Long-time and short-time overcurrent signal processor for circui
Longitudinal differential protection
Loop control for distribution systems
Loop fault isolator
Loop restoration scheme for distribution feeders
Loss of ground protection for electronic relays
Loss of neutral or ground protection circuit
Loss-of-potential supervision for a distance relay
Loudspeaker overload circuit
Loudspeaker protection circuit
Loudspeaker protection network
Low arc AC contactor
Low bypass fine arrestor
Low capacitance differential input pad with common mode...
Low capacitance protection circuit for telephone equipment
Low capacitance surge protector for high speed data...
Low capacitance surge protector for high speed data...
Low cost apparatus for detecting arcing faults and circuit break
Low cost apparatus for detecting arcing faults and circuit break
Low cost arc fault detection technique