Method for Compensating for Ambient Light for an Arc Flash Detection System for an Electrical Equipment and Arc Flash Detection System for an Electrical Equipment

Method and apparatus for determining phase locking of critical arc light

Digital input electric power system panel meter

Directional over-current ground relay (DOCGR) using sampled value and method for operating the DOCGR

Advanced ground fault circuit interrupters (GFCI) and methods of operation thereof

Micro-grid adaptive relaying

Optically communicative battery management system

Advanced ground fault circuit interrupters (GFCI) and methods of operation thereof

Electrical protection apparatus with test button

System and method for multi-level electronic protection using combination of current sensing and temperature sensing

Load center monitor with optical waveguide sheet

System for improving lightning immunity for a solid state power controller

FAULT PROTECTION CIRCUIT

Arc flash protection system with self-test

Overvoltage protector

Arc flash protection system with self-test

Method and Apparatus For Use In Monitoring Operation of Electrical Switchgear

Multi-terminal power line protection relay system

Overvoltage protector

FAULT TOLERANT TIME SYNCHRONIZATION

Arc flash protection with self-test

Leakage current detection and interruption circuit with improved shield

Leakage current detection and interruption circuit

Spark gap comprising an optically triggered power semiconductor component

User interface for monitoring a plurality of faulted circuit indicators

Optically ignited spark gap

Leakage current detection and interruption circuit with improved shield

Leakage current detection and interruption circuit

High speed transfer system