent

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Protective relay for power systems having fault distance...

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Reexamination Certificate

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Protective relay for power systems having fault distance...

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay having an improved characteristic angle adjustm

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay having out-of-step logic capability

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay interface

Electricity: electrical systems and devices – Safety and protection of systems and devices – Feeder protection in distribution networks

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay methods and apparatus

Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay system

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay system

Electricity: electrical systems and devices – Safety and protection of systems and devices – Feeder protection in distribution networks

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay system

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Protective relay system and sampling synchronizing method theref

Electricity: electrical systems and devices – Safety and protection of systems and devices – Series connected sections with faulty section disconnect

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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