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Long-time and short-time overcurrent signal processor for circui

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

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Longitudinal differential protection

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

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Loop control for distribution systems

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

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Loop fault isolator

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

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Loop restoration scheme for distribution feeders

Electricity: electrical systems and devices – Safety and protection of systems and devices – Automatic reclosing
Reexamination Certificate

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Loss of ground protection for electronic relays

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Reexamination Certificate

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Loss of neutral or ground protection circuit

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent

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Loss-of-potential supervision for a distance relay

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

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Loudspeaker overload circuit

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

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Loudspeaker protection circuit

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

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Loudspeaker protection network

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

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Low arc AC contactor

Electricity: electrical systems and devices – Safety and protection of systems and devices – Arc suppression at switching point
Reexamination Certificate

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Low bypass fine arrestor

Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Reexamination Certificate

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Low capacitance differential input pad with common mode...

Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate

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Low capacitance protection circuit for telephone equipment

Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Patent

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Low capacitance surge protector for high speed data...

Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Reexamination Certificate

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Low capacitance surge protector for high speed data...

Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Reexamination Certificate

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Low cost apparatus for detecting arcing faults and circuit break

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent

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Low cost apparatus for detecting arcing faults and circuit break

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent

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Low cost arc fault detection technique

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

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