Packaged solid state surge protector

Paging system

Parallel ac electrical system with differential protection...

Parallel arc detection using discrete wavelet transforms

Parallel connected hts fcl device

Parallel mosfet power switch circuit

Parameter regulating device using a currentwise...

Partial discharge coupler

Peak current limiting system

People protecting ground fault circuit breaker utilizing...

Performance of current transformers during transients

Permanent magnet excited electric machine and method of...

Personal appliance having shock protection circuitry

Personnel protection circuit

Personnel protection system for electrical power connections

Phase comparison relaying apparatus with two-count by-pass...

Phase comparison relaying system with single channel...

Phase control switch apparatus

Phase controlled ground fault circuit interrupter

Phase imbalance detection circuit