Arc fault detection is a critical issue in modern power and photovoltaic (PV) systems owing to the significant safety risks posed by unintended electrical discharges. These faults, occurring when ...

Switchgear comprises electrical disconnect switches, fuses and/or circuit breakers that control, protect and isolate electrical equipment in electrical power systems. A switchgear fault (phase loss, ...

The new IEC standard 63027 will eliminate some of the weaknesses of the old UL 1699B standard, which did not simulate real operation sufficiently. Image: Fraunhofer ISE German research body Fraunhofer ...

The term firefighter switch indicates a remotely controllable DC Disconnect with which the DC side of a photovoltaic system in proximity of the modules (or directly below the cable outlet) can be ...

Residential electrical branch circuit breakers incorporate electronic and electrical technology in Arc Fault Circuit Interrupters that can turn off power to prevent fires if arcing occurs. This ...

Researchers from China's Tianjin University and inverter manufacturer Ginlong Solis have developed a novel AI-based method for DC arc detection in PV systems. A DC arc occurs in PV arrays when there ...

The comparison figure between no arc-fault state and arc-fault state under various type of loads, ranging from 30 W–60 W. An arc fault is an electrical discharge between two conductors due to poor ...

Germany's Fraunhofer ISE announced it published a new international test standard for inverters that incorporate arc fault detection devices. The research institute said the new IEC 63027 standard ...

Schweitzer Engineering Laboratories, Inc. (SEL) has announced the immediate availability of arc-flash detection capability in the SEL-751A Feeder Protection Relay, Schweitzer Engineering Laboratories, ...

Arcs are visible plasma discharges caused by electrical current passing through a normally non-conductive medium such as air. This phenomenon occurs when the current ionises gases in the air, ...